OSV-2021-1373 Global-buffer-overflow in vte_write_debug
A global buffer overflow in the VTE library's debug write function allows attackers to cause crashes or potentially execute code via crafted terminal input.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is OSV-2021-1373?
OSV-2021-1373 is a memory corruption vulnerability in libtsm, published on 27 Sep 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=39313
Crash type: Global-buffer-overflow READ 1
Crash state:
vte_write_debug
csi_dev_attr
do_action
Which versions are affected by OSV-2021-1373?
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-2021-1373?
No fix has been published for OSV-2021-1373 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-2021-1373 being exploited?
There is no known exploitation of OSV-2021-1373 in the wild and no public exploit code.