CVE-2012-4559

Summary

CVECVE-2012-4559
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2012-11-30 22:55:00 UTC
Updated2017-08-29 01:32:00 UTC
DescriptionMultiple 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.

Risk And Classification

Problem Types: CWE-399

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Libssh Libssh 0.4.7 All All All
Application Libssh Libssh 0.4.8 All All All
Application Libssh Libssh 0.5.0 All All All
Application Libssh Libssh 0.5.0 rc1 All All
Application Libssh Libssh 0.5.1 All All All
Application Libssh Libssh All All All All
Application Libssh Libssh 0.4.7 All All All
Application Libssh Libssh 0.4.8 All All All
Application Libssh Libssh 0.5.0 All All All
Application Libssh Libssh 0.5.0 rc1 All All
Application Libssh Libssh 0.5.1 All All All

References

ReferenceSourceLinkTags
libssh Multiple Buffer Overflow and Denial of Service Vulnerabilities BID www.securityfocus.com
Support / Security / Advisories / / MDVSA-2012:175 | Mandriva MANDRIVA www.mandriva.com
Debian -- Security Information -- DSA-2577-1 libssh DEBIAN www.debian.org
871612 – (CVE-2012-4559, CVE-2012-6063) CVE-2012-4559 CVE-2012-6063 libssh: multiple double free() flaws MISC bugzilla.redhat.com
openSUSE-SU-2012:1622-1: moderate: update for libssh SUSE lists.opensuse.org
USN-1640-1: libssh vulnerabilities | Ubuntu UBUNTU www.ubuntu.com
libssh 0.5.3 (SECURITY RELEASE) at libssh - The SSH Library! CONFIRM www.libssh.org Vendor Advisory
openSUSE-SU-2013:0130-1: moderate: update for libssh SUSE lists.opensuse.org
[SECURITY] Fedora 18 Update: libssh-0.5.3-1.fc18 FEDORA lists.fedoraproject.org
[SECURITY] Fedora 17 Update: libssh-0.5.3-1.fc17 FEDORA lists.fedoraproject.org
[security-announce] openSUSE-SU-2012:1620-1: important: update for libss SUSE lists.opensuse.org
IBM X-Force Exchange XF exchange.xforce.ibmcloud.com
oss-security - libssh 0.5.3 release fixes multiple security issues MLIST www.openwall.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
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