CVE-2023-36377 Memory corruption in n/a
A local attacker can execute arbitrary code by providing crafted executable files to the osslsigncode tool.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2023-36377?
CVE-2023-36377 is a high-severity memory corruption vulnerability in n/a, published on 3 Jul 2023. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Buffer Overflow vulnerability in mtrojnar osslsigncode v.2.3 and before allows a local attacker to execute arbitrary code via a crafted .exe, .sys, and .dll files.
Weakness: CWE-120
Which versions are affected by CVE-2023-36377?
It affects 1 product.
Products include Osslsigncode Project Osslsigncode.
How do I fix CVE-2023-36377?
Upgrade to a fixed version.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2023-36377 being exploited?
There is no known exploitation of CVE-2023-36377 in the wild and no public exploit code.
Other vulnerabilities in n/a
- CVE-2025-70888 Privilege escalation in n/a
- CVE-2026-39853 osslsigncode has a Stack Buffer Overflow via Unbounded Digest Copy During Signature Verification
- CVE-2026-39855 osslsigncode has an Integer Underflow in PE Page Hash Calculation Can Cause Out-of-Bounds Read
- CVE-2026-39856 osslsigncode has an Out-of-Bounds Read via Unvalidated Section Bounds in PE Page Hash Calculation
Sources
Also known as DEBIAN-CVE-2023-36377, DLA-3693-1, DLA-4426-1, GHSA-hgrq-rjwf-5f46, UBUNTU-CVE-2023-36377.