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

EPSS: 0.186 (97.1th percentile) — read the EPSS interpretation.

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.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

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.