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CVE-2014-6277 PUBLISHED

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.

EPSS 87.82% · 99.5th percentile

Risk Scores

EPSS Score
87.82%
99.5th percentile

Affected Products

VendorProductVersions
Ubuntu:14.04:LTSbash0, 4.2-5ubuntu3, 4.3-1ubuntu2

Timeline

References

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