CVE-2006-4924: High severity OpenBSD OpenSSH vulnerability

Published Sep 27, 2006
·
Updated

sshd in OpenSSH before 4.4, when using the version 1 SSH protocol, allows remote attackers to cause a denial of service (CPU consumption) via an SSH packet that contains duplicate blocks, which is not properly handled by the CRC compensation attack detector.

Affected Software

56 affected components
OpenBSD OpenSSH=3.8
OpenBSD OpenSSH=3.8.1p1
OpenBSD OpenSSH=3.2.2
OpenBSD OpenSSH=3.1
OpenBSD OpenSSH=3.0.2p1
OpenBSD OpenSSH=3.8.1
OpenBSD OpenSSH=2.1.1
OpenBSD OpenSSH=3.7.1p2
OpenBSD OpenSSH=3.2.3p1
OpenBSD OpenSSH=3.1p1
OpenBSD OpenSSH=2.5.1
OpenBSD OpenSSH=2.9.9p2
OpenBSD OpenSSH=3.6.1p2
OpenBSD OpenSSH=3.9
OpenBSD OpenSSH=3.0
OpenBSD OpenSSH=1.2.1
OpenBSD OpenSSH=2.2
OpenBSD OpenSSH=3.2
OpenBSD OpenSSH=3.6
OpenBSD OpenSSH=1.2.3
OpenBSD OpenSSH=3.7
OpenBSD OpenSSH=4.0p1
OpenBSD OpenSSH=3.5p1
OpenBSD OpenSSH=3.0.1p1
OpenBSD OpenSSH=3.7.1p1
OpenBSD OpenSSH=2.1
OpenBSD OpenSSH=1.2
OpenBSD OpenSSH=3.3
OpenBSD OpenSSH=3.2.2p1
OpenBSD OpenSSH=3.9.1p1
OpenBSD OpenSSH=3.0.2
OpenBSD OpenSSH=3.4p1
OpenBSD OpenSSH=3.6.1p1
OpenBSD OpenSSH=3.0.1
OpenBSD OpenSSH=2.9.9
OpenBSD OpenSSH=3.6.1
OpenBSD OpenSSH=4.1p1
OpenBSD OpenSSH=1.2.2
OpenBSD OpenSSH=4.2p1
OpenBSD OpenSSH=2.9p1
OpenBSD OpenSSH=2.9
OpenBSD OpenSSH=3.7.1
OpenBSD OpenSSH=1.2.27
OpenBSD OpenSSH=4.2
OpenBSD OpenSSH=2.5.2
OpenBSD OpenSSH=2.3
OpenBSD OpenSSH=3.4
OpenBSD OpenSSH=4.3p1
OpenBSD OpenSSH=3.5
OpenBSD OpenSSH=2.5
OpenBSD OpenSSH=3.0p1
OpenBSD OpenSSH=3.3p1
OpenBSD OpenSSH=4.3
OpenBSD OpenSSH=4.0
OpenBSD OpenSSH=3.9.1
OpenBSD OpenSSH=2.9p2

Event History

Sep 27, 2006
CVE Published
via MITRE·01:00 AM
Data Sourced
via MITRE·01:00 AM
Description
Data Sourced
via NVD·01:07 AM
RemedyDescriptionSeverityWeaknessAffected Software

Frequently Asked Questions

1

What is the severity of CVE-2006-4924?

CVE-2006-4924 is classified as a high severity vulnerability due to its potential to cause denial of service.

2

How does CVE-2006-4924 affect OpenSSH?

CVE-2006-4924 allows remote attackers to consume CPU resources, leading to denial of service via specially crafted SSH packets.

3

Which versions of OpenSSH are affected by CVE-2006-4924?

CVE-2006-4924 affects versions of OpenSSH prior to 4.4 that utilize SSH protocol version 1.

4

How can I mitigate CVE-2006-4924?

Mitigation for CVE-2006-4924 involves upgrading to OpenSSH version 4.4 or later, which includes fixes for this vulnerability.

5

Is CVE-2006-4924 related to other vulnerabilities in SSH?

While CVE-2006-4924 specifically targets SSH protocol version 1, it highlights underlying weaknesses in older SSH implementations that may be exploited.

Contact

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