CVE-2016-1838 Denial of service in n/a
Remote attackers can cause a denial of service via heap-based buffer over-read in libxml2 using crafted XML documents.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2016-1838?
CVE-2016-1838 is a medium-severity denial of service vulnerability in Apple Iphone Os, published on 20 May 2016. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
The xmlPArserPrintFileContextInternal function 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, allows remote attackers to cause a denial of service (heap-based buffer over-read) via a crafted XML document.
Weakness: CWE-125
Which versions are affected by CVE-2016-1838?
It affects 14 products.
Products include Apple Iphone Os, Apple Mac Os X, Apple Tvos, Apple Watchos, Canonical Ubuntu Linux, Debian Debian Linux and 8 more.
How do I fix CVE-2016-1838?
Upgrade to a fixed version.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2016-1838 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2016-1838 exists.
Public exploit code: 1 Exploit-DB entry.
Other vulnerabilities in Apple Iphone Os
Sources
Also known as DEBIAN-CVE-2016-1838, ECHO-dc02-72a4-0d78, GHSA-ppp9-jxhf-2xj3, UBUNTU-CVE-2016-1838.