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slackwareSlackware Linux ProjectSSA-2021-026-01
HistoryJan 26, 2021 - 9:34 p.m.

[slackware-security] sudo

2021-01-2621:34:51
Slackware Linux Project
www.slackware.com
54

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

7.2 High

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:L/AC:L/Au:N/C:C/I:C/A:C

0.971 High

EPSS

Percentile

99.8%

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://vulners.com/cve/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

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

7.2 High

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:L/AC:L/Au:N/C:C/I:C/A:C

0.971 High

EPSS

Percentile

99.8%