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CVE-2008-4109

Date: September 17, 2008

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.

Severity Score

Related Resources (11)

https://nvd.nist.gov/vuln/detail/CVE-2008-4109
http://www.securitytracker.com/id?1020891
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=498678
https://exchange.xforce.ibmcloud.com/vulnerabilities/45202
http://lists.opensuse.org/opensuse-security-announce/2008-10/msg00004.html
http://secunia.com/advisories/32181
http://secunia.com/advisories/32080
http://secunia.com/advisories/31885
http://www.debian.org/security/2008/dsa-1638
http://www.ubuntu.com/usn/usn-649-1
https://www.mend.io/vulnerability-database/CVE-2008-4109

Severity Score

Weakness Type (CWE)

Permissions, Privileges, and Access Control

CWE-264

Insufficient Information

NVD-CWE-noinfo

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): LOW

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): PARTIAL
Additional information:

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