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CVE-2008-4109 Details

Description

A certain Debian patch for OpenSSH before 4.3p2-9etch3 on etch; before 4.6p1-1 on sid and lenny; and on other distributions such as SUSE uses functions that are not async-signal-safe in the signal handler for login timeouts, which allows remote attackers to cause a denial of service (connection slot exhaustion) via multiple login attempts. NOTE: this issue exists because of an incorrect fix for CVE-2006-5051.

Metrics

CVSS 3.x Severity and Vector Strings:

No CVSS 3.x data is available for this CVE.

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=498678	CVE
http://lists.opensuse.org/opensuse-security-announce/2008-10/msg00004.html	CVE
http://secunia.com/advisories/31885	CVE
http://secunia.com/advisories/32080	CVE
http://secunia.com/advisories/32181	CVE
https://exchange.xforce.ibmcloud.com/vulnerabilities/45202	CVE
http://www.debian.org/security/2008/dsa-1638	CVE	Patch
http://www.openwall.com/lists/oss-security/2024/07/01/3	CVE
http://www.securitytracker.com/id?1020891	CVE
http://www.ubuntu.com/usn/usn-649-1	CVE
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=498678	[email protected]
http://lists.opensuse.org/opensuse-security-announce/2008-10/msg00004.html	[email protected]
http://secunia.com/advisories/31885	[email protected]
http://secunia.com/advisories/32080	[email protected]
http://secunia.com/advisories/32181	[email protected]
https://exchange.xforce.ibmcloud.com/vulnerabilities/45202	[email protected]
http://www.debian.org/security/2008/dsa-1638	[email protected]	Patch
http://www.openwall.com/lists/oss-security/2024/07/01/3	[email protected]
http://www.securitytracker.com/id?1020891	[email protected]
http://www.ubuntu.com/usn/usn-649-1	[email protected]

see all 20 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-264	Permissions, Privileges, and Access Controls	[email protected]
NVD-CWE-noinfo	Insufficient Information to Classify Weakness	[email protected]

Affected Products

Product	Versions
debian linux	unknown unknown
CPE cpe:2.3:a:debian:linux:unknown:unknown:etch:::::* cpe:2.3:a:debian:linux:unknown:unknown:sid:::::* Remediation No remediation found in references.
openbsd openssh	<= 4.3p2 1.2 1.2.1 1.2.2 1.2.3
CPE cpe:2.3:a:openbsd:openssh:::::::: cpe:2.3:a:openbsd:openssh:1.2:::::::* cpe:2.3:a:openbsd:openssh:1.2.1:::::::* cpe:2.3:a:openbsd:openssh:1.2.2:::::::* cpe:2.3:a:openbsd:openssh:1.2.3:::::::* cpe:2.3:a:openbsd:openssh:1.2.27:::::::* cpe:2.3:a:openbsd:openssh:1.3:::::::* cpe:2.3:a:openbsd:openssh:1.5:::::::* cpe:2.3:a:openbsd:openssh:1.5.7:::::::* cpe:2.3:a:openbsd:openssh:1.5.8:::::::* cpe:2.3:a:openbsd:openssh:2:::::::* cpe:2.3:a:openbsd:openssh:2.1:::::::* cpe:2.3:a:openbsd:openssh:2.1.1:::::::* cpe:2.3:a:openbsd:openssh:2.2:::::::* cpe:2.3:a:openbsd:openssh:2.3:::::::* cpe:2.3:a:openbsd:openssh:2.3.1:::::::* cpe:2.3:a:openbsd:openssh:2.5:::::::* cpe:2.3:a:openbsd:openssh:2.5.1:::::::* cpe:2.3:a:openbsd:openssh:2.5.2:::::::* cpe:2.3:a:openbsd:openssh:2.9:::::::* cpe:2.3:a:openbsd:openssh:2.9.9:::::::* cpe:2.3:a:openbsd:openssh:2.9.9p2:::::::* cpe:2.3:a:openbsd:openssh:2.9p1:::::::* cpe:2.3:a:openbsd:openssh:2.9p2:::::::* cpe:2.3:a:openbsd:openssh:3.0:::::::* cpe:2.3:a:openbsd:openssh:3.0.1:::::::* cpe:2.3:a:openbsd:openssh:3.0.1p1:::::::* cpe:2.3:a:openbsd:openssh:3.0.2:::::::* cpe:2.3:a:openbsd:openssh:3.0.2p1:::::::* cpe:2.3:a:openbsd:openssh:3.0p1:::::::* cpe:2.3:a:openbsd:openssh:3.1:::::::* cpe:2.3:a:openbsd:openssh:3.1p1:::::::* cpe:2.3:a:openbsd:openssh:3.2:::::::* cpe:2.3:a:openbsd:openssh:3.2.2:::::::* cpe:2.3:a:openbsd:openssh:3.2.2p1:::::::* cpe:2.3:a:openbsd:openssh:3.2.3p1:::::::* cpe:2.3:a:openbsd:openssh:3.3:::::::* cpe:2.3:a:openbsd:openssh:3.3p1:::::::* cpe:2.3:a:openbsd:openssh:3.4:::::::* cpe:2.3:a:openbsd:openssh:3.4p1:::::::* cpe:2.3:a:openbsd:openssh:3.5:::::::* cpe:2.3:a:openbsd:openssh:3.5p1:::::::* cpe:2.3:a:openbsd:openssh:3.6:::::::* cpe:2.3:a:openbsd:openssh:3.6.1:::::::* cpe:2.3:a:openbsd:openssh:3.6.1p1:::::::* cpe:2.3:a:openbsd:openssh:3.6.1p2:::::::* cpe:2.3:a:openbsd:openssh:3.7:::::::* cpe:2.3:a:openbsd:openssh:3.7.1:::::::* cpe:2.3:a:openbsd:openssh:3.7.1p1:::::::* cpe:2.3:a:openbsd:openssh:3.7.1p2:::::::* cpe:2.3:a:openbsd:openssh:3.8:::::::* cpe:2.3:a:openbsd:openssh:3.8.1:::::::* cpe:2.3:a:openbsd:openssh:3.8.1p1:::::::* cpe:2.3:a:openbsd:openssh:3.9:::::::* cpe:2.3:a:openbsd:openssh:3.9.1:::::::* cpe:2.3:a:openbsd:openssh:3.9.1p1:::::::* cpe:2.3:a:openbsd:openssh:4.0:::::::* cpe:2.3:a:openbsd:openssh:4.0p1:::::::* cpe:2.3:a:openbsd:openssh:4.1:::::::* cpe:2.3:a:openbsd:openssh:4.1p1:::::::* cpe:2.3:a:openbsd:openssh:4.2:::::::* cpe:2.3:a:openbsd:openssh:4.2p1:::::::* cpe:2.3:a:openbsd:openssh:4.3:::::::* cpe:2.3:a:openbsd:openssh:4.3p1:::::::* cpe:2.3:a:openbsd:openssh:4.3p2:::::::* cpe:2.3:a:openbsd:openssh:4.4:::::::* cpe:2.3:a:openbsd:openssh:4.4p1:::::::* Remediation No remediation found in references.

Change History

8 change records found show changes

Date	Action	Recorded By
Jun 16, 2026	CVE Modified	CISA-ADP
Jun 16, 2026	CVE Modified	[email protected]
Apr 23, 2026	Status Change	[email protected]
Nov 21, 2024	CVE Modified	CVE
Jul 1, 2024	CVE Modified	[email protected]
May 14, 2024	CVE Modified	[email protected]
Aug 8, 2017	CVE Modified	[email protected]
Sep 18, 2008	Initial Analysis	[email protected]