CVE-2012-4559
6.8 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
7.7 High
AI Score
Confidence
Low
0.111 Low
EPSS
Percentile
95.2%
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.
Affected configurations
References
lists.fedoraproject.org/pipermail/package-announce/2012-November/093313.html
lists.fedoraproject.org/pipermail/package-announce/2012-November/093474.html
lists.opensuse.org/opensuse-security-announce/2012-12/msg00002.html
lists.opensuse.org/opensuse-updates/2012-12/msg00016.html
lists.opensuse.org/opensuse-updates/2013-01/msg00021.html
www.debian.org/security/2012/dsa-2577
www.libssh.org/2012/11/20/libssh-0-5-3-security-release/
www.mandriva.com/security/advisories?name=MDVSA-2012:175
www.openwall.com/lists/oss-security/2012/11/20/3
www.securityfocus.com/bid/56604
www.ubuntu.com/usn/USN-1640-1
bugzilla.redhat.com/show_bug.cgi?id=871612
exchange.xforce.ibmcloud.com/vulnerabilities/80218
Related
6.8 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
7.7 High
AI Score
Confidence
Low
0.111 Low
EPSS
Percentile
95.2%