OSV-2021-1049 Container-overflow in jxl::InvSqueeze
A container overflow in the JPEG XL library allows attackers to cause a denial of service via crafted image files.
- 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-2021-1049?
OSV-2021-1049 is a memory corruption vulnerability in libjxl, published on 25 Jul 2021. 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=36485
Crash type: Container-overflow READ 8
Crash state:
jxl::InvSqueeze
jxl::Transform::Inverse
jxl::Image::undo_transforms
Which versions are affected by OSV-2021-1049?
1 open source package ship an affected version, including libjxl.
| Package | Affected | Fixed in |
|---|---|---|
libjxl OSS-Fuzz | All versions | None |
How do I fix OSV-2021-1049?
No fix has been published for OSV-2021-1049 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is OSV-2021-1049 being exploited?
There is no known exploitation of OSV-2021-1049 in the wild and no public exploit code.