OSV-2020-1029 Heap-buffer-overflow in iotlb_to_region_mips
A heap-buffer-overflow in the QEMU MIPS emulator allows attackers to cause denial of service or potentially execute code via crafted inputs.
- 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-2020-1029?
OSV-2020-1029 is a memory corruption vulnerability in unicorn, published on 22 Jul 2020. 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=17193
Crash type: Heap-buffer-overflow READ 8
Crash state:
iotlb_to_region_mips
get_page_addr_code_mips
tb_find_slow_mips
Which versions are affected by OSV-2020-1029?
1 open source package ship an affected version, including unicorn.
| Package | Affected | Fixed in |
|---|---|---|
unicorn OSS-Fuzz | All versions | None |
How do I fix OSV-2020-1029?
No fix has been published for OSV-2020-1029 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-2020-1029 being exploited?
There is no known exploitation of OSV-2020-1029 in the wild and no public exploit code.