REDHAT-BUG-804920
First published: Tue Mar 20 2012(Updated: )
libtasn1 version 2.12 was released fixing the following issue: - Corrected DER decoding issue (reported by Matthew Hall). Added self check to detect the problem, see tests/Test_overflow.c. This problem can lead to at least remotely triggered crashes, see further analysis on the libtasn1 mailing list. <a href="http://thread.gmane.org/gmane.comp.gnu.libtasn1.general/53">http://thread.gmane.org/gmane.comp.gnu.libtasn1.general/53</a> Upstream and few limited details are available at: <a href="http://thread.gmane.org/gmane.comp.gnu.libtasn1.general/54">http://thread.gmane.org/gmane.comp.gnu.libtasn1.general/54</a> The behavior of asn1_get_length_der was changed to protect against accidental incorrect use, if though it was previously "working properly and as documented".
| Affected Software | Affected Version | How to fix |
|---|---|---|
| libtasn1 (GNU) |
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Reference Links
- http://thread.gmane.org/gmane.comp.gnu.libtasn1.general/53
- http://thread.gmane.org/gmane.comp.gnu.libtasn1.general/54
- http://git.savannah.gnu.org/cgit/libtasn1.git/tree/tests/Test_overflow.c
- http://article.gmane.org/gmane.comp.encryption.gpg.gnutls.devel/5957
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=804920#c2
- http://git.savannah.gnu.org/gitweb/?p=gnutls.git;a=commit;h=88138dc44fc00f2887956d71e0febd2656e1fd9f
- http://www.openwall.com/lists/oss-security/2012/03/20/8
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=805442
- https://rhn.redhat.com/errata/RHSA-2012-0428.html
- https://rhn.redhat.com/errata/RHSA-2012-0427.html
- https://rhn.redhat.com/errata/RHSA-2012-0488.html
- https://rhn.redhat.com/errata/RHSA-2012-0531.html
- https://bugzilla.redhat.com/show_bug.cgi/attachment.cgi?id=712481
- https://bugzilla.redhat.com/show_bug.cgi/attachment.cgi?id=712481&action=edit
- https://bugzilla.redhat.com/show_bug.cgi?id=804920
- collector/redhat-bugzilla
- alias/CVE-2012-1569
- agent/type
- agent/first-publish-date
- agent/last-modified-date
- agent/severity
- agent/description
- agent/references
- agent/softwarecombine
- agent/event
- agent/tags
- agent/guess-ai
- agent/software-canonical-lookup
- agent/software-canonical-lookup-request
- vendor/gnu
- canonical/libtasn1 (gnu)