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[slackware-security] expat (SSA:2025-260-01)

Posted on 18 September 2025
Slackware Security

[slackware-security] expat (SSA:2025-260-01)

New expat 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/expat-2.7.2-i586-1_slack15.0.txz: Upgraded.
This update fixes a security issue:
Disallow use of disproportional amounts of dynamic memory from within an
Expat parser (e.g. previously a ~250 KiB sized document was able to cause
allocation of ~800 MiB from the heap, i.e. an "amplification" of factor
~3,300); once a threshold (that defaults to 64 MiB) is reached, a maximum
amplification factor (that defaults to 100.0) is enforced, and violating
documents are rejected with an out-of-memory error.
For more information, see:
https://www.cve.org/CVERecord?id=CVE-2025-59375
(* 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/expat-2.7.2-i586-1_slack15.0.txz

Updated package for Slackware x86_64 15.0:
ftp://ftp.slackware.com/pub/slackware/slackware64-15.0/patches/packages/expat-2.7.2-x86_64-1_slack15.0.txz

Updated package for Slackware -current:
ftp://ftp.slackware.com/pub/slackware/slackware-current/slackware/l/expat-2.7.2-i686-1.txz

Updated package for Slackware x86_64 -current:
ftp://ftp.slackware.com/pub/slackware/slackware64-current/slackware64/l/expat-2.7.2-x86_64-1.txz


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

Slackware 15.0 package:
fa51f57c6895ed0eda294c1552b017fc expat-2.7.2-i586-1_slack15.0.txz

Slackware x86_64 15.0 package:
e0473fd9bf3f189b09a759f58eca320d expat-2.7.2-x86_64-1_slack15.0.txz

Slackware -current package:
c03911b55ade23b01518db14264d0c24 l/expat-2.7.2-i686-1.txz

Slackware x86_64 -current package:
ca8c71781190d408c6362512716d9898 l/expat-2.7.2-x86_64-1.txz


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

Upgrade the package as root:
# upgradepkg expat-2.7.2-i586-1_slack15.0.txz


+-----+

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

 

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