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Date: Fri, 31 Jan 2020 13:15:53 -0800 (PST)
From: Slackware Security Team <security@...ckware.com>
To: slackware-security@...ckware.com
Subject: [slackware-security]  sudo (SSA:2020-031-01)


-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

[slackware-security]  sudo (SSA:2020-031-01)

New sudo packages are available for Slackware 14.0, 14.1, 14.2,
and -current to fix a security issue.


Here are the details from the Slackware 14.2 ChangeLog:
+--------------------------+
patches/packages/sudo-1.8.31-i586-1_slack14.2.txz:  Upgraded.
  This update fixes a security issue:
  In Sudo before 1.8.31, if pwfeedback is enabled in /etc/sudoers, users can
  trigger a stack-based buffer overflow in the privileged sudo process.
  (pwfeedback is a default setting in some Linux distributions; however, it
  is not the default for upstream or in Slackware, and would exist only if
  enabled by an administrator.) The attacker needs to deliver a long string
  to the stdin of getln() in tgetpass.c.
  For more information, see:
    https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-18634
  (* 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-1.8.31-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-1.8.31-x86_64-1_slack14.0.txz

Updated package for Slackware 14.1:
ftp://ftp.slackware.com/pub/slackware/slackware-14.1/patches/packages/sudo-1.8.31-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-1.8.31-x86_64-1_slack14.1.txz

Updated package for Slackware 14.2:
ftp://ftp.slackware.com/pub/slackware/slackware-14.2/patches/packages/sudo-1.8.31-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-1.8.31-x86_64-1_slack14.2.txz

Updated package for Slackware -current:
ftp://ftp.slackware.com/pub/slackware/slackware-current/slackware/ap/sudo-1.8.31-i586-1.txz

Updated package for Slackware x86_64 -current:
ftp://ftp.slackware.com/pub/slackware/slackware64-current/slackware64/ap/sudo-1.8.31-x86_64-1.txz


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

Slackware 14.0 package:
3a11f049390127f33463fa417e1fa056  sudo-1.8.31-i486-1_slack14.0.txz

Slackware x86_64 14.0 package:
062c43b8fe45b3ee9b8266c55d205886  sudo-1.8.31-x86_64-1_slack14.0.txz

Slackware 14.1 package:
47d24d47ba52cf740ab2d272abd5aac7  sudo-1.8.31-i486-1_slack14.1.txz

Slackware x86_64 14.1 package:
5132fffc0dff049e181742308ff01bee  sudo-1.8.31-x86_64-1_slack14.1.txz

Slackware 14.2 package:
afe33f494b86169f3164a65ac63f7585  sudo-1.8.31-i586-1_slack14.2.txz

Slackware x86_64 14.2 package:
cdcb11096268b5f6b9eb1f6bcefdbb4d  sudo-1.8.31-x86_64-1_slack14.2.txz

Slackware -current package:
f9d32384c3d4aafbb7e2bef19d36810b  ap/sudo-1.8.31-i586-1.txz

Slackware x86_64 -current package:
f2d91e52d9e02ae701cabfd2f586ff07  ap/sudo-1.8.31-x86_64-1.txz


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

Upgrade the package as root:
# upgradepkg sudo-1.8.31-i586-1_slack14.2.txz


+-----+

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

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