CVE-2014-6277
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.
Early warning: exploitation observed
- Exploitation observed since Mar 1, 2018
- Not yet in the official CISA catalogue
- First attack observed 1250 days after disclosure
Source: VulnCheck KEV · Mar 31, 2025 Mar 1, 2018
AV:N/AC:L/Au:N/C:C/I:C/A:CAffected products
| Vendors | Product | Versions |
|---|---|---|
| gnu | bash | 1.14.0 |
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