OSV-2021-456 Heap-buffer-overflow in grk::Quantizer::read_SQcd_SQcc
A heap-buffer-overflow in the OpenJPEG library allows attackers to cause denial of service or potentially execute code via malicious image files.
- 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
- None listed
What is OSV-2021-456?
OSV-2021-456 is a memory corruption vulnerability in grok, published on 28 Feb 2021. 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
OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=31460
Crash type: Heap-buffer-overflow READ 1
Crash state:
grk::Quantizer::read_SQcd_SQcc
grk::CodeStreamDecompress::read_qcd
grk::CodeStreamDecompress::process_marker
Which versions are affected by OSV-2021-456?
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-2021-456?
No fix has been published for OSV-2021-456 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-2021-456 being exploited?
There is no known exploitation of OSV-2021-456 in the wild and no public exploit code.