A "buffer management error" in buffer_append_space of buffer.c for OpenSSH before 3.7 may…
Priority MEDIUM 56Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- Complete · Complete · Complete
- Fix status
- Fixed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat.
Summary
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.
Why it matters now
EPSS 0.11423 96th percentileScored 2026-11-07
Fix Fixed Red Hat: 2 advisories
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
Red Hat 2 advisories
- RHSA-2003:279 Released 2003-09-16 · Red Hat rating Critical: Updated OpenSSH packages fix potential vulnerabilities
- Red Hat Linux 7.1
- Red Hat Linux 7.2
- Red Hat Linux 7.3
- Red Hat Linux 8.0
- Red Hat Linux 9
- RHSA-2003:280 Released 2003-09-16 · Red Hat rating Criticalopenssh security update
- Red Hat Enterprise Linux AS (Advanced Server) version 2.1
- Red Hat Enterprise Linux ES version 2.1
- Red Hat Enterprise Linux WS version 2.1
- Red Hat Linux Advanced Workstation 2.1
Vendor assessments
Red Hat
Red Hat rating: Critical. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux AS (Advanced Server) version 2.1 | Fixed | RHSA-2003:280 |
| Red Hat Enterprise Linux ES version 2.1 | Fixed | RHSA-2003:280 |
| Red Hat Enterprise Linux WS version 2.1 | Fixed | RHSA-2003:280 |
| Red Hat Linux 7.1 | Fixed | RHSA-2003:279 |
| Red Hat Linux 7.2 | Fixed | RHSA-2003:279 |
| Red Hat Linux 7.3 | Fixed | RHSA-2003:279 |
| Red Hat Linux 8.0 | Fixed | RHSA-2003:279 |
| Red Hat Linux 9 | Fixed | RHSA-2003:279 |
| Red Hat Linux Advanced Workstation 2.1 | Fixed | RHSA-2003:280 |
Timeline
- 2026-10-02 Threatist record created from CVE-2003-0693
- 2026-10-03 Alias added: GHSA-2264-54r3-3rjm
References
Patch 1
Other 10
- 20030915 new ssh exploit?
- 20030917 [OpenPKG-SA-2003.040] OpenPKG Security Advisory (openssh)
- 20030916 [slackware-security] OpenSSH Security Advisory (SSA:2003-259-01)
- http://www.openssh.com/txt/buffer.adv
- 20030915 openssh remote exploit
- oval:org.mitre.oval:def:2719
- 20030916 The lowdown on SSH vulnerability
- 20030916 OpenSSH Buffer Management Bug Advisory
- oval:org.mitre.oval:def:447
- [oss-security] 20240701 CVE-2024-6387: RCE in OpenSSH's server, on glibc-based Linux systems
More OpenBSD Openssh vulnerabilities
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- TI-2024-05929 Openssh: regresshion - race condition in ssh allows rce/dos CVSS 3.1HIGH 8.1
- TI-2023-10601 OpenSSH server (sshd) 9.1 introduced a double-free vulnerability during… CVSS 3.1MEDIUM 6.5
- TI-2018-11033 OpenSSH through 7.7 is prone to a user enumeration vulnerability due to not delaying… CVSS 3.1MEDIUM 5.9
- TI-2016-08105 Untrusted search path vulnerability in ssh-agent.c in ssh-agent in OpenSSH before 7.4… CVSS 3.1HIGH 7.3
- TI-2023-28040 In ssh in OpenSSH before 9.6, OS command injection might occur if a user name or host… CVSS 3.1MEDIUM 6.5
Sources
- CVE-2003-0693 · CVE Program
- CVE-2003-0693 · NVD
- FIRST EPSS
- GHSA-2264-54r3-3rjm · GitHub Advisory Database · CC BY 4.0
- CVE-2003-0693 · Red Hat security data · CC BY 4.0
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