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CVE-2008-4109

N/A

Published: September 17, 2008 at 06:06 PM UTC

Updated: June 16, 2026 at 10:57 PM UTC

1 product affected across 1 vendorOpenSSH· also runs on 1 platform

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Severity

N/A

Exploit prediction

EPSS 28%

SSVC

No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

OpenSSH · Openbsd

95%

v ≤ 4.3p2v ≤ 4.61.2 1.2.1 1.2.2 1.2.27 1.2.3 1.3 1.5 1.5.7 1.5.8 2 2.1 2.1.1 2.2 2.3 2.3.1 2.5 2.5.1 2.5.2 2.9 2.9.9 2.9.9p2 2.9p1 2.9p2 3.0 3.0.1 3.0.1p1 3.0.2 3.0.2p1 3.0p1 3.1 3.1p1 3.2 3.2.2 3.2.2p1 3.2.3p1 3.3 3.3p1 3.4 3.4p1 3.5 3.5p1 3.6 3.6.1 3.6.1p1 3.6.1p2 3.7 3.7.1 3.7.1p1 3.7.1p2 3.8 3.8.1 3.8.1p1 3.9 3.9.1 3.9.1p1 4.0 4.0p1 4.1 4.1p1 4.2 4.2p1 4.3 4.3p1 4.3p2 4.4 4.4p1

debian-linux (environment)

Runs on — not affected

The affected product only carries this flaw when running on these platforms. The platforms themselves are not vulnerable.

Linux · Debian

95%

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (10)

Source: [email protected]

http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=498678

Vendor Advisoryx_refsource_SUSE

Source: [email protected]

http://lists.opensuse.org/opensuse-security-announce/2008-10/msg00004.html

Third Party Advisory

Source: [email protected]

http://secunia.com/advisories/31885

Third Party Advisory

Source: [email protected]

http://secunia.com/advisories/32080

Third Party Advisory

Source: [email protected]

http://secunia.com/advisories/32181

Vendor AdvisoryPatch

Source: [email protected]

http://www.debian.org/security/2008/dsa-1638

Mailing List

Source: [email protected]

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

VDB Entry

Source: [email protected]

http://www.securitytracker.com/id?1020891

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5MEDIUM[email protected]

Confidentiality: NONE
Integrity: NONE
Availability: PARTIAL

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-264NVD-CWE-noinfo

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