New packages for libsodium are available to fix a security issue in Slackware 15.0 and -current. The update fixes an insufficient validation vulnerability in crypto_core_ed25519_is_valid_point() and can be found at the official Slackware FTP site. To upgrade, users should run the "upgradepkg libsodium-1.0.18-i586-4_slack15.0.txz" command as root. The security issue is documented on the CVE website with ID CVE-2025-69277.

libsodium (SSA:2026-006-01)

libsodium (SSA:2026-006-01)

libsodium (SSA:2026-006-01)

New libsodium packages are available for Slackware 15.0 and -current to
fix a security issue.

Here are the details from the Slackware 15.0 ChangeLog:
+--------------------------+
patches/packages/libsodium-1.0.18-i586-4_slack15.0.txz: Rebuilt.
This update fixes a security issue:
Insufficient validation in crypto_core_ed25519_is_valid_point().
For more information, see:
https://www.cve.org/CVERecord?id=CVE-2025-69277
(* 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/libsodium-1.0.18-i586-4_slack15.0.txz

Updated package for Slackware x86_64 15.0:
ftp://ftp.slackware.com/pub/slackware/slackware64-15.0/patches/packages/libsodium-1.0.18-x86_64-4_slack15.0.txz

Updated package for Slackware -current:
ftp://ftp.slackware.com/pub/slackware/slackware-current/slackware/l/libsodium-1.0.21-i686-1.txz

Updated package for Slackware x86_64 -current:
ftp://ftp.slackware.com/pub/slackware/slackware64-current/slackware64/l/libsodium-1.0.21-x86_64-1.txz

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

Slackware 15.0 package:
4e56ca202cc07c3f000545c9a3a34ada libsodium-1.0.18-i586-4_slack15.0.txz

Slackware x86_64 15.0 package:
d8dd6b355d9639006f429ff89e5035cd libsodium-1.0.18-x86_64-4_slack15.0.txz

Slackware -current package:
c262de38eb076fc6e77bf88da7bb51d4 l/libsodium-1.0.21-i686-1.txz

Slackware x86_64 -current package:
a736a796d68f408a6efe48b667a1b129 l/libsodium-1.0.21-x86_64-1.txz

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

Upgrade the package as root:
# upgradepkg libsodium-1.0.18-i586-4_slack15.0.txz

+-----+

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