OSV-2021-1797 Heap-buffer-overflow in grk::GrkImage::cieLabToRGB
A heap-buffer-overflow in the JPEG2000 image library allows attackers to execute arbitrary code or cause denial of service via crafted images.
- 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-2021-1797?
OSV-2021-1797 is a memory corruption vulnerability in grok, published on 2 Jan 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=43161
Crash type: Heap-buffer-overflow WRITE 4
Crash state:
grk::GrkImage::cieLabToRGB
grk::GrkImage::applyColourManagement
grk::CodeStreamDecompress::postProcess
Which versions are affected by OSV-2021-1797?
1 open source package ship an affected version, including grok.
| Package | Affected | Fixed in |
|---|---|---|
grok OSS-Fuzz | All versions | None |
How do I fix OSV-2021-1797?
No fix has been published for OSV-2021-1797 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-2021-1797 being exploited?
There is no known exploitation of OSV-2021-1797 in the wild and no public exploit code.