OSV-2020-133 Heap-use-after-free in r_bin_object_rebuild_classes_ht
A heap-use-after-free vulnerability in the binary object rebuilding function allows attackers to cause denial of service or potentially execute code via crafted binary files.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Not stated
- Victim action needed
- Not needed
- Fix
- None listed
What is OSV-2020-133?
OSV-2020-133 is an use after free vulnerability in radare2, published on 24 Jun 2020.
Official description
OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=21602
Crash type: Heap-use-after-free READ 8
Crash state:
r_bin_object_rebuild_classes_ht
r_bin_object_set_items
r_bin_object_new
Which versions are affected by OSV-2020-133?
1 open source package ship an affected version, including radare2.
| Package | Affected | Fixed in |
|---|---|---|
radare2 OSS-Fuzz | All versions | None |
How do I fix OSV-2020-133?
No fix has been published for OSV-2020-133 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-2020-133 being exploited?
There is no known exploitation of OSV-2020-133 in the wild and no public exploit code.