Bug 1554662 – CVE-2018-7725 zziplib: out of bound read in mmapped.c:zzip_disk_fread() causes crash

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Bug 1554662 - (CVE-2018-7725) CVE-2018-7725 zziplib: out of bound read in mmapped.c:zzip_disk_fread() causes crash

Summary:	CVE-2018-7725 zziplib: out of bound read in mmapped.c:zzip_disk_fread() cause...

Status:	NEW

Aliases:	CVE-2018-7725

Product:	Security Response
Classification:	Other
Component:	vulnerability (Show other bugs)
Sub Component:
Version:	unspecified
Hardware:	All Linux

Priority	low Severity low
Target Milestone:	---
Target Release:	---
Assigned To:	Red Hat Product Security
QA Contact:
Docs Contact:

URL:
Whiteboard:	impact=low,public=20180207,reported=2...
Keywords:	Security

Depends On:	1555082 1554663 1558596
Blocks:	1554666
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Reported:	2018-03-13 02:37 EDT by Sam Fowler
Modified:	2018-10-30 03:52 EDT (History)
CC List:	3 users (show)

See Also:
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.
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Last Closed:
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Regression:	---
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oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
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External Trackers
Tracker	ID	Priority	Status	Summary	Last Updated
Red Hat Product Errata	RHSA-2018:3229	None	None	None	2018-10-30 03:52 EDT

Groups: None (edit)

Description Sam Fowler 2018-03-13 02:37:51 EDT

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 02:38:13 EDT

Created zziplib tracking bugs for this issue:

Affects: fedora-all [bug 1554663]

Comment 3 Riccardo Schirone 2018-03-20 10:31:19 EDT

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

Comment 6 errata-xmlrpc 2018-10-30 03:51:57 EDT

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

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