3943 : OpenSSL ASN.1 Parser Invalid Encoding Handling Remote DoS
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2 1486 about 10 years ago about 1 year ago 6 times 90%

Timeline

Disclosure Date
2002-07-30

Description

OpenSSL's ASN.1 parser contains a flaw that may allow a malicious user to cause Denial of Service conditions. The issue is triggered when invalid ASN.1 encodings are supplied to the parser. It is possible that the flaw may allow crashing of OpenSSL, resulting in a loss of availability.

Classification

Location: Local Access Required, Remote / Network Access
Attack Type: Input Manipulation
Impact: Loss of Availability
Exploit: Exploit Public

Solution

Upgrade to version 0.9.6e or higher and recompile all applications that were statically linked to OpenSSL, as that has been reported to fix this vulnerability. It is also possible to correct the flaw by applying the vendor-supplied patch to affected versions.

Products

The OpenSSL Project
OpenSSL
0.9.1x
0.9.2x
0.9.3x
0.9.4x
0.9.5x
0.9.6
0.9.6a
0.9.6b
0.9.6c
0.9.6d
0.9.7-beta1
0.9.7-beta2
Novell, Inc.
iManager
2.02

References

Tools & Filters

11060 11875 12316 13538 13602 14973 15230 15231 18706 23161 23252 23253 23349 23350 23358 23369 23458 23483 23484 23491 23504 23590

Credit

  • Adi Stav - stavmercury.co.il -
  • James Yonan - jimntlp.com -

CVSSv2 Score

CVSSv2 Base Score = 9.3
Source: nvd.nist.gov | Generated: 2007-03-08 | Disagree? | There are 1 more: View All

Access_vector_2 Access_complexity_1 Authentication_2 Confidentiality_impact_2 Integrity_impact_2 Availability_impact_2

Comments

No Comments.

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