Vulnerability Details : 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.
Vulnerability category: Memory CorruptionExecute codeDenial of service
Products affected by CVE-2012-4559
- cpe:2.3:a:libssh:libssh:*:*:*:*:*:*:*:*
- cpe:2.3:a:libssh:libssh:0.4.7:*:*:*:*:*:*:*
- cpe:2.3:a:libssh:libssh:0.5.0:rc1:*:*:*:*:*:*
- cpe:2.3:a:libssh:libssh:0.4.8:*:*:*:*:*:*:*
- cpe:2.3:a:libssh:libssh:0.5.1:*:*:*:*:*:*:*
- cpe:2.3:a:libssh:libssh:0.5.0:*:*:*:*:*:*:*
Threat overview for CVE-2012-4559
Top countries where our scanners detected CVE-2012-4559
Top open port discovered on systems with this issue
22
IPs affected by CVE-2012-4559 1,065
Threat actors abusing to this issue?
Yes
Find out if you* are
affected by CVE-2012-4559!
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attack surface intelligence
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Exploit prediction scoring system (EPSS) score for CVE-2012-4559
11.91%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 95 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2012-4559
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
6.8
|
MEDIUM | AV:N/AC:M/Au:N/C:P/I:P/A:P |
8.6
|
6.4
|
NIST |
CWE ids for CVE-2012-4559
-
Assigned by: nvd@nist.gov (Primary)
References for CVE-2012-4559
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http://lists.opensuse.org/opensuse-updates/2013-01/msg00021.html
openSUSE-SU-2013:0130-1: moderate: update for libssh
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https://exchange.xforce.ibmcloud.com/vulnerabilities/80218
libssh code execution CVE-2012-4559 Vulnerability Report
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http://www.securityfocus.com/bid/56604
libssh Multiple Buffer Overflow and Denial of Service Vulnerabilities
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http://www.openwall.com/lists/oss-security/2012/11/20/3
oss-security - libssh 0.5.3 release fixes multiple security issues
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https://bugzilla.redhat.com/show_bug.cgi?id=871612
871612 – (CVE-2012-4559, CVE-2012-6063) CVE-2012-4559 CVE-2012-6063 libssh: multiple double free() flaws
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http://www.ubuntu.com/usn/USN-1640-1
USN-1640-1: libssh vulnerabilities | Ubuntu security notices
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http://lists.fedoraproject.org/pipermail/package-announce/2012-November/093313.html
[SECURITY] Fedora 18 Update: libssh-0.5.3-1.fc18
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http://lists.opensuse.org/opensuse-updates/2012-12/msg00016.html
openSUSE-SU-2012:1622-1: moderate: update for libssh
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http://lists.fedoraproject.org/pipermail/package-announce/2012-November/093474.html
[SECURITY] Fedora 17 Update: libssh-0.5.3-1.fc17
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http://lists.opensuse.org/opensuse-security-announce/2012-12/msg00002.html
[security-announce] openSUSE-SU-2012:1620-1: important: update for libss
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http://www.libssh.org/2012/11/20/libssh-0-5-3-security-release/
libssh 0.5.3 (SECURITY RELEASE) – libsshVendor Advisory
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http://www.mandriva.com/security/advisories?name=MDVSA-2012:175
mandriva.com
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http://www.debian.org/security/2012/dsa-2577
Debian -- Security Information -- DSA-2577-1 libssh
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