OSV-2020-1448 Global-buffer-overflow in vte_write_debug
A global buffer overflow in the VTE library's debug write function can cause a crash when processing specific escape sequences.
- 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-2020-1448?
OSV-2020-1448 is a memory corruption vulnerability in libtsm, published on 28 Jul 2020. 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=22203
Crash type: Global-buffer-overflow READ 1
Crash state:
vte_write_debug
send_primary_da
do_esc
Which versions are affected by OSV-2020-1448?
1 open source package ship an affected version, including libtsm.
| Package | Affected | Fixed in |
|---|---|---|
libtsm OSS-Fuzz | All versions | None |
How do I fix OSV-2020-1448?
No fix has been published for OSV-2020-1448 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-2020-1448 being exploited?
There is no known exploitation of OSV-2020-1448 in the wild and no public exploit code.