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computer vulnerability note CVE-2014-7186 CVE-2014-7187

bash: two denial of service

Synthesis of the vulnerability

An attacker can use several vulnerabilities of bash.
Impacted systems: GAiA, CheckPoint IP Appliance, IPSO, SecurePlatform, CheckPoint Security Appliance, CheckPoint Smart-1, CheckPoint VSX-1, XenServer, Clearswift Email Gateway, Clearswift Web Gateway, Avamar, EMC CAVA, EMC CEE, EMC CEPA, Celerra FAST, Celerra NS, Celerra NX4, EMC CMDCE, Connectrix Switch, NetWorker, PowerPath, Unisphere EMC, VNX Operating Environment, VNX Series, BIG-IP Hardware, TMOS, HP Operations, AIX, IVE OS, Junos Space, MAG Series by Juniper, NSM Central Manager, NSMXpress, Juniper SA, Juniper UAC, McAfee Email and Web Security, McAfee Email Gateway, McAfee MOVE AntiVirus, McAfee NSP, McAfee NGFW, McAfee Web Gateway, openSUSE, Solaris, RealPresence Collaboration Server, RealPresence Distributed Media Application, Polycom VBP, RHEL, RSA Authentication Manager, ROX, RuggedSwitch, Stonesoft NGFW/VPN, SUSE Linux Enterprise Desktop, SLES, Ubuntu, Unix (platform) ~ not comprehensive, ESX, vCenter Server, VMware vSphere.
Severity of this alert: 1/4.
Consequences of an intrusion: denial of service on service.
Pirate's origin: document.
Number of vulnerabilities in this bulletin: 2.
Creation date: 29/09/2014.
Références of this alert: 193355, 193866, 194029, 194064, 194669, 480931, c04475942, c04479492, CERTFR-2014-AVI-403, CERTFR-2014-AVI-415, CERTFR-2014-AVI-480, CTX200217, CTX200223, CVE-2014-7186, CVE-2014-7187, ESA-2014-111, ESA-2014-123, ESA-2014-124, ESA-2014-125, ESA-2014-126, ESA-2014-127, ESA-2014-128, ESA-2014-133, ESA-2014-136, ESA-2014-150, ESA-2014-151, ESA-2014-152, ESA-2014-162, HPSBGN03138, HPSBMU03144, JSA10648, JSA10661, MDVSA-2015:164, openSUSE-SU-2014:1229-1, openSUSE-SU-2014:1242-1, openSUSE-SU-2014:1248-1, openSUSE-SU-2014:1308-1, openSUSE-SU-2014:1310-1, RHSA-2014:1311-01, RHSA-2014:1312-01, RHSA-2014:1354-01, RHSA-2014:1865-01, SB10085, sk102673, SOL15629, SSA-860967, SUSE-SU-2014:1247-1, SUSE-SU-2014:1247-2, T1021272, USN-2364-1, VIGILANCE-VUL-15419, VMSA-2014-0010, VMSA-2014-0010.10, VMSA-2014-0010.11, VMSA-2014-0010.12, VMSA-2014-0010.13, VMSA-2014-0010.2, VMSA-2014-0010.4, VMSA-2014-0010.7, VMSA-2014-0010.8, VMSA-2014-0010.9.

Description of the vulnerability

Several vulnerabilities were announced in bash.

An attacker can force a read at an invalid address in redir_stack, in order to trigger a denial of service. [severity:1/4; CVE-2014-7186]

An attacker can generate a buffer overflow of one byte in word_lineno, in order to trigger a denial of service, and possibly to execute code. [severity:1/4; CVE-2014-7187]
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