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[slackware-security] mozilla-thunderbird (SSA:2026-047-04)

Posted on 17 February 2026
Slackware Security

[slackware-security] mozilla-thunderbird (SSA:2026-047-04)

New mozilla-thunderbird 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/mozilla-thunderbird-140.7.2esr-i686-1_slack15.0.txz: Upgraded.
This update contains a security fix:
Heap buffer overflow in libvpx.
For more information, see:
https://www.mozilla.org/en-US/thunderbird/140.7.2esr/releasenotes/
https://www.mozilla.org/en-US/security/advisories/mfsa2026-11/
https://www.cve.org/CVERecord?id=CVE-2026-2447
(* 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/mozilla-thunderbird-140.7.2esr-i686-1_slack15.0.txz

Updated package for Slackware x86_64 15.0:
ftp://ftp.slackware.com/pub/slackware/slackware64-15.0/patches/packages/mozilla-thunderbird-140.7.2esr-x86_64-1_slack15.0.txz

Updated package for Slackware -current:
ftp://ftp.slackware.com/pub/slackware/slackware-current/slackware/xap/mozilla-thunderbird-140.7.2esr-i686-1.txz

Updated package for Slackware x86_64 -current:
ftp://ftp.slackware.com/pub/slackware/slackware64-current/slackware64/xap/mozilla-thunderbird-140.7.2esr-x86_64-1.txz


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

Slackware 15.0 package:
d9e5e02ffc93e069f0da35af2416d791 mozilla-thunderbird-140.7.2esr-i686-1_slack15.0.txz

Slackware x86_64 15.0 package:
0973e09576099cd1ca7e60c4ab9af749 mozilla-thunderbird-140.7.2esr-x86_64-1_slack15.0.txz

Slackware -current package:
cc6c3bea9160ef3e27fe8e676b988527 xap/mozilla-thunderbird-140.7.2esr-i686-1.txz

Slackware x86_64 -current package:
d4f235f9fe83e7c4d2c8f1573538857c xap/mozilla-thunderbird-140.7.2esr-x86_64-1.txz


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

Upgrade the package as root:
# upgradepkg mozilla-thunderbird-140.7.2esr-i686-1_slack15.0.txz


+-----+

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

 

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