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Sicherheit: Pufferüberlauf in sudo
Aktuelle Meldungen Distributionen
Name: Pufferüberlauf in sudo
ID: SSA:2021-026-01
Distribution: Slackware
Plattformen: Slackware -current, Slackware x86_64 -current, Slackware 14.0, Slackware x86_64 14.0, Slackware 14.1, Slackware x86_64 14.1, Slackware 14.2, Slackware x86_64 14.2
Datum: Di, 26. Januar 2021, 23:37
Referenzen: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3156
Applikationen: sudo

Originalnachricht


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[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:
sudo-1.9.5p2-i486-1_slack14.0.txz

Updated package for Slackware x86_64 14.0:
sudo-1.9.5p2-x86_64-1_slack14.0.txz

Updated package for Slackware 14.1:
sudo-1.9.5p2-i486-1_slack14.1.txz

Updated package for Slackware x86_64 14.1:
sudo-1.9.5p2-x86_64-1_slack14.1.txz

Updated package for Slackware 14.2:
sudo-1.9.5p2-i586-1_slack14.2.txz

Updated package for Slackware x86_64 14.2:
sudo-1.9.5p2-x86_64-1_slack14.2.txz

Updated package for Slackware -current:
sudo-1.9.5p2-i586-1.txz

Updated package for Slackware x86_64 -current:
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


+-----+

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

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