OSV-2022-1071 Heap-use-after-free in xmlXIncludeCopyXPointer
A heap-use-after-free vulnerability in libxml2's XInclude processing allows attackers to cause denial of service or potentially execute arbitrary code.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is OSV-2022-1071?
OSV-2022-1071 is an use after free vulnerability in libxml2, published on 21 Oct 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=52554
Crash type: Heap-use-after-free READ 4
Crash state:
xmlXIncludeCopyXPointer
xmlXIncludeDoProcess
xmlXIncludeProcessTreeFlagsData
Which versions are affected by OSV-2022-1071?
1 open source package ship an affected version, including libxml2.
| Package | Affected | Fixed in |
|---|---|---|
libxml2 OSS-Fuzz | All versions | None |
How do I fix OSV-2022-1071?
No fix has been published for OSV-2022-1071 yet. Limit exposure of the affected software until one is available.
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 OSV-2022-1071 being exploited?
There is no known exploitation of OSV-2022-1071 in the wild and no public exploit code.