CVE-2006-5051

Published: Sep 27, 2006Modified: Apr 23, 2026

8.1

Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitability: 2.2 / Impact: 5.9

Source: NVD

Description

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.

Affected (6)

Products: Openbsd: Openssh · Debian: Debian Linux · Apple: Mac Os X, Mac Os X Server

1 product

1 product

2 products

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Openbsd Openssh	Up to 4.4

Configuration B

1 vulnerable

Vulnerable Software	Affected Versions
Debian Debian Linux	Version 3.1

Configuration C

4 vulnerable

Vulnerable Software	Affected Versions
Apple Mac Os X	Before 10.3.9
Apple Mac Os X	From 10.4 to 10.4.8
Apple Mac Os X Server	Before 10.3.9
Apple Mac Os X Server	From 10.4 to 10.4.8

Related CWEs

CWE-415

Double Free

The product calls free() twice on the same memory address, potentially leading to modification of unexpected memory locations.

References (116)

ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-06:22.openssh.asc (unsafe URL)

Source: secalert@redhat.com

Broken Link

ftp://patches.sgi.com/support/free/security/advisories/20061001-01-P.asc (unsafe URL)

Source: secalert@redhat.com

Broken Link

http://docs.info.apple.com/article.html?artnum=305214

Source: secalert@redhat.com

Broken Link

http://lists.apple.com/archives/security-announce/2007/Mar/msg00002.html

Source: secalert@redhat.com

Mailing List

http://lists.freebsd.org/pipermail/freebsd-security/2006-October/004051.html

Source: secalert@redhat.com

Mailing List

http://marc.info/?l=openssh-unix-dev&m=115939141729160&w=2

Source: secalert@redhat.com

Mailing List

http://openssh.org/txt/release-4.4

Source: secalert@redhat.com

Release Notes

http://secunia.com/advisories/22158

Source: secalert@redhat.com

Broken LinkVendor Advisory

http://secunia.com/advisories/22173

Source: secalert@redhat.com

Broken LinkVendor Advisory

http://secunia.com/advisories/22183

Source: secalert@redhat.com

Broken LinkVendor Advisory

http://secunia.com/advisories/22196

Source: secalert@redhat.com

Broken LinkVendor Advisory

http://secunia.com/advisories/22208

Source: secalert@redhat.com

Broken LinkVendor Advisory

http://secunia.com/advisories/22236

Source: secalert@redhat.com

Broken LinkVendor Advisory

http://secunia.com/advisories/22245

Source: secalert@redhat.com

Broken LinkVendor Advisory

http://secunia.com/advisories/22270

Source: secalert@redhat.com

Broken LinkVendor Advisory

http://secunia.com/advisories/22352

Source: secalert@redhat.com

Broken LinkVendor Advisory

http://secunia.com/advisories/22362

Source: secalert@redhat.com

Broken LinkVendor Advisory

http://secunia.com/advisories/22487

Source: secalert@redhat.com

Broken LinkVendor Advisory

http://secunia.com/advisories/22495

Source: secalert@redhat.com

Broken Link

http://secunia.com/advisories/22823

Source: secalert@redhat.com

Broken LinkVendor Advisory

http://secunia.com/advisories/22926

Source: secalert@redhat.com

Broken LinkVendor Advisory

http://secunia.com/advisories/23680

Source: secalert@redhat.com

Broken LinkVendor Advisory

http://secunia.com/advisories/24479

Source: secalert@redhat.com

Broken LinkVendor Advisory

http://secunia.com/advisories/24799

Source: secalert@redhat.com

Broken LinkVendor Advisory

http://secunia.com/advisories/24805

Source: secalert@redhat.com

Broken LinkVendor Advisory

http://security.freebsd.org/advisories/FreeBSD-SA-06%3A22.openssh.asc

Source: secalert@redhat.com

Third Party Advisory

http://security.gentoo.org/glsa/glsa-200611-06.xml

Source: secalert@redhat.com

Third Party Advisory

http://securitytracker.com/id?1016940

Source: secalert@redhat.com

Broken LinkThird Party AdvisoryVDB Entry

http://slackware.com/security/viewer.php?l=slackware-security&y=2006&m=slackware-security.592566

Source: secalert@redhat.com

Broken Link

http://sourceforge.net/forum/forum.php?forum_id=681763

Source: secalert@redhat.com

Broken Link

http://support.avaya.com/elmodocs2/security/ASA-2006-216.htm

Source: secalert@redhat.com

Third Party Advisory

http://www-unix.globus.org/mail_archive/security-announce/2007/04/msg00000.html

Source: secalert@redhat.com

Broken Link

http://www.arkoon.fr/upload/alertes/36AK-2006-07-FR-1.0_FAST360_OPENSSH.pdf

Source: secalert@redhat.com

Broken Link

http://www.arkoon.fr/upload/alertes/43AK-2006-09-FR-1.0_SSL360_OPENSSH.pdf

Source: secalert@redhat.com

Broken Link

http://www.debian.org/security/2006/dsa-1189

Source: secalert@redhat.com

Mailing List

http://www.debian.org/security/2006/dsa-1212

Source: secalert@redhat.com

Broken Link

http://www.kb.cert.org/vuls/id/851340

Source: secalert@redhat.com

Third Party AdvisoryUS Government Resource

http://www.mandriva.com/security/advisories?name=MDKSA-2006:179

Source: secalert@redhat.com

Third Party Advisory

http://www.novell.com/linux/security/advisories/2006_62_openssh.html

Source: secalert@redhat.com

Broken Link

http://www.openbsd.org/errata.html#ssh

Source: secalert@redhat.com

Release Notes

http://www.openpkg.org/security/advisories/OpenPKG-SA-2006.022-openssh.html

Source: secalert@redhat.com

Broken Link

http://www.openwall.com/lists/oss-security/2024/07/01/3

Source: secalert@redhat.com

http://www.openwall.com/lists/oss-security/2024/07/28/3

Source: secalert@redhat.com

http://www.osvdb.org/29264

Source: secalert@redhat.com

Broken Link

http://www.redhat.com/support/errata/RHSA-2006-0697.html

Source: secalert@redhat.com

Broken Link

http://www.redhat.com/support/errata/RHSA-2006-0698.html

Source: secalert@redhat.com

Broken Link

http://www.securityfocus.com/bid/20241

Source: secalert@redhat.com

Broken LinkThird Party AdvisoryVDB Entry

http://www.ubuntu.com/usn/usn-355-1

Source: secalert@redhat.com

Broken Link

http://www.us-cert.gov/cas/techalerts/TA07-072A.html

Source: secalert@redhat.com

Third Party AdvisoryUS Government Resource

http://www.vmware.com/support/vi3/doc/esx-3069097-patch.html

Source: secalert@redhat.com

Broken Link

http://www.vmware.com/support/vi3/doc/esx-9986131-patch.html

Source: secalert@redhat.com

Broken Link

http://www.vupen.com/english/advisories/2006/4018

Source: secalert@redhat.com

Broken Link

http://www.vupen.com/english/advisories/2006/4329

Source: secalert@redhat.com

Broken Link

http://www.vupen.com/english/advisories/2007/0930

Source: secalert@redhat.com

Broken Link

http://www.vupen.com/english/advisories/2007/1332

Source: secalert@redhat.com

Broken Link

https://exchange.xforce.ibmcloud.com/vulnerabilities/29254

Source: secalert@redhat.com

Third Party AdvisoryVDB Entry

https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11387

Source: secalert@redhat.com

Broken Link

https://www.openwall.com/lists/oss-security/2024/07/28/3

Source: secalert@redhat.com

ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-06:22.openssh.asc (unsafe URL)