CVE-2011-2821 Use after free in n/a
Remote attackers can cause denial of service or potentially execute code via crafted XPath expressions in libxml2 used by Chrome.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2011-2821?
CVE-2011-2821 is a high-severity use after free vulnerability in Apple Iphone Os, published on 29 Aug 2011. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Double free vulnerability in libxml2, as used in Google Chrome before 13.0.782.215, allows remote attackers to cause a denial of service or possibly have unspecified other impact via a crafted XPath expression.
Weakness: CWE-415
Which versions are affected by CVE-2011-2821?
It affects 8 products.
Products include Apple Iphone Os, Apple Mac Os X, Debian Debian Linux, Google Chrome, Redhat Enterprise Linux Desktop, Redhat Enterprise Linux Eus and 2 more.
How do I fix CVE-2011-2821?
Upgrade to a fixed version.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2011-2821 being exploited?
There is no known exploitation of CVE-2011-2821 in the wild and no public exploit code.
Other vulnerabilities in Apple Iphone Os
Sources
Also known as DEBIAN-CVE-2011-2821, GHSA-mx3h-88ww-4mqq.