A libxslt security update has been released for Slackware 14.0, 14.1, 14.2, 15.0, and -current.

slackware-security: libxslt (SSA:2022-059-02)

[slackware-security] libxslt (SSA:2022-059-02)

New libxslt packages are available for Slackware 14.0, 14.1, 14.2, 15.0,
and -current to fix security issues.

Here are the details from the Slackware 15.0 ChangeLog:
+--------------------------+
patches/packages/libxslt-1.1.35-i586-1_slack15.0.txz: Upgraded.
This update fixes bugs and the following security issues:
Fix use-after-free in xsltApplyTemplates
Fix memory leak in xsltDocumentElem (David King)
Fix memory leak in xsltCompileIdKeyPattern (David King)
Fix double-free with stylesheets containing entity nodes
For more information, see:
  https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30560
(* 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 14.0:
  ftp://ftp.slackware.com/pub/slackware/slackware-14.0/patches/packages/libxslt-1.1.35-i486-1_slack14.0.txz

Updated package for Slackware x86_64 14.0:
  ftp://ftp.slackware.com/pub/slackware/slackware64-14.0/patches/packages/libxslt-1.1.35-x86_64-1_slack14.0.txz

Updated package for Slackware 14.1:
  ftp://ftp.slackware.com/pub/slackware/slackware-14.1/patches/packages/libxslt-1.1.35-i486-1_slack14.1.txz

Updated package for Slackware x86_64 14.1:
  ftp://ftp.slackware.com/pub/slackware/slackware64-14.1/patches/packages/libxslt-1.1.35-x86_64-1_slack14.1.txz

Updated package for Slackware 14.2:
  ftp://ftp.slackware.com/pub/slackware/slackware-14.2/patches/packages/libxslt-1.1.35-i586-1_slack14.2.txz

Updated package for Slackware x86_64 14.2:
  ftp://ftp.slackware.com/pub/slackware/slackware64-14.2/patches/packages/libxslt-1.1.35-x86_64-1_slack14.2.txz

Updated package for Slackware 15.0:
  ftp://ftp.slackware.com/pub/slackware/slackware-15.0/patches/packages/libxslt-1.1.35-i586-1_slack15.0.txz

Updated package for Slackware x86_64 15.0:
  ftp://ftp.slackware.com/pub/slackware/slackware64-15.0/patches/packages/libxslt-1.1.35-x86_64-1_slack15.0.txz

Updated package for Slackware -current:
  ftp://ftp.slackware.com/pub/slackware/slackware-current/slackware/l/libxslt-1.1.35-i586-1.txz

Updated package for Slackware x86_64 -current:
  ftp://ftp.slackware.com/pub/slackware/slackware64-current/slackware64/l/libxslt-1.1.35-x86_64-1.txz

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

Slackware 14.0 package:
81cd981ddf3f6fb0d519754c41880388 libxslt-1.1.35-i486-1_slack14.0.txz

Slackware x86_64 14.0 package:
d9e0a70a14035f99509b4d99f2c96701 libxslt-1.1.35-x86_64-1_slack14.0.txz

Slackware 14.1 package:
392f009f4998c795a82720dde3b48fae libxslt-1.1.35-i486-1_slack14.1.txz

Slackware x86_64 14.1 package:
aa1ee1dde09d78fc4f93da6a18e1c166 libxslt-1.1.35-x86_64-1_slack14.1.txz

Slackware 14.2 package:
da0f1d5daac3996b314cd888f726c977 libxslt-1.1.35-i586-1_slack14.2.txz

Slackware x86_64 14.2 package:
52b7ab3de5b33db1573e662714db6e96 libxslt-1.1.35-x86_64-1_slack14.2.txz

Slackware 15.0 package:
b19a13a3e5dae095b6c49c097c27e2ba libxslt-1.1.35-i586-1_slack15.0.txz

Slackware x86_64 15.0 package:
675df1f60d69e6b3713691381fc78ac4 libxslt-1.1.35-x86_64-1_slack15.0.txz

Slackware -current package:
c88bbbaa9bf32af14bb5b7259e08fa40 l/libxslt-1.1.35-i586-1.txz

Slackware x86_64 -current package:
10c75c8ae4c68294be1af698993e405f l/libxslt-1.1.35-x86_64-1.txz

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

Upgrade the package as root:
# upgradepkg libxslt-1.1.35-i586-1_slack15.0.txz