Bug 628686 (CVE-2017-6420)

Summary:	<app-antivirus/clamav-0.99.4: use-after-free in wwunpack function (CVE-2017-6420)
Product:	Gentoo Security	Reporter:	Agostino Sarubbo <ago>
Component:	Vulnerabilities	Assignee:	Gentoo Security <security>
Status:	RESOLVED FIXED
Severity:	minor	CC:	antivirus, net-mail+disabled
Priority:	Normal
Version:	unspecified
Hardware:	All
OS:	Linux
URL:	https://bugzilla.redhat.com/show_bug.cgi?id=1483910
Whiteboard:	B3 [glsa+ cve]
Package list:		Runtime testing required:	---
Bug Depends on:	649314
Bug Blocks:

Description Agostino Sarubbo gentoo-dev

2017-08-23 08:02:03 UTC

From ${URL} :

The wwunpack function in libclamav/wwunpack.c in ClamAV 0.99.2 allows
remote attackers to cause a denial of service (use-after-free) via a
crafted PE file with WWPack compression.

Upstream patch:

https://github.com/vrtadmin/clamav-devel/commit/dfc00cd3301a42b571454b51a6102eecf58407bc


@maintainer(s): after the bump, in case we need to stabilize the package, please let us know if it is ready for the stabilization or not.

Comment 1 Thomas Deutschmann (RETIRED) gentoo-dev

2018-03-02 19:02:41 UTC

The fix (https://github.com/Cisco-Talos/clamav-devel/commit/4fe1d1852600113d7a97f8b50908bad05c5aae91#diff-f3c3a9e99ea39b9116c12365b5826cf0) is in clamav-0.99.4 (code was changed later via https://github.com/Cisco-Talos/clamav-devel/commit/e0904c51f5480e213c150fd1d24d6c27c0f64ede#diff-f3c3a9e99ea39b9116c12365b5826cf0).

Comment 2 GLSAMaker/CVETool Bot gentoo-dev

2018-04-22 22:34:23 UTC

This issue was resolved and addressed in
 GLSA 201804-16 at https://security.gentoo.org/glsa/201804-16
by GLSA coordinator Aaron Bauman (b-man).