OSV-2021-1489 UNKNOWN READ in __bpf_object__open
An unknown read vulnerability in the BPF library can cause a crash, potentially leading to denial of service for applications using it.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is OSV-2021-1489?
OSV-2021-1489 is a memory corruption vulnerability in libbpf, published on 26 Oct 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=40317
Crash type: UNKNOWN READ
Crash state:
__bpf_object__open
bpf_object__open_mem
bpf-object-fuzzer.c
Which versions are affected by OSV-2021-1489?
1 open source package ship an affected version, including libbpf.
| Package | Affected | Fixed in |
|---|---|---|
libbpf OSS-Fuzz | All versions | None |
How do I fix OSV-2021-1489?
No fix has been published for OSV-2021-1489 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-2021-1489 being exploited?
There is no known exploitation of OSV-2021-1489 in the wild and no public exploit code.