Description
The (1) publickey_make_dss, (2) publickey_make_rsa, (3) signature_from_string, (4) ssh_do_sign, and (5) ssh_sign_session_id functions in keys.c in libssh before 0.5.3 free "an invalid pointer on an error path," which might allow remote attackers to cause a denial of service (crash) via unspecified vectors.
Published: 2012-11-30
Score: 5.0 Medium
EPSS: 3.7% Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
Debian DSA Debian DSA DSA-2577-1 libssh security update
EUVD EUVD EUVD-2012-4489 The (1) publickey_make_dss, (2) publickey_make_rsa, (3) signature_from_string, (4) ssh_do_sign, and (5) ssh_sign_session_id functions in keys.c in libssh before 0.5.3 free "an invalid pointer on an error path," which might allow remote attackers to cause a denial of service (crash) via unspecified vectors.
Ubuntu USN Ubuntu USN USN-1640-1 libssh vulnerabilities
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2024-08-06T20:42:53.678Z

Reserved: 2012-08-21T00:00:00.000Z

Link: CVE-2012-4561

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2012-11-30T22:55:01.720

Modified: 2026-04-29T01:13:23.040

Link: CVE-2012-4561

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses