Slackware Linux has released urgent security updates for the xz package to address critical flaws in versions 15.0 and -current. The developers fixed a buffer overflow inside lzma_index_append() alongside some memory access issues found when handling files. You can get the new packages from the FTP site or find mirrors on their web page if you prefer a closer server location. Just upgrade as root using upgradepkg when ready.

xz (SSA:2026-090-01)

xz (SSA:2026-090-01)

xz (SSA:2026-090-01)

New xz 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/xz-5.2.13-i586-1_slack15.0.txz: Upgraded.
This update fixes security issues:
Fix a buffer overflow in lzma_index_append().
Fix invalid memory access in --files and --files0.
For more information, see:
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-34743
(* 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/xz-5.2.13-i586-1_slack15.0.txz

Updated package for Slackware x86_64 15.0:
ftp://ftp.slackware.com/pub/slackware/slackware64-15.0/patches/packages/xz-5.2.13-x86_64-1_slack15.0.txz

Updated package for Slackware -current:
ftp://ftp.slackware.com/pub/slackware/slackware-current/slackware/a/xz-5.8.3-i686-1.txz

Updated package for Slackware x86_64 -current:
ftp://ftp.slackware.com/pub/slackware/slackware64-current/slackware64/a/xz-5.8.3-x86_64-1.txz

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

Slackware 15.0 package:
e4c639f80607e5ae3210fd295ad3fed5 xz-5.2.13-i586-1_slack15.0.txz

Slackware x86_64 15.0 package:
79baec2f238b7df23fa0ca0cda12c352 xz-5.2.13-x86_64-1_slack15.0.txz

Slackware -current package:
6b4ff199f4443be6aad22d1fd227f60b a/xz-5.8.3-i686-1.txz

Slackware x86_64 -current package:
96155062f601d6c67fab2acb1e60b76b a/xz-5.8.3-x86_64-1.txz

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

Upgrade the package as root:
# upgradepkg xz-5.2.13-i586-1_slack15.0.txz

+-----+

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