Bug 728536

Summary:	CVE-2006-1168 busybox: uncompress buffer underflow
Product:	[Fedora] Fedora	Reporter:	Tomas Hoger <thoger>
Component:	busybox	Assignee:	Denys Vlasenko <dvlasenk>
Status:	CLOSED CURRENTRELEASE	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	rawhide	CC:	dvlasenk, maxamillion
Target Milestone:	---	Keywords:	Security, SecurityTracking
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	Release Note
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2011-11-03 15:54:18 UTC	Type:	---
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:
Bug Blocks:	201919

Description Tomas Hoger 2011-08-05 12:55:17 UTC

Description of problem:
busybox embeds (n)compress code in its libunarchive/libarchive.  This embedded copy has not been patched for the following bug:

https://bugs.gentoo.org/show_bug.cgi?id=141728
http://ncompress.git.sourceforge.net/git/gitweb.cgi?p=ncompress/ncompress;a=commitdiff;h=e21aad4a5a3ba0b6c2279b28a80f85b0b226a175

Steps to Reproduce:
$ perl -e 'print "\x1f\x9d\x90","\x01"x"2048"' | busybox uncompress
Segmentation fault

Comment 1 Tomas Hoger 2011-08-05 13:03:44 UTC

bss or heap, depending on the version, it seems.

Comment 2 Denys Vlasenko 2011-08-18 12:32:58 UTC

Fixed in upstream git:

commit 251fc70e9722f931eec23a34030d05ba5f747b0e
Author: Denys Vlasenko <vda.linux>
Date:   Thu Aug 18 14:29:41 2011 +0200

    uncompress: fix buffer underrun by corrupted input


Fix for the latest release:

http://busybox.net/downloads/fixes-1.19.0/busybox-1.19.0-uncompress.patch

Comment 3 Denys Vlasenko 2011-11-03 15:54:18 UTC

F17 is rebased to busybox-1.19.3, which contains this fix