CVE-2016-4658
libxml2 - security update
9.8
CRITICAL
CVSS 3.1
EPSS 15.4%
Description
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.
How to fix CVE-2016-4658
To remediate CVE-2016-4658, upgrade the affected package to a fixed version below.
- —upgrade to 2.9.4+dfsg1-2.1 or later
- —upgrade to 2.8.0+dfsg1-7+wheezy7 or later
- —upgrade to 2.9.1+dfsg1-5+deb8u4 or later
- —upgrade to 1.7.1 or later
Is CVE-2016-4658 being exploited?
Moderate — EPSS is 15.4%. Track this CVE but it's not at the top of the prioritisation list.
Affected packages (4)
- from 0, < 2.9.4+dfsg1-2.1
- from 0, < 2.8.0+dfsg1-7+wheezy7
- from 0, < 2.9.1+dfsg1-5+deb8u4
- from 0, < 1.7.1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |