Bug 611354 (CVE-2017-2626)

Summary:	<x11-libs/libICE-1.0.9-r1: weak entropy usage in session keys
Product:	Gentoo Security	Reporter:	Thomas Deutschmann (RETIRED) <whissi>
Component:	Vulnerabilities	Assignee:	Gentoo Security <security>
Status:	RESOLVED FIXED
Severity:	critical	CC:	x11
Priority:	Normal
Version:	unspecified
Hardware:	All
OS:	Linux
URL:	https://www.x41-dsec.de/lab/advisories/x41-2017-001-xorg/
See Also:	https://bugs.gentoo.org/show_bug.cgi?id=611352
Whiteboard:	A1 [glsa cve]
Package list:		Runtime testing required:	---
Bug Depends on:	611056
Bug Blocks:

Description Thomas Deutschmann (RETIRED) gentoo-dev

2017-03-02 00:13:22 UTC

libICE depends on arc4random() as well to generate the session cookies, thereby falling back to the same weak mechanism as libXdmcp (bug 611352).

Comment 1 Thomas Deutschmann (RETIRED) gentoo-dev

2017-03-02 00:14:54 UTC

We will have to check, most Gentoo architectures shouldn't be affected due to

> elibc_glibc? ( dev-libs/libbsd )

Comment 2 Matt Turner gentoo-dev

2017-03-02 03:26:34 UTC

libICE-1.0.9-r1 depends on libbsd, but it is not stabilized yet. We will need to do that.

Comment 3 Matt Turner gentoo-dev

2017-03-04 16:13:24 UTC

Stabilization will be handled in bug 611056.

Comment 4 Matt Turner gentoo-dev

2017-03-16 16:13:47 UTC

Vulnerable versions dropped:

commit 8bd3d32950f98d616d97c0df66a841eb5c6f7f0c
Author: Matt Turner <mattst88@gentoo.org>
Date:   Thu Mar 16 09:11:52 2017 -0700

    x11-libs/libICE: Drop vulnerable versions.
    
    Bug: https://bugs.gentoo.org/611354

Comment 5 Thomas Deutschmann (RETIRED) gentoo-dev

2017-03-18 13:14:44 UTC

New GLSA request filed.

Comment 6 GLSAMaker/CVETool Bot gentoo-dev

2017-04-10 21:36:17 UTC

This issue was resolved and addressed in
 GLSA 201704-03 at https://security.gentoo.org/glsa/201704-03
by GLSA coordinator Kristian Fiskerstrand (K_F).