Vulnerability in Libssh
CVE-2012-4559
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.
Published · last modified .
CVSS v2 metric
CVSS v2 base score 6.8 (Medium). Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.052 (92.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 92nd percentile — 92.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.052 · newest: 0.052 · change: 0.000
Affected products
- Libssh — versions 0.4.7, 0.4.8, 0.5.0
Weakness classification (CWE)
References
- bugzilla.redhat.com/show_bug.cgi
- www.debian.org/security/2012/dsa-2577 (vendor-advisory)
- www.mandriva.com/security/advisories (vendor-advisory)
- www.ubuntu.com/usn/USN-1640-1 (vendor-advisory)
- lists.opensuse.org/opensuse-updates/2013-01/msg00021.html (vendor-advisory)
- lists.opensuse.org/opensuse-updates/2012-12/msg00016.html (vendor-advisory)
- exchange.xforce.ibmcloud.com/vulnerabilities/80218 (vdb-entry)
- lists.fedoraproject.org/pipermail/package-announce/2012-November/093313.html (vendor-advisory)
- lists.opensuse.org/opensuse-security-announce/2012-12/msg00002.html (vendor-advisory)
- www.openwall.com/lists/oss-security/2012/11/20/3 (mailing-list)