A sudo security update has been released for Slackware Linux 14.0, 14.1, 14.2, and -current to fix security issues.
slackware-security: sudo (SSA:2021-026-01)
[slackware-security] sudo (SSA:2021-026-01)
New sudo packages are available for Slackware 14.0, 14.1, 14.2, and -current to
fix security issues.
Here are the details from the Slackware 14.2 ChangeLog:
+--------------------------+
patches/packages/sudo-1.9.5p2-i586-1_slack14.2.txz: Upgraded.
When invoked as sudoedit, the same set of command line options
are now accepted as for "sudo -e". The -H and -P options are
now rejected for sudoedit and "sudo -e" which matches the sudo
1.7 behavior. This is part of the fix for CVE-2021-3156.
Fixed a potential buffer overflow when unescaping backslashes
in the command's arguments. Normally, sudo escapes special
characters when running a command via a shell (sudo -s or sudo
-i). However, it was also possible to run sudoedit with the -s
or -i flags in which case no escaping had actually been done,
making a buffer overflow possible. This fixes CVE-2021-3156.
For more information, see:
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3156
(* 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/sudo-1.9.5p2-i486-1_slack14.0.txz
Updated package for Slackware x86_64 14.0:
ftp://ftp.slackware.com/pub/slackware/slackware64-14.0/patches/packages/sudo-1.9.5p2-x86_64-1_slack14.0.txz
Updated package for Slackware 14.1:
ftp://ftp.slackware.com/pub/slackware/slackware-14.1/patches/packages/sudo-1.9.5p2-i486-1_slack14.1.txz
Updated package for Slackware x86_64 14.1:
ftp://ftp.slackware.com/pub/slackware/slackware64-14.1/patches/packages/sudo-1.9.5p2-x86_64-1_slack14.1.txz
Updated package for Slackware 14.2:
ftp://ftp.slackware.com/pub/slackware/slackware-14.2/patches/packages/sudo-1.9.5p2-i586-1_slack14.2.txz
Updated package for Slackware x86_64 14.2:
ftp://ftp.slackware.com/pub/slackware/slackware64-14.2/patches/packages/sudo-1.9.5p2-x86_64-1_slack14.2.txz
Updated package for Slackware -current:
ftp://ftp.slackware.com/pub/slackware/slackware-current/slackware/ap/sudo-1.9.5p2-i586-1.txz
Updated package for Slackware x86_64 -current:
ftp://ftp.slackware.com/pub/slackware/slackware64-current/slackware64/ap/sudo-1.9.5p2-x86_64-1.txz
MD5 signatures:
+-------------+
Slackware 14.0 package:
047bb22ce157548126d16430c3a374ef sudo-1.9.5p2-i486-1_slack14.0.txz
Slackware x86_64 14.0 package:
7fbd3e885d8cc9b3cee66cdefeeba9e3 sudo-1.9.5p2-x86_64-1_slack14.0.txz
Slackware 14.1 package:
261ca55be2533f11b224e806e1acd554 sudo-1.9.5p2-i486-1_slack14.1.txz
Slackware x86_64 14.1 package:
0a261cd2ba3aa541d294d69f4bed5c2f sudo-1.9.5p2-x86_64-1_slack14.1.txz
Slackware 14.2 package:
00df3b1ea402b263fbf63bd411f99a77 sudo-1.9.5p2-i586-1_slack14.2.txz
Slackware x86_64 14.2 package:
4f29ad52ed440334c591ee530362e384 sudo-1.9.5p2-x86_64-1_slack14.2.txz
Slackware -current package:
90296d19fb80c3fab70158febfba1d54 ap/sudo-1.9.5p2-i586-1.txz
Slackware x86_64 -current package:
a3c31d280a60d4ea59922a60410072d9 ap/sudo-1.9.5p2-x86_64-1.txz
Installation instructions:
+------------------------+
Upgrade the package as root:
# upgradepkg sudo-1.9.5p2-i586-1_slack14.2.txz
