CVE-2003-0693

critical

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.

References

https://github.com/teamos-hub/regreSSHion

https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A447

https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A2719

https://exchange.xforce.ibmcloud.com/vulnerabilities/13191

https://euvd.enisa.europa.eu/vulnerability/EUVD-2003-0684

http://www.redhat.com/support/errata/RHSA-2003-280.html

http://www.openwall.com/lists/oss-security/2024/07/01/3

http://www.openssh.com/txt/buffer.adv

http://www.mandriva.com/security/advisories?name=MDKSA-2003:090

http://www.kb.cert.org/vuls/id/333628

http://www.debian.org/security/2003/dsa-383

http://www.debian.org/security/2003/dsa-382

http://www.cert.org/advisories/CA-2003-24.html

http://sunsolve.sun.com/search/document.do?assetkey=1-77-1000620.1-1

http://marc.info/?l=bugtraq&m=106381409220492&w=2

http://marc.info/?l=bugtraq&m=106381396120332&w=2

http://marc.info/?l=bugtraq&m=106374466212309&w=2

http://marc.info/?l=bugtraq&m=106373546332230&w=2

http://marc.info/?l=bugtraq&m=106373247528528&w=2

http://lists.grok.org.uk/pipermail/full-disclosure/2003-September/010146.html

http://lists.grok.org.uk/pipermail/full-disclosure/2003-September/010135.html

http://lists.grok.org.uk/pipermail/full-disclosure/2003-September/010103.html

Details

Source: Mitre, NVD

Published: 2003-09-22

Updated: 2026-06-16

Risk Information

CVSS v2

Base Score: 10

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

Severity: Critical

CVSS v3

Base Score: 9.8

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Critical

EPSS

EPSS: 0.09893