OSV-2017-13 Heap-buffer-overflow in File::Write
A heap-buffer overflow in the file writing component allows attackers to cause crashes or potentially execute code via malicious archives.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is OSV-2017-13?
OSV-2017-13 is a memory corruption vulnerability in unrar, published on 13 Jan 2021. It can only be exploited from the same machine or local network, 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=4293
Crash type: Heap-buffer-overflow READ {*}
Crash state:
File::Write
ComprDataIO::UnpWrite
CmdExtract::UnstoreFile
Which versions are affected by OSV-2017-13?
1 open source package ship an affected version, including unrar.
| Package | Affected | Fixed in |
|---|---|---|
unrar OSS-Fuzz | All versions | None |
How do I fix OSV-2017-13?
No fix has been published for OSV-2017-13 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-2017-13 being exploited?
There is no known exploitation of OSV-2017-13 in the wild and no public exploit code.