Bug 42892

Summary:	libxml2: Multiple issues (4.1)
Product:	UCS	Reporter:	Arvid Requate <requate>
Component:	Security updates	Assignee:	Arvid Requate <requate>
Status:	CLOSED FIXED	QA Contact:	Daniel Tröder <troeder>
Severity:	normal
Priority:	P3	CC:	gohmann
Version:	UCS 4.1	Flags:	requate: Patch_Available+
Target Milestone:	UCS 4.1-4-errata
Hardware:	Other
OS:	Linux
What kind of report is it?:	Security Issue	What type of bug is this?:	---
Who will be affected by this bug?:	---	How will those affected feel about the bug?:	---
User Pain:		Enterprise Customer affected?:
School Customer affected?:		ISV affected?:
Waiting Support:		Flags outvoted (downgraded) after PO Review:
Ticket number:		Bug group (optional):	Security
Max CVSS v3 score:
Bug Depends on:
Bug Blocks:	41674

Description Arvid Requate

2016-11-08 19:17:39 CET

Upstream Debian package version 2.8.0+dfsg1-7+wheezy7 fixes this issue:

* libxml2 in Apple iOS before 10, OS X before 10.12, tvOS before 10, and watchOS before 3 allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted XML document. (CVE-2016-4658)

Comment 1 Arvid Requate

2016-11-08 19:21:41 CET

Also:

* legacy xmlXPtrRangeToFunction could be abused to trigger use-after-free error with the potential for remote code execution (CVE-2016-5131)

Comment 2 Arvid Requate

2016-11-10 21:20:59 CET

Advisory: libxml2.yaml

Comment 3 Daniel Tröder

2016-11-25 09:43:11 CET

OK: DEBIAN_FRONTEND=noninteractive apt-get install --reinstall libxml2-utils
OK: functional test:
# wget -q --no-check-certificate https://www.univention.de -O - | xmllint --html --valid --noout -
OK: advisory

Comment 4 Janek Walkenhorst

2016-12-01 11:57:29 CET

<http://errata.software-univention.de/ucs/4.1/340.html>