OSV-2020-1885 Heap-use-after-free in xmlStaticCopyNode
A heap-use-after-free vulnerability in the XML parsing library allows attackers to cause denial of service or potentially execute code via crafted XML input.
- 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-2020-1885?
OSV-2020-1885 is an use after free vulnerability in libxml2, published on 29 Sep 2020. 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=26022
Crash type: Heap-use-after-free READ 4
Crash state:
xmlStaticCopyNode
xmlCopyNode
xmlXIncludeLoadTxt
Which versions are affected by OSV-2020-1885?
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-2020-1885?
No fix has been published for OSV-2020-1885 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-2020-1885 being exploited?
There is no known exploitation of OSV-2020-1885 in the wild and no public exploit code.