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Vulnerability details: VCID-fr4k-z6vc-aaaj
Vulnerability ID VCID-fr4k-z6vc-aaaj
Aliases CVE-2012-4561
Summary The (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.
Status Published
Exploitability 0.5
Weighted Severity 4.5
Risk 2.2
Affected and Fixed Packages Package Details
Weaknesses (0)
There are no known CWE.
System Score Found at
epss 0.03707 https://api.first.org/data/v1/epss?cve=CVE-2012-4561
epss 0.03707 https://api.first.org/data/v1/epss?cve=CVE-2012-4561
epss 0.03707 https://api.first.org/data/v1/epss?cve=CVE-2012-4561
epss 0.03707 https://api.first.org/data/v1/epss?cve=CVE-2012-4561
epss 0.03707 https://api.first.org/data/v1/epss?cve=CVE-2012-4561
epss 0.03707 https://api.first.org/data/v1/epss?cve=CVE-2012-4561
epss 0.03707 https://api.first.org/data/v1/epss?cve=CVE-2012-4561
epss 0.03707 https://api.first.org/data/v1/epss?cve=CVE-2012-4561
epss 0.03707 https://api.first.org/data/v1/epss?cve=CVE-2012-4561
epss 0.03707 https://api.first.org/data/v1/epss?cve=CVE-2012-4561
epss 0.03707 https://api.first.org/data/v1/epss?cve=CVE-2012-4561
epss 0.03707 https://api.first.org/data/v1/epss?cve=CVE-2012-4561
epss 0.03707 https://api.first.org/data/v1/epss?cve=CVE-2012-4561
epss 0.03707 https://api.first.org/data/v1/epss?cve=CVE-2012-4561
epss 0.03707 https://api.first.org/data/v1/epss?cve=CVE-2012-4561
epss 0.03707 https://api.first.org/data/v1/epss?cve=CVE-2012-4561
epss 0.03707 https://api.first.org/data/v1/epss?cve=CVE-2012-4561
epss 0.03707 https://api.first.org/data/v1/epss?cve=CVE-2012-4561
epss 0.03707 https://api.first.org/data/v1/epss?cve=CVE-2012-4561
epss 0.03707 https://api.first.org/data/v1/epss?cve=CVE-2012-4561
epss 0.03707 https://api.first.org/data/v1/epss?cve=CVE-2012-4561
epss 0.03707 https://api.first.org/data/v1/epss?cve=CVE-2012-4561
epss 0.03707 https://api.first.org/data/v1/epss?cve=CVE-2012-4561
epss 0.03707 https://api.first.org/data/v1/epss?cve=CVE-2012-4561
epss 0.03707 https://api.first.org/data/v1/epss?cve=CVE-2012-4561
epss 0.03707 https://api.first.org/data/v1/epss?cve=CVE-2012-4561
epss 0.03707 https://api.first.org/data/v1/epss?cve=CVE-2012-4561
epss 0.03707 https://api.first.org/data/v1/epss?cve=CVE-2012-4561
epss 0.03707 https://api.first.org/data/v1/epss?cve=CVE-2012-4561
epss 0.03707 https://api.first.org/data/v1/epss?cve=CVE-2012-4561
epss 0.03707 https://api.first.org/data/v1/epss?cve=CVE-2012-4561
epss 0.03707 https://api.first.org/data/v1/epss?cve=CVE-2012-4561
epss 0.03707 https://api.first.org/data/v1/epss?cve=CVE-2012-4561
epss 0.03707 https://api.first.org/data/v1/epss?cve=CVE-2012-4561
epss 0.03707 https://api.first.org/data/v1/epss?cve=CVE-2012-4561
epss 0.03707 https://api.first.org/data/v1/epss?cve=CVE-2012-4561
epss 0.03707 https://api.first.org/data/v1/epss?cve=CVE-2012-4561
epss 0.03707 https://api.first.org/data/v1/epss?cve=CVE-2012-4561
epss 0.03707 https://api.first.org/data/v1/epss?cve=CVE-2012-4561
epss 0.03707 https://api.first.org/data/v1/epss?cve=CVE-2012-4561
epss 0.03707 https://api.first.org/data/v1/epss?cve=CVE-2012-4561
epss 0.03707 https://api.first.org/data/v1/epss?cve=CVE-2012-4561
epss 0.03707 https://api.first.org/data/v1/epss?cve=CVE-2012-4561
epss 0.03707 https://api.first.org/data/v1/epss?cve=CVE-2012-4561
epss 0.03707 https://api.first.org/data/v1/epss?cve=CVE-2012-4561
epss 0.03707 https://api.first.org/data/v1/epss?cve=CVE-2012-4561
epss 0.03707 https://api.first.org/data/v1/epss?cve=CVE-2012-4561
epss 0.03707 https://api.first.org/data/v1/epss?cve=CVE-2012-4561
epss 0.03707 https://api.first.org/data/v1/epss?cve=CVE-2012-4561
epss 0.03707 https://api.first.org/data/v1/epss?cve=CVE-2012-4561
epss 0.03707 https://api.first.org/data/v1/epss?cve=CVE-2012-4561
epss 0.03707 https://api.first.org/data/v1/epss?cve=CVE-2012-4561
epss 0.03707 https://api.first.org/data/v1/epss?cve=CVE-2012-4561
epss 0.03707 https://api.first.org/data/v1/epss?cve=CVE-2012-4561
epss 0.03707 https://api.first.org/data/v1/epss?cve=CVE-2012-4561
epss 0.03707 https://api.first.org/data/v1/epss?cve=CVE-2012-4561
epss 0.03707 https://api.first.org/data/v1/epss?cve=CVE-2012-4561
epss 0.03707 https://api.first.org/data/v1/epss?cve=CVE-2012-4561
epss 0.03707 https://api.first.org/data/v1/epss?cve=CVE-2012-4561
epss 0.03707 https://api.first.org/data/v1/epss?cve=CVE-2012-4561
epss 0.0512 https://api.first.org/data/v1/epss?cve=CVE-2012-4561
epss 0.10434 https://api.first.org/data/v1/epss?cve=CVE-2012-4561
epss 0.10434 https://api.first.org/data/v1/epss?cve=CVE-2012-4561
epss 0.10434 https://api.first.org/data/v1/epss?cve=CVE-2012-4561
epss 0.10434 https://api.first.org/data/v1/epss?cve=CVE-2012-4561
epss 0.10434 https://api.first.org/data/v1/epss?cve=CVE-2012-4561
epss 0.10434 https://api.first.org/data/v1/epss?cve=CVE-2012-4561
epss 0.10434 https://api.first.org/data/v1/epss?cve=CVE-2012-4561
epss 0.10434 https://api.first.org/data/v1/epss?cve=CVE-2012-4561
epss 0.10434 https://api.first.org/data/v1/epss?cve=CVE-2012-4561
epss 0.10620 https://api.first.org/data/v1/epss?cve=CVE-2012-4561
epss 0.10620 https://api.first.org/data/v1/epss?cve=CVE-2012-4561
epss 0.10620 https://api.first.org/data/v1/epss?cve=CVE-2012-4561
cvssv2 5.0 https://nvd.nist.gov/vuln/detail/CVE-2012-4561
Reference id Reference type URL
http://lists.fedoraproject.org/pipermail/package-announce/2012-November/093313.html
http://lists.fedoraproject.org/pipermail/package-announce/2012-November/093474.html
http://lists.opensuse.org/opensuse-security-announce/2012-12/msg00002.html
http://lists.opensuse.org/opensuse-updates/2012-12/msg00016.html
http://lists.opensuse.org/opensuse-updates/2013-01/msg00021.html
https://api.first.org/data/v1/epss?cve=CVE-2012-4561
https://bugzilla.redhat.com/show_bug.cgi?id=871617
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-4561
https://exchange.xforce.ibmcloud.com/vulnerabilities/80220
http://www.debian.org/security/2012/dsa-2577
http://www.libssh.org/2012/11/20/libssh-0-5-3-security-release/
http://www.mandriva.com/security/advisories?name=MDVSA-2012:175
http://www.openwall.com/lists/oss-security/2012/11/20/3
http://www.securityfocus.com/bid/56604
http://www.ubuntu.com/usn/USN-1640-1
cpe:2.3:a:libssh:libssh:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:libssh:libssh:*:*:*:*:*:*:*:*
cpe:2.3:a:libssh:libssh:0.4.7:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:libssh:libssh:0.4.7:*:*:*:*:*:*:*
cpe:2.3:a:libssh:libssh:0.4.8:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:libssh:libssh:0.4.8:*:*:*:*:*:*:*
cpe:2.3:a:libssh:libssh:0.5.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:libssh:libssh:0.5.0:*:*:*:*:*:*:*
cpe:2.3:a:libssh:libssh:0.5.0:rc1:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:libssh:libssh:0.5.0:rc1:*:*:*:*:*:*
cpe:2.3:a:libssh:libssh:0.5.1:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:libssh:libssh:0.5.1:*:*:*:*:*:*:*
CVE-2012-4561 https://nvd.nist.gov/vuln/detail/CVE-2012-4561
GLSA-201402-26 https://security.gentoo.org/glsa/201402-26
USN-1640-1 https://usn.ubuntu.com/1640-1/
No exploits are available.
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P Found at https://nvd.nist.gov/vuln/detail/CVE-2012-4561
Exploitability (E) Access Vector (AV) Access Complexity (AC) Authentication (Au) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

high

functional

unproven

proof_of_concept

not_defined

local

adjacent_network

network

high

medium

low

multiple

single

none

none

partial

complete

none

partial

complete

none

partial

complete
Exploit Prediction Scoring System (EPSS)
Percentile 0.86866
EPSS Score 0.03707
Published At March 28, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
There are no relevant records.