CVE-2003-0693
A "buffer management error" in buffer_append_space of buffer.c for OpenSSH before 3.7 may allow...
CVE-2003-0693 is a high vulnerability (CVSS 10.0) in Openbsd Openssh, published September 16, 2003. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 11.4%, the 96th percentile. Fixed in openssh 1:3.6.1p2-6.0.
- Severity
- 10.0 HighCVSS 2.0, NVD
- Exploit chance
- 11.4%EPSS, 96th percentile
- Exploitation
- None knownNot on CISA’s or ENISA’s lists
- Fixed in
1:3.6.1p2-6.0openssh +6 more
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.
Exploit likelihood
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
opensshDebian:12 | before 1:3.6.1p2-6.0 | 1:3.6.1p2-6.0 |
opensshDebian:13 | before 1:3.6.1p2-6.0 | 1:3.6.1p2-6.0 |
opensshDebian:14 | before 1:3.6.1p2-6.0 | 1:3.6.1p2-6.0 |
opensshDebian:3.0 | before 1:3.4p1-1.1 | 1:3.4p1-1.1 |
opensshDebian:3.0 From an advisory covering 2 CVEs | before 1:3.4p1-1.woody.2 | 1:3.4p1-1.woody.2 |
opensshDebian:3.0 From an advisory covering 3 CVEs | before 1:3.4p1-1.woody.3 | 1:3.4p1-1.woody.3 |
openssh-krb5Debian:3.0 From an advisory covering 3 CVEs | before 3.4p1-0woody4 | 3.4p1-0woody4 |
What each source reports
NVD Score used
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.
- Record
CVE-2003-0693- CVSS 2.0
- 10.0 High
AV:N/AC:L/Au:N/C:C/I:C/A:C - Updated
- 2026-11-02
CVE ListNo score
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.
- Record
CVE-2003-0693- Updated
- 2026-11-02
EUVDEUVD-2003-0684No score
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.
- Record
EUVD-2003-0684- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-2264-54r3-3rjmNo score
A "buffer management error" in buffer_append_space of buffer.c for OpenSSH before 3.7 may allow...
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.
- Record
GHSA-2264-54r3-3rjm- Updated
- 2026-11-02
OSVNo score
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.
- Record
CVE-2003-0693- Updated
- 2026-11-02
OSVDEBIAN-CVE-2003-0693No score
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.
- Record
DEBIAN-CVE-2003-0693- Updated
- 2026-11-02
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, facts | ||
| affected | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
References
sunsolve.sun.com/search/document.do?assetkey=1-77-1000620.1-1
lists.grok.org.uk/pipermail/full-disclosure/2003-September/010103.html
marc.info?l=bugtraq&m=106381409220492&w=2
exchange.xforce.ibmcloud.com/vulnerabilities/13191
debian.org/security/2003/dsa-383
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openssh.com/txt/buffer.adv
redhat.com/support/errata/RHSA-2003-280.html
cert.org/advisories/CA-2003-24.html
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A2719
mandriva.com/security/advisories?name=MDKSA-2003:090
kb.cert.org/vuls/id/333628
openwall.com/lists/oss-security/2024/07/01/3
nvd.nist.gov/vuln/detail/CVE-2003-0693
github.com/advisories/GHSA-2264-54r3-3rjm
security-tracker.debian.org/tracker/CVE-2003-0693