Secunia Security Advisory - Some vulnerabilities have been reported in Network Security Services, which can potentially be exploited by malicious people to bypass certain security restrictions or to compromise a vulnerable system.
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TITLE:
Network Security Services Multiple Vulnerabilities
SECUNIA ADVISORY ID:
SA36093
VERIFY ADVISORY:
http://secunia.com/advisories/36093/
DESCRIPTION:
Some vulnerabilities have been reported in Network Security Services,
which can potentially be exploited by malicious people to bypass
certain security restrictions or to compromise a vulnerable system.
1) An error in the regular expression parser when matching common
names in certificates can be exploited to cause a heap-based buffer
overflow, e.g. via a specially crafted certificate signed by a
trusted CA or when a user accepts a specially crafted certificate.
Successful exploitation may allow execution of arbitrary code.
2) An error exists in the parsing of certain certificate fields,
which can be exploited to e.g. get a client to accept a specially
crafted certificate by mistake.
SOLUTION:
Update to version 3.12.3 or later.
PROVIDED AND/OR DISCOVERED BY:
Red Hat credits:
1) Moxie Marlinspike
2) Dan Kaminsky
ORIGINAL ADVISORY:
https://bugzilla.redhat.com/show_bug.cgi?id=512912
https://bugzilla.redhat.com/show_bug.cgi?id=510251
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