Bug 1554662 (CVE-2018-7725)

Summary:	CVE-2018-7725 zziplib: out of bound read in mmapped.c:zzip_disk_fread() causes crash
Product:	[Other] Security Response	Reporter:	Sam Fowler <sfowler>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	abokovoy, jamartis, rschiron
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	zziplib 0.13.69	Doc Type:	If docs needed, set a value
Doc Text:	An out of bounds read was found in function zzip_disk_fread of ZZIPlib, up to 0.13.68, when ZZIPlib mem_disk functionality is used. Remote attackers could leverage this vulnerability to cause a denial of service via a crafted zip file.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2019-06-10 10:17:36 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:	1554663, 1555082, 1558596
Bug Blocks:	1554666

Description Sam Fowler 2018-03-13 06:37:51 UTC

ZZIPlib through version 0.13.68 is vulnerable to an out of bound read in
mapped.c:zzip_disk_fread(). An attacker could exploit this via a crafted zip
file, opened with the ZZIPlib mem_disk functionality, causing a denial of
service or possibly leaking memory data.


Upstream Issue:
https://github.com/gdraheim/zziplib/issues/39

Upstream patches:
https://github.com/gdraheim/zziplib/commit/1ba660b3300d67b8ce9f6b96bbae0b36fa2d6b06

Comment 1 Sam Fowler 2018-03-13 06:38:13 UTC

Created zziplib tracking bugs for this issue:

Affects: fedora-all [bug 1554663]

Comment 3 Riccardo Schirone 2018-03-20 14:31:19 UTC

First vulnerable commit:
https://github.com/gdraheim/zziplib/commit/596d9dfce2624e849417d4301e8d67935608aa5e

Comment 6 errata-xmlrpc 2018-10-30 07:51:57 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2018:3229 https://access.redhat.com/errata/RHSA-2018:3229