OSV-2022-1276 Stack-buffer-overflow in ntlm_phase_3
A stack buffer overflow in the NTLM phase 3 function allows attackers to cause crashes or potentially execute code via crafted proxy authentication data.
- Exploited in the wild
- Not known
- Login needed
- Not stated
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is OSV-2022-1276?
OSV-2022-1276 is a memory corruption vulnerability in openvpn, published on 15 Jun 2023. It can be exploited over the network, with no action from the victim.
Official description
OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=59818
Crash type: Stack-buffer-overflow WRITE 1
Crash state:
ntlm_phase_3
establish_http_proxy_passthru
fuzz_proxy.c
Which versions are affected by OSV-2022-1276?
1 open source package ship an affected version, including openvpn.
| Package | Affected | Fixed in |
|---|---|---|
openvpn OSS-Fuzz | All versions | None |
How do I fix OSV-2022-1276?
No fix has been published for OSV-2022-1276 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-2022-1276 being exploited?
There is no known exploitation of OSV-2022-1276 in the wild and no public exploit code.