CVE-2014-6278
GNU Bash OS Command Injection Vulnerability
Description
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 commands 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, CVE-2014-7169, and CVE-2014-6277.
How to fix CVE-2014-6278
To remediate CVE-2014-6278, upgrade the affected package to a fixed version below.
- —upgrade to 4.3-9.2 or later
Is CVE-2014-6278 being exploited?
Yes — CVE-2014-6278 is on the CISA Known Exploited Vulnerabilities (KEV) catalog. Patch immediately.
Affected packages (1)
- from 0, < 4.3-9.2
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |