CVE-2012-4559

MediumCVSS 6.8/10Last modified Jun 16, 2026

Description

Multiple double free vulnerabilities in the (1) agent_sign_data function in agent.c, (2) channel_request function in channels.c, (3) ssh_userauth_pubkey function in auth.c, (4) sftp_parse_attr_3 function in sftp.c, and (5) try_publickey_from_file function in keyfiles.c in libssh before 0.5.3 allow remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via unspecified vectors.

Metrics

CVSS 2.0 6.8/10AV:N/AC:M/Au:N/C:P/I:P/A:P

Weakness enumeration

CWE-399

Affected software

No affected versions have been published.

Timeline

Published
Nov 30, 2012
Last modified
Jun 16, 2026
NVD status
Modified

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CVE-2012-4559: Medium severity, CVSS 6.8 | Vulnix