Red Hat Bugzilla – Bug 207276
CVE-2006-2937 OpenSSL ASN1 DoS
Last modified: 2008-01-29 05:59:46 EST
Dr S N Henson of the OpenSSL core team and Open Network Security recently
developed an ASN1 test suite for NISCC (www.niscc.gov.uk). When the test suite
was run against OpenSSL a denial of service vulnerability was discovered.
During the parsing of certain invalid ASN1 structures an error condition is
mishandled. This can result in an infinite loop which consumes system memory.
Any code which uses OpenSSL to parse ASN1 data from untrusted sources is
affected. This includes SSL servers which enable client authentication and
This issue affects 0.9.7 and 0.9.8 but not 0.9.6 and earlier
Embargo until 20060928
Created attachment 136729 [details]
proposed patch CVE-2006-2937
removing embargo, public at http://www.openssl.org/news/secadv_20060928.txt
An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on the solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.