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vulnerability CVE-2016-0702 CVE-2016-0705 CVE-2016-0797

OpenSSL: seven vulnerabilities

Synthesis of the vulnerability

An attacker can use several vulnerabilities of OpenSSL.
Impacted software: Blue Coat CAS, ProxyAV, ProxySG par Blue Coat, Brocade Network Advisor, Brocade vTM, Cisco ASR, Cisco ATA, Cisco AnyConnect Secure Mobility Client, Cisco ACE, ASA, IOS by Cisco, IOS XE Cisco, Nexus by Cisco, NX-OS, Cisco Prime Access Registrar, Prime Collaboration Assurance, Prime Collaboration Manager, Prime Infrastructure, Cisco Prime LMS, Cisco PRSM, Cisco CUCM, Cisco Unified CCX, Cisco IP Phone, Cisco MeetingPlace, Cisco Wireless IP Phone, Cisco WSA, Cisco Wireless Controller, XenServer, Debian, PowerPath, ExtremeXOS, BIG-IP Hardware, TMOS, Fedora, FileZilla Server, FreeBSD, HP Switch, AIX, Domino, Notes, IRAD, Rational ClearCase, QRadar SIEM, Tivoli Storage Manager, Tivoli Workload Scheduler, WebSphere AS Traditional, WebSphere MQ, Juniper J-Series, Junos OS, Junos Space, Juniper Network Connect, NSM Central Manager, NSMXpress, McAfee Web Gateway, Meinberg NTP Server, Data ONTAP 7-Mode, Snap Creator Framework, NetScreen Firewall, ScreenOS, Nodejs Core, OpenSSL, openSUSE, openSUSE Leap, Solaris, Palo Alto Firewall PA***, PAN-OS, Pulse Connect Secure, Pulse Secure Client, Pulse Secure SBR, Puppet, RHEL, JBoss EAP by Red Hat, ROX, SAS Add-in for Microsoft Office, SAS Analytics Pro, Base SAS Software, SAS Enterprise BI Server, SAS Enterprise Guide, SAS Management Console, SAS OLAP Server, SAS SAS/ACCESS, SAS SAS/AF, SAS SAS/CONNECT, SAS SAS/EIS, SAS SAS/ETS, SAS SAS/FSP, SAS SAS/GRAPH, SAS SAS/IML, SAS SAS/OR, SAS SAS/STAT, SAS SAS/Web Report Studio, Slackware, Splunk Enterprise, stunnel, SUSE Linux Enterprise Desktop, SLES, Nessus, Ubuntu, VxWorks, WinSCP, X2GoClient.
Severity of this computer vulnerability: 2/4.
Consequences of an attack: data reading, data creation/edition.
Attacker's origin: internet client.
Number of vulnerabilities in this bulletin: 7.
Creation date: 01/03/2016.
Revision date: 07/03/2016.
Références of this announce: 000008897, 046178, 046208, 1979498, 1979602, 1987779, 1993210, 2003480, 2003620, 2003673, 2012827, 2013020, 2014202, 2014651, 2014669, 2015080, 2016039, 7043086, 9010066, 9010067, 9010072, BSA-2016-004, bulletinapr2016, bulletinjan2016, CERTFR-2016-AVI-076, CERTFR-2016-AVI-080, cisco-sa-20160302-openssl, CTX208403, CVE-2016-0702, CVE-2016-0705, CVE-2016-0797, CVE-2016-0798, CVE-2016-0799, CVE-2016-0800, CVE-2016-2842, DSA-3500-1, ESA-2016-080, FEDORA-2016-2802690366, FEDORA-2016-e1234b65a2, FEDORA-2016-e6807b3394, FreeBSD-SA-16:12.openssl, HPESBHF03741, ibm10732391, ibm10733905, ibm10738249, ibm10738401, JSA10722, JSA10759, K22334603, K52349521, K93122894, MBGSA-1602, NTAP-20160301-0001, NTAP-20160303-0001, NTAP-20160321-0001, openSUSE-SU-2016:0627-1, openSUSE-SU-2016:0628-1, openSUSE-SU-2016:0637-1, openSUSE-SU-2016:0638-1, openSUSE-SU-2016:0640-1, openSUSE-SU-2016:0720-1, openSUSE-SU-2016:1566-1, openSUSE-SU-2017:1211-1, openSUSE-SU-2017:1212-1, PAN-SA-2016-0020, PAN-SA-2016-0028, PAN-SA-2016-0030, RHSA-2016:0301-01, RHSA-2016:0302-01, RHSA-2016:0303-01, RHSA-2016:0304-01, RHSA-2016:0305-01, RHSA-2016:0306-01, RHSA-2016:0372-01, RHSA-2016:0445-01, RHSA-2016:0446-01, RHSA-2016:0490-01, RHSA-2016:1519-01, RHSA-2016:2073-01, RHSA-2018:2568-01, RHSA-2018:2575-01, SA117, SA40168, SB10156, SOL22334603, SOL40524634, SOL52349521, SOL79215841, SOL93122894, SSA:2016-062-02, SSA-623229, SUSE-SU-2016:0617-1, SUSE-SU-2016:0620-1, SUSE-SU-2016:0621-1, SUSE-SU-2016:0624-1, SUSE-SU-2016:0631-1, SUSE-SU-2016:0641-1, SUSE-SU-2016:0678-1, SUSE-SU-2018:2839-1, SUSE-SU-2018:3082-1, TNS-2016-03, USN-2914-1, VIGILANCE-VUL-19060, VN-2016-004, VU#583776.

Description of the vulnerability

Several vulnerabilities were announced in OpenSSL.

An attacker can act as a Man-in-the-Middle on a server supporting SSLv2 and EXPORT ciphers (this configuration is considered as weak since several years), in order to read or write data in the session. [severity:2/4; CVE-2016-0800, VU#583776]

An attacker can force the usage of a freed memory area when OpenSSL processes a DSA private key (this scenario is rare), in order to trigger a denial of service, and possibly to run code. [severity:2/4; CVE-2016-0705]

An attacker can read a memory fragment via SRP_VBASE_get_by_user, in order to obtain sensitive information. [severity:1/4; CVE-2016-0798]

An attacker can force a NULL pointer to be dereferenced in BN_hex2bn(), in order to trigger a denial of service. [severity:1/4; CVE-2016-0797]

An attacker can use a very large string (size INT_MAX), to generate a memory corruption in the BIO_*printf() functions, in order to trigger a denial of service, and possibly to run code. [severity:2/4; CVE-2016-0799]

An attacker can use cache conflicts on Intel Sandy-Bridge, in order to obtain RSA keys. [severity:1/4; CVE-2016-0702]

An attacker can use a very large string (size INT_MAX), to generate a memory corruption in the internal doapr_outch() function, in order to trigger a denial of service, and possibly to run code. [severity:2/4; CVE-2016-2842]
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