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.
References
Configurations
Configuration 1 (hide)
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Information
Published : 2014-09-27 15:55
Updated : 2018-08-08 18:29
NVD link : CVE-2014-6277
Mitre link : CVE-2014-6277
JSON object : View
CWE
CWE-78
Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Products Affected
gnu
- bash