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prionPRIOn knowledge basePRION:CVE-2014-6277
HistorySep 27, 2014 - 10:55 p.m.

Design/Logic Flaw

2014-09-2722:55:00
PRIOn knowledge base
www.prio-n.com
14

9.7 High

AI Score

Confidence

High

0.976 High

EPSS

Percentile

100.0%

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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References