CVE-2014-7169
Published: January 28, 2022
Official Description
GNU Bash through 4.3 processes trailing strings after function definitions in the values of environment variables, which allows remote attackers to execute code. This CVE correctly remediates the vulnerability in CVE-2014-6271.
CISA KEV Advisory
GNU Bourne-Again Shell (Bash) Arbitrary Code Execution Vulnerability
GNU Bash through 4.3 processes trailing strings after function definitions in the values of environment variables, which allows remote attackers to execute code. This CVE correctly remediates the vulnerability in CVE-2014-6271.
Apply updates per vendor instructions.
Risk Analysis
This vulnerability in GNU Bash allows remote attackers to execute code by processing trailing strings after function definitions in environment variables. The high EPSS score of 0.90108 and its presence in CISA's KEV indicate a critical and actively exploited threat.
This vulnerability is actively exploited in the wild, as confirmed by its presence in CISA's Known Exploited Vulnerabilities catalog. It is remotely exploitable.
Update GNU Bash to a patched version that addresses this vulnerability. Ensure all systems running Bash are updated promptly.
Technical Analysis
CVE-2014-7169 requires local access, meaning attackers must already have a foothold on the target system.
Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
CISA has added CVE-2014-7169 to the Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. U.S. federal agencies are required to patch this within the mandated timeframe, and all organizations should treat remediation as urgent.
Exploit & PoC Resources
All References (1)
Quick Facts
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2014-7169 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
- !CISA KEV: Federal agencies must patch per BOD 22-01 timeline
- !Active exploitation confirmed — treat as P1