CVE-2016-4658

Publication date 25 September 2016

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

9.8 · Critical

Score breakdown

xpointer.c in libxml2 before 2.9.5 (as used in Apple iOS before 10, OS X before 10.12, tvOS before 10, and watchOS before 3, and other products) does not forbid namespace nodes in XPointer ranges, which allows remote attackers to execute arbitrary code or cause a denial of service (use-after-free and memory corruption) via a crafted XML document.

Status

Package Ubuntu Release Status
libxml2 17.04 zesty
Not affected
16.10 yakkety
Fixed 2.9.4+dfsg1-2ubuntu0.1
16.04 LTS xenial
Fixed 2.9.3+dfsg1-1ubuntu0.2
14.04 LTS trusty
Fixed 2.9.1+dfsg1-3ubuntu4.9
12.04 LTS precise
Fixed 2.7.8.dfsg-5.1ubuntu4.17

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
libxml2

Severity score breakdown

Parameter Value
Base score 9.8 · Critical
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H