OSV-2020-2242 Heap-buffer-overflow in tinfl_decompress
A heap-buffer-overflow in the tinfl_decompress function of the miniz library can lead to crashes or potential code execution when processing malicious compressed data.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Not stated
- Victim action needed
- Not needed
- Fix
- None listed
What is OSV-2020-2242?
OSV-2020-2242 is a memory corruption vulnerability in fluent-bit, published on 5 Dec 2020.
Official description
OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=28285
Crash type: Heap-buffer-overflow READ 1
Crash state:
tinfl_decompress
mz_inflate
flb_gzip_uncompress
Which versions are affected by OSV-2020-2242?
1 open source package ship an affected version, including fluent-bit.
| Package | Affected | Fixed in |
|---|---|---|
fluent-bit OSS-Fuzz | All versions | None |
How do I fix OSV-2020-2242?
No fix has been published for OSV-2020-2242 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-2020-2242 being exploited?
There is no known exploitation of OSV-2020-2242 in the wild and no public exploit code.