Slackware users on version 15.0 or the current branch should install new libxml2 packages to address several critical security vulnerabilities immediately. These updates specifically fix type confusion in c14n processing along with dangerous memory errors found within the Python bindings. Administrators can retrieve the updated packages from the OSU Open Source Lab or check other mirrors near you. Just run the upgrade command as root to apply the changes correctly.

libxml2 (SSA:2026-106-01)

libxml2 (SSA:2026-106-01)

libxml2 (SSA:2026-106-01)

New libxml2 packages are available for Slackware 15.0 and -current to
fix security issues.

Here are the details from the Slackware 15.0 ChangeLog:
+--------------------------+
patches/packages/libxml2-2.11.9-i586-9_slack15.0.txz: Rebuilt.
This update fixes security issues:
entities: copy children in xmlCopyEntity.
c14n: Fix Type confusion in xmlC14NProcessAttrsAxis.
python: Do not decref string after adding to the list
(double-free / use-after-free).
c14n: Reuse tmp_str, xmlStrcat reallocates *cur (double-free).
(* Security fix *)
+--------------------------+

Where to find the new packages:
+-----------------------------+

Thanks to the friendly folks at the OSU Open Source Lab
( http://osuosl.org) for donating FTP and rsync hosting
to the Slackware project! :-)

Also see the "Get Slack" section on http://slackware.com for
additional mirror sites near you.

Updated package for Slackware 15.0:
ftp://ftp.slackware.com/pub/slackware/slackware-15.0/patches/packages/libxml2-2.11.9-i586-9_slack15.0.txz

Updated package for Slackware x86_64 15.0:
ftp://ftp.slackware.com/pub/slackware/slackware64-15.0/patches/packages/libxml2-2.11.9-x86_64-9_slack15.0.txz

Updated package for Slackware -current:
ftp://ftp.slackware.com/pub/slackware/slackware-current/slackware/l/libxml2-2.15.3-i686-1.txz

Updated package for Slackware x86_64 -current:
ftp://ftp.slackware.com/pub/slackware/slackware64-current/slackware64/l/libxml2-2.15.3-x86_64-1.txz

MD5 signatures:
+-------------+

Slackware 15.0 package:
f83568b90cc9d2f2e89b47464dd9a50e libxml2-2.11.9-i586-9_slack15.0.txz

Slackware x86_64 15.0 package:
21f972d2b16e43b0a162e6926b09e042 libxml2-2.11.9-x86_64-9_slack15.0.txz

Slackware -current package:
a75191c535f987f0c994d4e768ba8ecf l/libxml2-2.15.3-i686-1.txz

Slackware x86_64 -current package:
7fd14a2fdb17c8bd454f36cd273051e1 l/libxml2-2.15.3-x86_64-1.txz

Installation instructions:
+------------------------+

Upgrade the package as root:
# upgradepkg libxml2-2.11.9-i586-9_slack15.0.txz

+-----+

Slackware Linux Security Team
http://slackware.com/gpg-key