GNU Bash through 4.3 bash43-026 does not properly parse...
High severity
Unreviewed
Published
May 14, 2022
to the GitHub Advisory Database
•
Updated Feb 2, 2023
Description
Published by the National Vulnerability Database
Sep 27, 2014
Published to the GitHub Advisory Database
May 14, 2022
Last updated
Feb 2, 2023
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.
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