Bug 903301

Summary:	haproxy: Fails to properly drop supplementary groups after setuid / setgid calls
Product:	[Fedora] Fedora EPEL	Reporter:	Jan Lieskovsky <jlieskov>
Component:	haproxy	Assignee:	Ryan O'Hara <rohara>
Status:	CLOSED WONTFIX	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	el5	CC:	bperkins, robinlee.sysu, rohara
Target Milestone:	---
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
URL:	http://www.openwall.com/lists/oss-security/2013/01/23/7
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:	903293	Environment:
Last Closed:	2014-11-06 11:58:27 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	903293, 903303, 903306, 903307
Bug Blocks:	903295

Description Jan Lieskovsky 2013-01-23 16:51:01 UTC

+++ This bug was initially created as a clone of Bug #903293 +++

Description of problem:
As noted in bug #894626 and in:
  [1] http://www.openwall.com/lists/oss-security/2013/01/23/7

haproxy previously failed to drop supplementary groups properly when trying to drop root privileges.

By itself this problem is not a security flaw, but still serious enough the upstream fix:
  [2] git.1wt.eu/web?p=haproxy.git;a=commitdiff;h=ab012dd3

to be backported into all of the affected versions.

Version-Release number of selected component (if applicable):
haproxy-1.3.26-1.el5

How reproducible:
Always

Steps to Reproduce:
1. See https://bugzilla.redhat.com/show_bug.cgi?id=894626#c0 for further reproducer details
  
Actual results:
Supplementary groups are not dropped properly after setuid / setgid calls.

Expected results:
(All) Supplementary groups should be dropped when dropping root privileges.

Comment 1 Ryan O'Hara 2014-11-06 11:58:27 UTC

This was never backported to haproxy 1.3, which is currently in EPEL 5. Given this is EPEL 5 and a very old version of haproxy, closing this as WONTFIX.