[Pkg-openssl-devel] Bug#575433: openssl: OpenSSL does not check for a NULL return value from bn_wexpand function calls

A. Maitland Bottoms bottoms at debian.org
Thu Mar 25 18:45:41 UTC 2010


Package: openssl
Version: 0.9.8g-15+lenny6
Tags: lenny,security,patch

This bug report is based upon CVE-2009-3245
OpenSSL before 0.9.8m does not check for a NULL return value from bn_wexpand function calls in (1) crypto/bn/bn_div.c, (2) crypto/bn/bn_gf2m.c, (3) crypto/ec/ec2_smpl.c, and (4) engines/e_ubsec.c, which 
has unspecified impact and context-dependent attack vectors.

http://security-tracker.debian.org/tracker/CVE-2009-3245

While the security-tracker includes a "Minor issue" comment in the notes, the CVE
states "NVD severity	   high (attack range: remote)" so perhaps there should
be a security update for the version in Debian stable.

The upstream fixes are available, visible from
http://cvs.openssl.org/chngview?cn=19309

and that changeset applies cleanly to the .c files in the stable
Debian 0.9.8g-15+lenny6 source. And is attached to this message.

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