CVE-2006-5051
HIGH · CVSS 8.1EPSS 45.6%EU EUVD
Signal handler race condition in OpenSSH before 4.4 allows remote attackers to cause a denial of service (crash), and possibly execute arbitrary code if GSSAPI authentication is enabled, via unspecified vectors that lead to a double-free.
Key facts
- CVSS score
- 8.1 (v3.1)
- Severity
- HIGH
- CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H- Weakness (CWE)
- CWE-415
- EPSS score
- 45.6% (99th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2006-5036)
- Published
- September 27, 2006
- NVD last modified
- June 16, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2006-5036 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.
View on the EU Vulnerability DatabaseAffected products
- apple / mac os x
- apple / mac os x server
- debian / debian linux
- openbsd / openssh
Certified products that may be affected
1 FIPS 140 or Common Criteria certified product, from automated matching by sec-certs.org.
- Apple Mac OS X v10.3.6 and Apple Mac OS X Server V10.3.6 - Apple Inc. - Common Criteria CCEVS-VR-0086-2005 - archived
References
- ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-06:22.openssh.asc(Broken Link)
- ftp://patches.sgi.com/support/free/security/advisories/20061001-01-P.asc(Broken Link)
- http://docs.info.apple.com/article.html?artnum=305214(Broken Link)
- http://lists.apple.com/archives/security-announce/2007/Mar/msg00002.html(Mailing List)
- http://lists.freebsd.org/pipermail/freebsd-security/2006-October/004051.html(Mailing List)
- http://marc.info/?l=openssh-unix-dev&m=115939141729160&w=2(Mailing List)
- http://openssh.org/txt/release-4.4(Release Notes)
- http://secunia.com/advisories/22158(Broken Link, Vendor Advisory)
- http://secunia.com/advisories/22173(Broken Link, Vendor Advisory)
- http://secunia.com/advisories/22183(Broken Link, Vendor Advisory)
- http://secunia.com/advisories/22196(Broken Link, Vendor Advisory)
- http://secunia.com/advisories/22208(Broken Link, Vendor Advisory)
- http://secunia.com/advisories/22236(Broken Link, Vendor Advisory)
- http://secunia.com/advisories/22245(Broken Link, Vendor Advisory)
- http://secunia.com/advisories/22270(Broken Link, Vendor Advisory)
- http://secunia.com/advisories/22352(Broken Link, Vendor Advisory)
- http://secunia.com/advisories/22362(Broken Link, Vendor Advisory)
- http://secunia.com/advisories/22487(Broken Link, Vendor Advisory)
- http://secunia.com/advisories/22495(Broken Link)
- http://secunia.com/advisories/22823(Broken Link, Vendor Advisory)
- http://secunia.com/advisories/22926(Broken Link, Vendor Advisory)
- http://secunia.com/advisories/23680(Broken Link, Vendor Advisory)
- http://secunia.com/advisories/24479(Broken Link, Vendor Advisory)
- http://secunia.com/advisories/24799(Broken Link, Vendor Advisory)
- http://secunia.com/advisories/24805(Broken Link, Vendor Advisory)
- http://security.freebsd.org/advisories/FreeBSD-SA-06%3A22.openssh.asc(Third Party Advisory)
- http://security.gentoo.org/glsa/glsa-200611-06.xml(Third Party Advisory)
- http://securitytracker.com/id?1016940(Broken Link, Third Party Advisory, VDB Entry)
- http://slackware.com/security/viewer.php?l=slackware-security&y=2006&m=slackware-security.592566(Broken Link)
- http://sourceforge.net/forum/forum.php?forum_id=681763(Broken Link)
- http://support.avaya.com/elmodocs2/security/ASA-2006-216.htm(Third Party Advisory)
- http://www-unix.globus.org/mail_archive/security-announce/2007/04/msg00000.html(Broken Link)
- http://www.arkoon.fr/upload/alertes/36AK-2006-07-FR-1.0_FAST360_OPENSSH.pdf(Broken Link)
- http://www.arkoon.fr/upload/alertes/43AK-2006-09-FR-1.0_SSL360_OPENSSH.pdf(Broken Link)
- http://www.debian.org/security/2006/dsa-1189(Mailing List)
- http://www.debian.org/security/2006/dsa-1212(Broken Link)
- http://www.kb.cert.org/vuls/id/851340(Third Party Advisory, US Government Resource)
- http://www.mandriva.com/security/advisories?name=MDKSA-2006:179(Third Party Advisory)
- http://www.novell.com/linux/security/advisories/2006_62_openssh.html(Broken Link)
- http://www.openbsd.org/errata.html#ssh(Release Notes)
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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