Bug 621882

Summary:	<mail-mta/postfix-3.1.6: privilege escalation via postfix set-gid programs
Product:	Gentoo Security	Reporter:	Thomas Deutschmann (RETIRED) <whissi>
Component:	Vulnerabilities	Assignee:	Gentoo Security <security>
Status:	RESOLVED FIXED
Severity:	critical	CC:	net-mail+disabled
Priority:	Normal	Flags:	stable-bot: sanity-check+
Version:	unspecified
Hardware:	All
OS:	Linux
URL:	http://www.postfix.org/announcements/postfix-3.2.2.html
Whiteboard:	A1 [glsa]
Package list:	mail-mta/postfix-3.1.6	Runtime testing required:	---

Description Thomas Deutschmann (RETIRED) gentoo-dev

2017-06-16 07:57:51 UTC

From http://www.postfix.org/announcements/postfix-3.2.2.html:
> Fixed in all supported releases:
> 
>   Security: Berkeley DB versions 2 and later try to read settings from a
>   file DB_CONFIG in the current directory. This undocumented feature may
>   introduce undisclosed vulnerabilities resulting in privilege
>   escalation with Postfix set-gid programs (postdrop, postqueue) before
>   they chdir to the Postfix queue directory, and with the postmap and
>   postalias commands depending on whether the user's current directory
>   is writable by other users. This fix does not change Postfix behavior
>   for Berkeley DB versions < 3, but it does reduce postmap and
>   postalias 'create' performance with Berkeley DB versions 3.0 .. 4.6.

Additional reference: http://seclists.org/oss-sec/2017/q2/452

Comment 1 Thomas Deutschmann (RETIRED) gentoo-dev

2017-06-16 08:01:46 UTC

@ Arches,

please test and mark stable: =mail-mta/postfix-3.1.6

Comment 2 Agostino Sarubbo gentoo-dev

2017-06-16 14:10:59 UTC

amd64 stable

Comment 3 Sergei Trofimovich (RETIRED) gentoo-dev

2017-06-17 15:09:39 UTC

ia64 stable

Comment 4 Agostino Sarubbo gentoo-dev

2017-06-17 17:26:57 UTC

x86 stable

Comment 5 Tobias Klausmann (RETIRED) gentoo-dev

2017-06-20 14:59:31 UTC

Stable on alpha.

Comment 6 Agostino Sarubbo gentoo-dev

2017-06-21 12:05:20 UTC

ppc stable

Comment 7 Agostino Sarubbo gentoo-dev

2017-06-21 12:18:35 UTC

ppc64 stable

Comment 8 Markus Meier gentoo-dev

2017-06-23 04:40:41 UTC

arm stable

Comment 9 Agostino Sarubbo gentoo-dev

2017-07-07 09:09:35 UTC

sparc stable

Comment 10 Christopher Díaz Riveros (RETIRED) gentoo-dev

2017-08-17 00:26:33 UTC

Arches, please finish stabilizing hppa

Gentoo Security Padawan
ChrisADR

Comment 11 Sergei Trofimovich (RETIRED) gentoo-dev

2017-09-21 09:30:51 UTC

hppa stable.

Last arch is done.

Comment 12 Christopher Díaz Riveros (RETIRED) gentoo-dev

2017-09-21 15:44:13 UTC

New GLSA Request filed.

@Maintainers please remove vulnerable versions.

Gentoo Security Padawan
ChrisADR

Comment 13 GLSAMaker/CVETool Bot gentoo-dev

2017-09-24 15:52:04 UTC

This issue was resolved and addressed in
 GLSA 201709-20 at https://security.gentoo.org/glsa/201709-20
by GLSA coordinator Aaron Bauman (b-man).

Comment 14 Aaron Bauman (RETIRED) gentoo-dev

2017-09-24 15:53:10 UTC

re-opened for cleanup