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Computer vulnerabilities of Citrix XenServer

computer vulnerability alert CVE-2018-7541

Xen: denial of service via a change of page table type

Synthesis of the vulnerability

A privileged attacker in a guest system can request a change of page table type to Xen without unmapping related pages, in order to make the host crash.
Impacted products: XenServer, Debian, Fedora, openSUSE Leap, SUSE Linux Enterprise Desktop, SLES, Xen.
Severity: 1/4.
Consequences: denial of service on server, denial of service on service.
Provenance: user shell.
Creation date: 27/02/2018.
Identifiers: CERTFR-2018-AVI-102, CERTFR-2018-AVI-145, CERTFR-2018-AVI-171, CTX232096, CTX232655, CVE-2018-7541, DLA-1300-1, DLA-1577-1, DSA-4131-1, FEDORA-2018-0746dac335, FEDORA-2018-c553a586c8, openSUSE-SU-2018:1274-1, SUSE-SU-2018:0678-1, SUSE-SU-2018:0909-1, SUSE-SU-2018:1184-1, VIGILANCE-VUL-25386, XSA-255.

Description of the vulnerability

A privileged attacker in a guest system can request a change of page table type to Xen without unmapping related pages, in order to make the host crash.
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computer vulnerability CVE-2018-7540

Xen: denial of service via the L3/L4 page table management

Synthesis of the vulnerability

A privileged attacker in a guest system can make interrupt processing too long by requesting Xen to change the L3/L4 page tables, in order to trigger a denial of service.
Impacted products: XenServer, Debian, Fedora, openSUSE Leap, SUSE Linux Enterprise Desktop, SLES, Xen.
Severity: 1/4.
Consequences: denial of service on server, denial of service on service, denial of service on client.
Provenance: user shell.
Creation date: 27/02/2018.
Identifiers: CERTFR-2018-AVI-102, CERTFR-2018-AVI-145, CERTFR-2018-AVI-171, CTX232096, CTX232655, CVE-2018-7540, DLA-1300-1, DLA-1577-1, DSA-4131-1, FEDORA-2018-0746dac335, FEDORA-2018-c553a586c8, openSUSE-SU-2018:1274-1, SUSE-SU-2018:0678-1, SUSE-SU-2018:0909-1, SUSE-SU-2018:1184-1, VIGILANCE-VUL-25385, XSA-252.

Description of the vulnerability

A privileged attacker in a guest system can make interrupt processing too long by requesting Xen to change the L3/L4 page tables, in order to trigger a denial of service.
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computer vulnerability bulletin CVE-2017-5753 CVE-2018-3693

Processors: memory reading via Spectre Bounds Check

Synthesis of the vulnerability

A local attacker can access to the kernel memory, in order to read sensitive information.
Impacted products: SNS, iOS by Apple, Mac OS X, Blue Coat CAS, Cisco ASR, Cisco Catalyst, Nexus by Cisco, NX-OS, Cisco Router, Cisco UCS, XenServer, Debian, ConnectPort TSx, Avamar, ExtremeXOS, Summit, BIG-IP Hardware, TMOS, Fedora, FortiAnalyzer, FortiGate, FortiManager, FortiOS, FreeBSD, Android OS, Chrome, AIX, IBM i, QRadar SIEM, Juniper J-Series, Junos OS, Junos Space, NSMXpress, Linux, McAfee Email Gateway, McAfee NSM, McAfee NTBA, McAfee Web Gateway, Meinberg NTP Server, Edge, IE, SQL Server, Windows 10, Windows 2008 R0, Windows 2008 R2, Windows 2012, Windows 2016, Windows 7, Windows 8, Windows (platform) ~ not comprehensive, Windows RT, Firefox, openSUSE Leap, Opera, Oracle Communications, Solaris, RealPresence Collaboration Server, RealPresence Distributed Media Application, RealPresence Resource Manager, RHEL, SIMATIC, Sonus SBC, SUSE Linux Enterprise Desktop, SLES, Symantec Content Analysis, Synology DSM, Synology DS***, Synology RS***, Ubuntu, Unix (platform) ~ not comprehensive, ESXi, vCenter Server, VMware vSphere, VMware vSphere Hypervisor, VMware Workstation, Xen.
Severity: 1/4.
Consequences: data reading.
Provenance: user shell.
Number of vulnerabilities in this bulletin: 2.
Creation date: 05/01/2018.
Revision date: 21/02/2018.
Identifiers: 2016636, 519675, ADV180002, bulletinjan2018, bulletinjul2018, CERTFR-2018-AVI-004, CERTFR-2018-AVI-005, CERTFR-2018-AVI-006, CERTFR-2018-AVI-008, CERTFR-2018-AVI-009, CERTFR-2018-AVI-012, CERTFR-2018-AVI-013, CERTFR-2018-AVI-014, CERTFR-2018-AVI-016, CERTFR-2018-AVI-027, CERTFR-2018-AVI-029, CERTFR-2018-AVI-032, CERTFR-2018-AVI-048, CERTFR-2018-AVI-049, CERTFR-2018-AVI-077, CERTFR-2018-AVI-079, CERTFR-2018-AVI-094, CERTFR-2018-AVI-114, CERTFR-2018-AVI-124, CERTFR-2018-AVI-134, CERTFR-2018-AVI-208, CERTFR-2018-AVI-256, CERTFR-2018-AVI-365, CERTFR-2018-AVI-584, CERTFR-2019-AVI-042, CERTFR-2019-AVI-052, CERTFR-2019-AVI-131, CERTFR-2019-AVI-242, CERTFR-2019-AVI-361, cisco-sa-20180104-cpusidechannel, cpuapr2018, cpuapr2019, CTX231390, CTX231399, CVE-2017-5753, CVE-2018-3693, DLA-1422-1, DLA-1422-2, DLA-1423-1, DLA-1424-1, DLA-1434-1, DLA-1731-1, DLA-1731-2, DSA-2018-049, DSA-4187-1, DSA-4188-1, FEDORA-2018-21a7ad920c, FEDORA-2018-276558ff6f, FEDORA-2018-6b319763ab, FEDORA-2018-7e17849364, FEDORA-2018-e6fe35524d, FEDORA-2018-fb582aabcc, FG-IR-18-002, HT208397, HT208401, ibm10742755, INTEL-OSS-10002, JSA10842, JSA10873, JSA10917, K91229003, MBGSA-1801, MFSA-2018-01, N1022433, nas8N1022433, openSUSE-SU-2018:0022-1, openSUSE-SU-2018:0023-1, openSUSE-SU-2018:0326-1, openSUSE-SU-2018:0459-1, openSUSE-SU-2018:1623-1, openSUSE-SU-2018:2119-1, RHSA-2018:0007-01, RHSA-2018:0008-01, RHSA-2018:0009-01, RHSA-2018:0010-01, RHSA-2018:0011-01, RHSA-2018:0012-01, RHSA-2018:0013-01, RHSA-2018:0014-01, RHSA-2018:0015-01, RHSA-2018:0016-01, RHSA-2018:0017-01, RHSA-2018:0018-01, RHSA-2018:0020-01, RHSA-2018:0021-01, RHSA-2018:0022-01, RHSA-2018:0023-01, RHSA-2018:0024-01, RHSA-2018:0025-01, RHSA-2018:0026-01, RHSA-2018:0027-01, RHSA-2018:0028-01, RHSA-2018:0029-01, RHSA-2018:0030-01, RHSA-2018:0031-01, RHSA-2018:0032-01, RHSA-2018:0034-01, RHSA-2018:0035-01, RHSA-2018:0036-01, RHSA-2018:0037-01, RHSA-2018:0038-01, RHSA-2018:0039-01, RHSA-2018:0040-01, RHSA-2018:0053-01, RHSA-2018:0093-01, RHSA-2018:0094-01, RHSA-2018:0103-01, RHSA-2018:0104-01, RHSA-2018:0105-01, RHSA-2018:0106-01, RHSA-2018:0107-01, RHSA-2018:0108-01, RHSA-2018:0109-01, RHSA-2018:0110-01, RHSA-2018:0111-01, RHSA-2018:0112-01, RHSA-2018:0182-01, RHSA-2018:0292-01, RHSA-2018:0464-01, RHSA-2018:0496-01, RHSA-2018:0512-01, RHSA-2018:1129-01, RHSA-2018:1196-01, RHSA-2019:1946-01, SA161, SB10226, Spectre, spectre_meltdown_advisory, SSA-168644, SSA-505225, STORM-2018-001, SUSE-SU-2018:0011-1, SUSE-SU-2018:0012-1, SUSE-SU-2018:0031-1, SUSE-SU-2018:0040-1, SUSE-SU-2018:0069-1, SUSE-SU-2018:0113-1, SUSE-SU-2018:0114-1, SUSE-SU-2018:0115-1, SUSE-SU-2018:0131-1, SUSE-SU-2018:0171-1, SUSE-SU-2018:0219-1, SUSE-SU-2018:0438-1, SUSE-SU-2018:0472-1, SUSE-SU-2018:0601-1, SUSE-SU-2018:0609-1, SUSE-SU-2018:0638-1, SUSE-SU-2018:0678-1, SUSE-SU-2018:0909-1, SUSE-SU-2018:1368-1, SUSE-SU-2018:1376-1, SUSE-SU-2018:1603-1, SUSE-SU-2018:1658-1, SUSE-SU-2018:1699-1, SUSE-SU-2018:2150-1, SUSE-SU-2018:2528-1, SUSE-SU-2019:0222-1, SUSE-SU-2019:0765-1, SUSE-SU-2019:1550-1, Synology-SA-18:01, USN-3516-1, USN-3521-1, USN-3530-1, USN-3541-1, USN-3541-2, USN-3542-1, USN-3542-2, USN-3549-1, USN-3580-1, USN-3597-1, USN-3597-2, VIGILANCE-VUL-24948, VMSA-2018-0002, VMSA-2018-0004, VMSA-2018-0004.2, VMSA-2018-0004.3, VMSA-2018-0007, VN-2018-001, VN-2018-002, VU#584653, XSA-254.

Description of the vulnerability

A local attacker can monitor the performances of its process, in order to get information about the data used for computing by the processor.
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computer vulnerability note CVE-2017-5715

Processors: memory reading via Spectre Branch Target

Synthesis of the vulnerability

A local attacker can monitor the performances of its process, in order to get information about the data used for computing by the processor.
Impacted products: SNS, iOS by Apple, Mac OS X, Blue Coat CAS, Cisco ASR, Cisco Catalyst, Nexus by Cisco, NX-OS, Cisco Router, Cisco UCS, XenServer, Debian, ConnectPort TSx, Avamar, ExtremeXOS, Summit, BIG-IP Hardware, TMOS, Fedora, FortiAnalyzer, FortiGate, FortiManager, FortiOS, FreeBSD, Android OS, Chrome, AIX, IBM i, QRadar SIEM, Juniper J-Series, Junos OS, Junos Space, NSMXpress, Linux, McAfee Email Gateway, McAfee NSM, McAfee NTBA, McAfee Web Gateway, Meinberg NTP Server, Edge, IE, SQL Server, Windows 10, Windows 2008 R0, Windows 2008 R2, Windows 2012, Windows 2016, Windows 7, Windows 8, Windows (platform) ~ not comprehensive, Windows RT, Firefox, openSUSE Leap, Opera, Oracle Communications, WebLogic, pfSense, RealPresence Collaboration Server, RealPresence Distributed Media Application, RealPresence Resource Manager, RHEL, SIMATIC, Slackware, Sonus SBC, SUSE Linux Enterprise Desktop, SLES, Symantec Content Analysis, Synology DSM, Synology DS***, Synology RS***, Ubuntu, Unix (platform) ~ not comprehensive, ESXi, VMware vSphere, VMware vSphere Hypervisor, VMware Workstation, Xen.
Severity: 1/4.
Consequences: data reading.
Provenance: user shell.
Creation date: 05/01/2018.
Revision date: 07/02/2018.
Identifiers: 2016636, 519675, ADV180002, CERTFR-2018-AVI-004, CERTFR-2018-AVI-005, CERTFR-2018-AVI-006, CERTFR-2018-AVI-008, CERTFR-2018-AVI-009, CERTFR-2018-AVI-012, CERTFR-2018-AVI-013, CERTFR-2018-AVI-014, CERTFR-2018-AVI-016, CERTFR-2018-AVI-028, CERTFR-2018-AVI-029, CERTFR-2018-AVI-030, CERTFR-2018-AVI-032, CERTFR-2018-AVI-040, CERTFR-2018-AVI-048, CERTFR-2018-AVI-049, CERTFR-2018-AVI-075, CERTFR-2018-AVI-079, CERTFR-2018-AVI-080, CERTFR-2018-AVI-083, CERTFR-2018-AVI-094, CERTFR-2018-AVI-104, CERTFR-2018-AVI-118, CERTFR-2018-AVI-119, CERTFR-2018-AVI-124, CERTFR-2018-AVI-134, CERTFR-2018-AVI-161, CERTFR-2018-AVI-170, CERTFR-2018-AVI-196, CERTFR-2018-AVI-206, CERTFR-2018-AVI-208, CERTFR-2018-AVI-256, CERTFR-2019-AVI-242, cisco-sa-20180104-cpusidechannel, cpujul2019, CTX231390, CTX231399, CVE-2017-5715, DLA-1349-1, DLA-1362-1, DLA-1369-1, DLA-1422-1, DLA-1422-2, DLA-1497-1, DLA-1506-1, DSA-2018-049, DSA-4120-1, DSA-4120-2, DSA-4179-1, DSA-4187-1, DSA-4188-1, DSA-4213-1, FEDORA-2018-21a7ad920c, FEDORA-2018-276558ff6f, FEDORA-2018-6b319763ab, FEDORA-2018-7e17849364, FEDORA-2018-e6fe35524d, FEDORA-2018-fb582aabcc, FG-IR-18-002, FreeBSD-SA-18:03.speculative_execution, HT208397, HT208401, JSA10842, JSA10873, K91229003, LSN-0035-1, MBGSA-1801, MFSA-2018-01, N1022433, nas8N1022433, openSUSE-SU-2018:0013-1, openSUSE-SU-2018:0022-1, openSUSE-SU-2018:0023-1, openSUSE-SU-2018:0026-1, openSUSE-SU-2018:0030-1, openSUSE-SU-2018:0059-1, openSUSE-SU-2018:0066-1, openSUSE-SU-2018:0187-1, openSUSE-SU-2018:0326-1, openSUSE-SU-2018:0408-1, openSUSE-SU-2018:0459-1, openSUSE-SU-2018:0710-1, openSUSE-SU-2018:0745-1, openSUSE-SU-2018:0780-1, openSUSE-SU-2018:0939-1, openSUSE-SU-2018:1502-1, openSUSE-SU-2018:1623-1, openSUSE-SU-2018:1631-1, openSUSE-SU-2018:2119-1, openSUSE-SU-2018:2237-1, openSUSE-SU-2018:2524-1, RHSA-2018:0007-01, RHSA-2018:0008-01, RHSA-2018:0009-01, RHSA-2018:0010-01, RHSA-2018:0011-01, RHSA-2018:0012-01, RHSA-2018:0013-01, RHSA-2018:0014-01, RHSA-2018:0015-01, RHSA-2018:0016-01, RHSA-2018:0017-01, RHSA-2018:0018-01, RHSA-2018:0020-01, RHSA-2018:0021-01, RHSA-2018:0022-01, RHSA-2018:0023-01, RHSA-2018:0024-01, RHSA-2018:0025-01, RHSA-2018:0026-01, RHSA-2018:0027-01, RHSA-2018:0028-01, RHSA-2018:0029-01, RHSA-2018:0030-01, RHSA-2018:0031-01, RHSA-2018:0032-01, RHSA-2018:0034-01, RHSA-2018:0035-01, RHSA-2018:0036-01, RHSA-2018:0037-01, RHSA-2018:0038-01, RHSA-2018:0039-01, RHSA-2018:0040-01, RHSA-2018:0053-01, RHSA-2018:0093-01, RHSA-2018:0094-01, RHSA-2018:0103-01, RHSA-2018:0104-01, RHSA-2018:0105-01, RHSA-2018:0106-01, RHSA-2018:0107-01, RHSA-2018:0108-01, RHSA-2018:0109-01, RHSA-2018:0110-01, RHSA-2018:0111-01, RHSA-2018:0112-01, RHSA-2018:0182-01, RHSA-2018:0292-01, RHSA-2018:0496-01, RHSA-2018:0512-01, RHSA-2018:1129-01, RHSA-2018:1196-01, SA161, SB10226, Spectre, spectre_meltdown_advisory, SSA-168644, SSA:2018-016-01, SSA:2018-037-01, STORM-2018-001, SUSE-SU-2018:0006-1, SUSE-SU-2018:0007-1, SUSE-SU-2018:0008-1, SUSE-SU-2018:0009-1, SUSE-SU-2018:0011-1, SUSE-SU-2018:0012-1, SUSE-SU-2018:0019-1, SUSE-SU-2018:0020-1, SUSE-SU-2018:0031-1, SUSE-SU-2018:0036-1, SUSE-SU-2018:0039-1, SUSE-SU-2018:0040-1, SUSE-SU-2018:0041-1, SUSE-SU-2018:0051-1, SUSE-SU-2018:0056-1, SUSE-SU-2018:0067-1, SUSE-SU-2018:0068-1, SUSE-SU-2018:0069-1, SUSE-SU-2018:0113-1, SUSE-SU-2018:0114-1, SUSE-SU-2018:0115-1, SUSE-SU-2018:0131-1, SUSE-SU-2018:0171-1, SUSE-SU-2018:0219-1, SUSE-SU-2018:0383-1, SUSE-SU-2018:0416-1, SUSE-SU-2018:0437-1, SUSE-SU-2018:0438-1, SUSE-SU-2018:0472-1, SUSE-SU-2018:0525-1, SUSE-SU-2018:0555-1, SUSE-SU-2018:0601-1, SUSE-SU-2018:0609-1, SUSE-SU-2018:0638-1, SUSE-SU-2018:0660-1, SUSE-SU-2018:0678-1, SUSE-SU-2018:0705-1, SUSE-SU-2018:0708-1, SUSE-SU-2018:0762-1, SUSE-SU-2018:0831-1, SUSE-SU-2018:0838-1, SUSE-SU-2018:0841-1, SUSE-SU-2018:0861-1, SUSE-SU-2018:0909-1, SUSE-SU-2018:0920-1, SUSE-SU-2018:0986-1, SUSE-SU-2018:1077-1, SUSE-SU-2018:1080-1, SUSE-SU-2018:1308-1, SUSE-SU-2018:1363-1, SUSE-SU-2018:1368-1, SUSE-SU-2018:1376-1, SUSE-SU-2018:1386-1, SUSE-SU-2018:1498-1, SUSE-SU-2018:1503-1, SUSE-SU-2018:1567-1, SUSE-SU-2018:1570-1, SUSE-SU-2018:1571-1, SUSE-SU-2018:1603-1, SUSE-SU-2018:1658-1, SUSE-SU-2018:1661-1, SUSE-SU-2018:1699-1, SUSE-SU-2018:1759-1, SUSE-SU-2018:1784-1, SUSE-SU-2018:2082-1, SUSE-SU-2018:2141-1, SUSE-SU-2018:2189-1, SUSE-SU-2018:2528-1, SUSE-SU-2018:2631-1, SUSE-SU-2019:13999-1, Synology-SA-18:01, USN-3516-1, USN-3530-1, USN-3531-1, USN-3531-2, USN-3531-3, USN-3541-1, USN-3541-2, USN-3549-1, USN-3560-1, USN-3561-1, USN-3580-1, USN-3581-1, USN-3581-2, USN-3581-3, USN-3582-1, USN-3582-2, USN-3594-1, USN-3597-1, USN-3597-2, USN-3620-1, USN-3620-2, USN-3690-1, USN-3690-2, VIGILANCE-VUL-24949, VMSA-2018-0002, VMSA-2018-0004, VMSA-2018-0004.2, VMSA-2018-0004.3, VN-2018-001, VN-2018-002, VU#584653, XSA-254.

Description of the vulnerability

A local attacker can monitor the performances of its process, in order to get information about the data used for computing by the processor.
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vulnerability bulletin CVE-2017-5754

Intel Processors: memory reading via Meltdown

Synthesis of the vulnerability

When the system uses an Intel processor, a local attacker can access to the kernel memory, in order to read sensitive information.
Impacted products: SNS, iOS by Apple, iPhone, Mac OS X, Blue Coat CAS, Cisco ASR, Cisco Catalyst, Nexus by Cisco, NX-OS, Cisco Router, Cisco UCS, XenServer, Debian, Avamar, ExtremeXOS, Summit, BIG-IP Hardware, TMOS, FortiAnalyzer, FortiGate, FortiManager, FortiOS, FreeBSD, Android OS, AIX, IBM i, QRadar SIEM, Juniper J-Series, Junos OS, Junos Space, NSMXpress, Linux, McAfee Email Gateway, McAfee NSM, McAfee NTBA, McAfee Web Gateway, Meinberg NTP Server, Edge, IE, SQL Server, Windows 10, Windows 2008 R0, Windows 2008 R2, Windows 2012, Windows 2016, Windows 7, Windows 8, Windows (platform) ~ not comprehensive, Windows RT, OpenBSD, openSUSE Leap, Oracle Communications, pfSense, RealPresence Collaboration Server, RealPresence Distributed Media Application, RealPresence Resource Manager, RHEL, SIMATIC, Slackware, Sonus SBC, SUSE Linux Enterprise Desktop, SLES, Symantec Content Analysis, Synology DSM, Synology DS***, Synology RS***, Ubuntu, Unix (platform) ~ not comprehensive, vCenter Server, Xen.
Severity: 2/4.
Consequences: data reading.
Provenance: user shell.
Creation date: 03/01/2018.
Revision date: 05/01/2018.
Identifiers: 2016636, 519675, ADV180002, CERTFR-2018-ALE-001, CERTFR-2018-AVI-004, CERTFR-2018-AVI-005, CERTFR-2018-AVI-009, CERTFR-2018-AVI-012, CERTFR-2018-AVI-014, CERTFR-2018-AVI-017, CERTFR-2018-AVI-018, CERTFR-2018-AVI-029, CERTFR-2018-AVI-048, CERTFR-2018-AVI-049, CERTFR-2018-AVI-077, CERTFR-2018-AVI-079, CERTFR-2018-AVI-114, CERTFR-2018-AVI-124, CERTFR-2018-AVI-134, CERTFR-2018-AVI-208, CERTFR-2018-AVI-225, CERTFR-2019-AVI-242, cisco-sa-20180104-cpusidechannel, cpuapr2019, CTX231390, CTX231399, CTX234679, CVE-2017-5754, DLA-1232-1, DLA-1349-1, DSA-2018-049, DSA-4078-1, DSA-4082-1, DSA-4120-1, DSA-4120-2, DSA-4179-1, FG-IR-18-002, FreeBSD-SA-18:03.speculative_execution, HT208331, HT208334, HT208394, HT208465, JSA10842, JSA10873, K91229003, MBGSA-1801, Meltdown, N1022433, nas8N1022433, openSUSE-SU-2018:0022-1, openSUSE-SU-2018:0023-1, openSUSE-SU-2018:0326-1, openSUSE-SU-2018:0459-1, openSUSE-SU-2018:1623-1, RHSA-2018:0007-01, RHSA-2018:0008-01, RHSA-2018:0009-01, RHSA-2018:0010-01, RHSA-2018:0011-01, RHSA-2018:0012-01, RHSA-2018:0013-01, RHSA-2018:0014-01, RHSA-2018:0015-01, RHSA-2018:0016-01, RHSA-2018:0017-01, RHSA-2018:0018-01, RHSA-2018:0020-01, RHSA-2018:0021-01, RHSA-2018:0022-01, RHSA-2018:0023-01, RHSA-2018:0024-01, RHSA-2018:0025-01, RHSA-2018:0026-01, RHSA-2018:0027-01, RHSA-2018:0028-01, RHSA-2018:0029-01, RHSA-2018:0030-01, RHSA-2018:0031-01, RHSA-2018:0032-01, RHSA-2018:0034-01, RHSA-2018:0035-01, RHSA-2018:0036-01, RHSA-2018:0037-01, RHSA-2018:0038-01, RHSA-2018:0039-01, RHSA-2018:0040-01, RHSA-2018:0053-01, RHSA-2018:0093-01, RHSA-2018:0094-01, RHSA-2018:0103-01, RHSA-2018:0104-01, RHSA-2018:0105-01, RHSA-2018:0106-01, RHSA-2018:0107-01, RHSA-2018:0108-01, RHSA-2018:0109-01, RHSA-2018:0110-01, RHSA-2018:0111-01, RHSA-2018:0112-01, RHSA-2018:0182-01, RHSA-2018:0292-01, RHSA-2018:0464-01, RHSA-2018:0496-01, RHSA-2018:0512-01, RHSA-2018:1129-01, RHSA-2018:1196-01, SA161, SB10226, spectre_meltdown_advisory, SSA-168644, SSA:2018-016-01, SSA:2018-037-01, STORM-2018-001, SUSE-SU-2018:0010-1, SUSE-SU-2018:0011-1, SUSE-SU-2018:0012-1, SUSE-SU-2018:0031-1, SUSE-SU-2018:0040-1, SUSE-SU-2018:0069-1, SUSE-SU-2018:0115-1, SUSE-SU-2018:0131-1, SUSE-SU-2018:0171-1, SUSE-SU-2018:0219-1, SUSE-SU-2018:0438-1, SUSE-SU-2018:0472-1, SUSE-SU-2018:0601-1, SUSE-SU-2018:0609-1, SUSE-SU-2018:0638-1, SUSE-SU-2018:0678-1, SUSE-SU-2018:0909-1, SUSE-SU-2018:1603-1, SUSE-SU-2018:1658-1, SUSE-SU-2018:1699-1, SUSE-SU-2018:2528-1, Synology-SA-18:01, USN-3516-1, USN-3522-1, USN-3522-2, USN-3522-3, USN-3522-4, USN-3523-1, USN-3523-2, USN-3523-3, USN-3524-1, USN-3524-2, USN-3525-1, USN-3540-1, USN-3540-2, USN-3541-1, USN-3541-2, USN-3583-1, USN-3583-2, USN-3597-1, USN-3597-2, VIGILANCE-VUL-24933, VMSA-2018-0007, VN-2018-001, VN-2018-002, VU#584653, XSA-254.

Description of the vulnerability

When the system uses an Intel processor, a local attacker can access to the kernel memory, in order to read sensitive information.
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vulnerability 24800

Citrix XenServer: denial of service

Synthesis of the vulnerability

An attacker, inside a guest system, can generate a fatal error of Citrix XenServer, in order to trigger a denial of service on the host system.
Impacted products: XenServer.
Severity: 1/4.
Consequences: denial of service on server, denial of service on service.
Provenance: privileged shell.
Creation date: 18/12/2017.
Identifiers: CERTFR-2017-AVI-476, CTX230624, VIGILANCE-VUL-24800.

Description of the vulnerability

An attacker, inside a guest system, can generate a fatal error of Citrix XenServer, in order to trigger a denial of service on the host system.
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vulnerability CVE-2017-17565

Xen: denial of service via X86 Log-dirty

Synthesis of the vulnerability

An attacker, inside a guest system, can generate a fatal error via X86 Log-dirty of Xen, in order to trigger a denial of service on the host system.
Impacted products: XenServer, Debian, Fedora, openSUSE Leap, SUSE Linux Enterprise Desktop, SLES, Xen.
Severity: 1/4.
Consequences: denial of service on server, denial of service on service.
Provenance: user shell.
Creation date: 12/12/2017.
Identifiers: CERTFR-2017-AVI-460, CERTFR-2018-AVI-171, CTX232096, CVE-2017-17565, DLA-1230-1, DLA-1549-1, DSA-4112-1, FEDORA-2017-16a414b3c5, FEDORA-2017-5945560816, openSUSE-SU-2018:0459-1, SUSE-SU-2018:0438-1, SUSE-SU-2018:0472-1, SUSE-SU-2018:0601-1, SUSE-SU-2018:0609-1, SUSE-SU-2018:0638-1, SUSE-SU-2018:0678-1, VIGILANCE-VUL-24740, XSA-251.

Description of the vulnerability

An attacker, inside a guest system, can generate a fatal error via X86 Log-dirty of Xen, in order to trigger a denial of service on the host system.
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computer vulnerability note CVE-2017-17564

Xen: privilege escalation via X86 Shadow Mode Refcount Error

Synthesis of the vulnerability

An attacker, inside a guest system, can bypass restrictions via X86 Shadow Mode Refcount Error of Xen, in order to escalate his privileges on the host system.
Impacted products: XenServer, Debian, Fedora, openSUSE Leap, SUSE Linux Enterprise Desktop, SLES, Xen.
Severity: 2/4.
Consequences: administrator access/rights, privileged access/rights.
Provenance: user shell.
Creation date: 12/12/2017.
Identifiers: CERTFR-2017-AVI-460, CERTFR-2018-AVI-171, CTX232096, CVE-2017-17564, DLA-1230-1, DLA-1549-1, DSA-4112-1, FEDORA-2017-16a414b3c5, FEDORA-2017-5945560816, openSUSE-SU-2018:0459-1, SUSE-SU-2018:0438-1, SUSE-SU-2018:0472-1, SUSE-SU-2018:0601-1, SUSE-SU-2018:0609-1, SUSE-SU-2018:0638-1, SUSE-SU-2018:0678-1, VIGILANCE-VUL-24739, XSA-250.

Description of the vulnerability

An attacker, inside a guest system, can bypass restrictions via X86 Shadow Mode Refcount Error of Xen, in order to escalate his privileges on the host system.
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computer vulnerability bulletin CVE-2017-17563

Xen: privilege escalation via X86 Shadow Mode Refcount

Synthesis of the vulnerability

An attacker, inside a guest system, can bypass restrictions via X86 Shadow Mode Refcount of Xen, in order to escalate his privileges on the host system.
Impacted products: XenServer, Debian, Fedora, openSUSE Leap, SUSE Linux Enterprise Desktop, SLES, Xen.
Severity: 2/4.
Consequences: administrator access/rights, privileged access/rights.
Provenance: user shell.
Creation date: 12/12/2017.
Identifiers: CERTFR-2017-AVI-460, CERTFR-2018-AVI-171, CTX232096, CVE-2017-17563, DLA-1230-1, DLA-1549-1, DSA-4112-1, FEDORA-2017-16a414b3c5, FEDORA-2017-5945560816, openSUSE-SU-2018:0459-1, SUSE-SU-2018:0438-1, SUSE-SU-2018:0472-1, SUSE-SU-2018:0601-1, SUSE-SU-2018:0609-1, SUSE-SU-2018:0638-1, SUSE-SU-2018:0678-1, VIGILANCE-VUL-24738, XSA-249.

Description of the vulnerability

An attacker, inside a guest system, can bypass restrictions via X86 Shadow Mode Refcount of Xen, in order to escalate his privileges on the host system.
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computer vulnerability announce CVE-2017-17566

Xen: privilege escalation via X86 PV Guests

Synthesis of the vulnerability

An attacker, inside a guest system, can bypass restrictions via X86 PV Guests of Xen, in order to escalate his privileges on the host system.
Impacted products: XenServer, Debian, Fedora, openSUSE Leap, SUSE Linux Enterprise Desktop, SLES, Xen.
Severity: 2/4.
Consequences: administrator access/rights, privileged access/rights.
Provenance: user shell.
Creation date: 12/12/2017.
Identifiers: CERTFR-2017-AVI-460, CERTFR-2018-AVI-171, CTX232096, CVE-2017-17566, DLA-1230-1, DLA-1549-1, DSA-4112-1, FEDORA-2017-16a414b3c5, FEDORA-2017-5945560816, openSUSE-SU-2018:0459-1, SUSE-SU-2018:0438-1, SUSE-SU-2018:0472-1, SUSE-SU-2018:0601-1, SUSE-SU-2018:0609-1, SUSE-SU-2018:0638-1, SUSE-SU-2018:0678-1, VIGILANCE-VUL-24737, XSA-248.

Description of the vulnerability

An attacker, inside a guest system, can bypass restrictions via X86 PV Guests of Xen, in order to escalate his privileges on the host system.
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