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Vulnerability record · CVE-2003-0693 · published 22 September 2003

CVE-2003-0693: Openbsd openssh vulnerability

Openbsd · Openssh

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.

10.0 CVSS 2.0 High EPSS 11% · top 4.1%
10.0CVSS 2.0 base score
11%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
40References
16 Jun 2026Last modified by NVD

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.

AV:N/AC:L/Au:N/C:C/I:C/A:C

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

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

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2003-0693), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.