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Pardus: 2010-119: OpenSSL: Use-after-free
Posted by Benjamin D. Thomas
A vulnerability has been fixed in OpenSSL, which can be exploited by malicious people to cause a DoS (Denial of Service) and potentially compromise an application using the library.
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Pardus Linux Security Advisory 2010-119 security@pardus.org.tr
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Date: 2010-09-03
Severity: 3
Type: Local
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Summary
======
A vulnerability has been fixed in OpenSSL, which can be exploited by
malicious people to cause a DoS (Denial of Service) and potentially
compromise an application using the library.
Description
==========
CVE-2010-2939:
Double free vulnerability in the ssl3_get_key_exchange function in the
OpenSSL client (ssl/s3_clnt.c) in OpenSSL 1.0.0a, 0.9.8, 0.9.7, and
possibly other versions, when using ECDH, allows context-dependent
attackers to cause a denial of service (crash) and possibly execute
arbitrary code via a crafted private key with an invalid prime. NOTE:
some sources refer to this as a use-after-free issue.
Affected packages:
Pardus 2009:
openssl, all before 0.9.8k-29-12
Resolution
=========
There are update(s) for openssl. You can update them via Package Manager
or with a single command from console:
pisi up openssl
References
=========
* http://bugs.pardus.org.tr/show_bug.cgi?id982
* http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2010-2939
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