Information disclosure in OpenBSD OpenSSH
CVE-2008-5161
Error handling in the SSH protocol in (1) SSH Tectia Client and Server and Connector 4.0 through 4.4.11, 5.0 through 5.2.4, and 5.3 through 5.3.8; Client and Server and ConnectSecure 6.0 through 6.0.4; Server for Linux on IBM System z 6.0.4; Server for IBM z/OS 5.5.1 and earlier, 6.0.0, and 6.0.1; and Client 4.0-J through 4.3.3-J and 4.0-K through 4.3.10-K; and (2) OpenSSH 4.7p1 and possibly other versions, when using a block cipher algorithm in Cipher Block Chaining (CBC) mode, makes it easier for remote attackers to recover certain plaintext data from an arbitrary block of ciphertext in an SSH session via unknown vectors.
Vulnerability class: Information Disclosure
Published · last modified .
CVSS v3 metric
CVSS v3 base score 3.7 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
EPSS: 0.186 (97.2th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 97th percentile — 97.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.186 · newest: 0.186 · change: 0.000
Affected products
- OpenBSD OpenSSH — versions 4.7p1
- SSH Tectia Client — versions 4.0, 4.0.1, 4.0.3
- SSH Tectia Connector — versions 4.0.7, 4.1.2, 4.1.3
- SSH Tectia Connectsecure — versions 6.0.0, 6.0.1, 6.0.2
- SSH Tectia Server — versions 4.0, 4.0.3, 4.0.4
Weakness classification (CWE)
Public proof-of-concept exploits
References
- openssh.org/txt/cbc.adv
- sunsolve.sun.com/search/document.do (vendor-advisory)
- www.securityfocus.com/bid/32319 (vdb-entry)
- secunia.com/advisories/33121 (third-party-advisory)
- h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay
- osvdb.org/49872 (vdb-entry)
- secunia.com/advisories/33308 (third-party-advisory)
- rhn.redhat.com/errata/RHSA-2009-1287.html (vendor-advisory)
- www.cpni.gov.uk/Docs/Vulnerability_Advisory_SSH.txt
- www.securitytracker.com/id (vdb-entry)
Frequently asked questions
- What is CVE-2008-5161?
- CVE-2008-5161 is a low-severity vulnerability in OpenBSD OpenSSH, classified under Information Disclosure. CVSS score: 3.7/10. Published 2008-11-19.
- How severe is CVE-2008-5161?
- Low severity. CVSS v3 base score is 3.7 out of 10.
- Is CVE-2008-5161 known to be exploited?
- 44 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.