A libarchive security update has been released for Slackware 14.1, 14.2, 15.0, and -current to fix security issues.

slackware-security: libarchive (SSA:2022-098-01)

[slackware-security] libarchive (SSA:2022-098-01)

New libarchive packages are available for Slackware 14.1, 14.2, 15.0,
and -current to fix security issues.

Here are the details from the Slackware 15.0 ChangeLog:
+--------------------------+
patches/packages/libarchive-3.6.1-i586-1_slack15.0.txz: Upgraded.
This is a bugfix and security release.
Security fixes:
7zip reader: fix PPMD read beyond boundary.
ZIP reader: fix possible out of bounds read.
ISO reader: fix possible heap buffer overflow in read_children().
RARv4 redaer: fix multiple issues in RARv4 filter code (introduced in
libarchive 3.6.0).
Fix heap use after free in archive_read_format_rar_read_data().
Fix null dereference in read_data_compressed().
Fix heap user after free in run_filters().
(* 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 14.1:
  ftp://ftp.slackware.com/pub/slackware/slackware-14.1/patches/packages/libarchive-3.6.1-i486-1_slack14.1.txz

Updated package for Slackware x86_64 14.1:
  ftp://ftp.slackware.com/pub/slackware/slackware64-14.1/patches/packages/libarchive-3.6.1-x86_64-1_slack14.1.txz

Updated package for Slackware 14.2:
  ftp://ftp.slackware.com/pub/slackware/slackware-14.2/patches/packages/libarchive-3.6.1-i586-1_slack14.2.txz

Updated package for Slackware x86_64 14.2:
  ftp://ftp.slackware.com/pub/slackware/slackware64-14.2/patches/packages/libarchive-3.6.1-x86_64-1_slack14.2.txz

Updated package for Slackware 15.0:
  ftp://ftp.slackware.com/pub/slackware/slackware-15.0/patches/packages/libarchive-3.6.1-i586-1_slack15.0.txz

Updated package for Slackware x86_64 15.0:
  ftp://ftp.slackware.com/pub/slackware/slackware64-15.0/patches/packages/libarchive-3.6.1-x86_64-1_slack15.0.txz

Updated package for Slackware -current:
  ftp://ftp.slackware.com/pub/slackware/slackware-current/slackware/l/libarchive-3.6.1-i586-1.txz

Updated package for Slackware x86_64 -current:
  ftp://ftp.slackware.com/pub/slackware/slackware64-current/slackware64/l/libarchive-3.6.1-x86_64-1.txz

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

Slackware 14.1 package:
92f511489c8d2ead6cc3cda79eae2135 libarchive-3.6.1-i486-1_slack14.1.txz

Slackware x86_64 14.1 package:
5c3650ceafa4268f013de7e24fa03e09 libarchive-3.6.1-x86_64-1_slack14.1.txz

Slackware 14.2 package:
44dddbfb5b16435a349ab7862c3f2dd0 libarchive-3.6.1-i586-1_slack14.2.txz

Slackware x86_64 14.2 package:
79b95b91f09655923de1a0d5fccbb536 libarchive-3.6.1-x86_64-1_slack14.2.txz

Slackware 15.0 package:
b792ffcf8e2c948e1277c19f90498bab libarchive-3.6.1-i586-1_slack15.0.txz

Slackware x86_64 15.0 package:
7a5bb83a67a78e7b7af0a47f1fc3391e libarchive-3.6.1-x86_64-1_slack15.0.txz

Slackware -current package:
848794aa1c4b7da6f998b4b074745986 l/libarchive-3.6.1-i586-1.txz

Slackware x86_64 -current package:
4d57b10b4428a5f26aaa76fede077691 l/libarchive-3.6.1-x86_64-1.txz

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

Upgrade the package as root:
# upgradepkg libarchive-3.6.1-i586-1_slack15.0.txz