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CVE-2016-4658

Published: 25 September 2016

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.

Priority

Medium

Cvss 3 Severity Score

9.8

Score breakdown

Status

Package Release Status
libxml2
Launchpad, Ubuntu, Debian
precise
Released (2.7.8.dfsg-5.1ubuntu4.17)
trusty
Released (2.9.1+dfsg1-3ubuntu4.9)
xenial
Released (2.9.3+dfsg1-1ubuntu0.2)
yakkety
Released (2.9.4+dfsg1-2ubuntu0.1)
zesty Not vulnerable
(2.9.4+dfsg1-2.2)
upstream
Released (2.9.5)
Patches:
upstream: https://git.gnome.org/browse/libxml2/commit/?id=c1d1f7121194036608bf555f08d3062a36fd344b

Severity score breakdown

Parameter Value
Base score 9.8
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