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CVE-2016-1837

Published: 20 May 2016

Multiple use-after-free vulnerabilities in the (1) htmlPArsePubidLiteral and (2) htmlParseSystemiteral functions in libxml2 before 2.9.4, as used in Apple iOS before 9.3.2, OS X before 10.11.5, tvOS before 9.2.1, and watchOS before 2.2.1, allow remote attackers to cause a denial of service via a crafted XML document.

Priority

Medium

Cvss 3 Severity Score

5.5

Score breakdown

Status

Package Release Status
libxml2
Launchpad, Ubuntu, Debian
precise
Released (2.7.8.dfsg-5.1ubuntu4.15)
trusty
Released (2.9.1+dfsg1-3ubuntu4.8)
upstream
Released (2.9.4)
wily
Released (2.9.2+zdfsg1-4ubuntu0.4)
xenial
Released (2.9.3+dfsg1-1ubuntu0.1)
yakkety Not vulnerable
(2.9.3+dfsg1-1.2)
zesty Not vulnerable
(2.9.3+dfsg1-1.2)
Patches:
upstream: https://git.gnome.org/browse/libxml2/commit/?id=11ed4a7a90d5ce156a18980a4ad4e53e77384852

Severity score breakdown

Parameter Value
Base score 5.5
Attack vector Local
Attack complexity Low
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H