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LIN5-19520 : Security Advisory - bash - CVE-2014-6277

Created: Oct 8, 2014    Updated: Dec 19, 2017
Resolved Date: Oct 20, 2014
Previous ID: LIN4-31786
Found In Version: 5.0.1.20
Fix Version: 5.0.1.20
Severity: Standard
Applicable for: Wind River Linux 5
Component/s: Userspace

Description

GNU Bash through 4.3 bash43-026 does not properly parse function definitions in the values of environment variables, which allows remote attackers to execute arbitrary code or cause a denial of service (uninitialized memory access, and untrusted-pointer read and write operations) via a crafted environment, as demonstrated by vectors involving the ForceCommand feature in OpenSSH sshd, the mod_cgi and mod_cgid modules in the Apache HTTP Server, scripts executed by unspecified DHCP clients, and other situations in which setting the environment occurs across a privilege boundary from Bash execution. NOTE: this vulnerability exists because of an incomplete fix for CVE-2014-6271 and CVE-2014-7169. 

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-6277

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