CVE-2023-31974 Use after free in n/a
A use-after-free flaw in the YASM assembler's preprocessor could allow attackers to execute arbitrary code or cause a denial of service.
- 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 CVE-2023-31974?
CVE-2023-31974 is a medium-severity use after free vulnerability in n/a, published on 9 May 2023. 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
yasm v1.3.0 was discovered to contain a use after free via the function error at /nasm/nasm-pp.c. Note: Multiple third parties dispute this as a bug and not a vulnerability according to the YASM security policy.
Weakness: CWE-416
Which versions are affected by CVE-2023-31974?
It affects 1 product.
Products include Tortall Yasm.
How do I fix CVE-2023-31974?
No fix has been published for CVE-2023-31974 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2023-31974 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-31974 exists.
Other vulnerabilities in n/a
Sources
Also known as AZL-26635, AZL-35382, DEBIAN-CVE-2023-31974, GHSA-57f5-g442-hrw2.