CVE-2014-6277

Critical

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.

SeverityCritical
CVSS10.0
Exploit probability—
ProductGnu Bash
PublishedSep 27, 2014
First seenSep 27, 2014

How to fix

Sources list no fixed version or patch link for this vulnerability.

Affected products

ProductAffected versionsFixed in
gnu bash1.14.0, 1.14.1, 1.14.2, 1.14.3, 1.14.4, 1.14.5, 1.14.6, 1.14.7, 2.0, 2.01, 2.01.1, 2.02, 2.02.1, 2.03, 2.04, 2.05, 3.0, 3.0.16, 3.1, 3.2, 3.2.48, 4.0, 4.1, 4.2, 4.3—

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