Bug 1663890 (CVE-2018-1000879)

Summary:	CVE-2018-1000879 libarchive: NULL pointer dereference in ACL parser resulting in a denial of service
Product:	[Other] Security Response	Reporter:	Andrej Nemec <anemec>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	databases-maint, pkubat, praiskup
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:	A vulnerability was found in libarchive, where a NULL pointer dereference in the archive_acl_from_text_l function in libarchive/archive_acl.c can lead to a denial of service, a remote attacker could exploit this flaw by persuading a victim to open a specially crafted file, causing the application to crash.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2021-10-25 22:22:27 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:	1663893, 1663894, 1663895, 1700750
Bug Blocks:	1663897

Description Andrej Nemec 2019-01-07 09:37:00 UTC

A NULL pointer dereference was found in libarchive in ACL parser. A crafted archive could cause the application to crash.

Upstream issue:

https://github.com/libarchive/libarchive/pull/1105

Upstream patch:

https://github.com/libarchive/libarchive/pull/1105/commits/021efa522ad729ff0f5806c4ce53e4a6cc1daa31

Comment 1 Andrej Nemec 2019-01-07 09:39:14 UTC

Created libarchive tracking bugs for this issue:

Affects: fedora-all [bug 1663893]


Created libarchive3 tracking bugs for this issue:

Affects: epel-6 [bug 1663895]


Created mingw-libarchive tracking bugs for this issue:

Affects: fedora-all [bug 1663894]

Comment 4 Stefan Cornelius 2019-04-17 14:17:22 UTC

Statement:

This issue did not affect the versions of libarchive as shipped with Red Hat Enterprise Linux 6 and 7.