CVE-2012-4561

NameCVE-2012-4561
DescriptionThe (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.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
ReferencesDSA-2577-1
NVD severitymedium

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
libssh (PTS)stretch0.7.3-2+deb9u2fixed
stretch (security)0.7.3-2+deb9u3fixed
buster0.8.7-1+deb10u1fixed
bullseye, sid0.9.5-1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
libsshsourcesqueeze0.4.5-3+squeeze1DSA-2577-1
libsshsource(unstable)0.5.3-1

Search for package or bug name: Reporting problems