29264 : OpenSSH Signal Handler Pre-authentication Race Condition Code Execution
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Info

Last Modified

about 1 year ago

Percent Complete

100%

Disclosure

Sep 28, 2006

Discovery

Unknown

Dates

Exploit

Unknown

Solution

Unknown

Description

OpenSSH (portable) contains a flaw that may allow a remote attacker to execute arbitrary code under some circumstances. When configured with GSSAPI authentication, the signal handler is prone to a race condition that could be exploited to conduct a Denial of Service and possibly execute arbitrary code. No further details have been provided. Note: On OpenSSH, this vulnerability can only be leveraged for a remote Denial of Service. The conditions for remote exploitation to execute arbitrary code are considered to be unlikely.

Classification

Location: Remote / Network Access
Attack Type: Denial of Service
Impact: Loss of Availability
Exploit: Exploit Unknown
Disclosure: OSVDB Verified

Solution

Upgrade to version 4.4 or higher, as it has been reported to fix this vulnerability. An upgrade is required as there are no known workarounds.

Products

OpenSSH
Watch-list
OpenSSH
Watch-list
4.3

References

Tools & Filters

22466 22468 22473 22474 22731 23661 23671 24029 24050 24051 24565 24811 24926 27365 27935 29538
3751 3754 3947

Credit

  • Mark Dowd - Avertavertlabs.com - McAfee Avert(tm) Labs

CVSSv2 Score

CVSSv2 Base Score = 5.0
Source: nvd.nist.gov | Generated: 2008-09-18 | Disagree? | There are 1 more: View All

Access_vector_2 Access_complexity_2 Authentication_2 Confidentiality_impact_0 Integrity_impact_0 Availability_impact_1

Blogs

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Comments

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