CVE-2022-23462 Stack Buffer Overflow in iowow
A stack buffer overflow in the iowow library allows attackers to cause a denial of service by parsing malicious JSON scientific notation.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2022-23462?
CVE-2022-23462 is a medium-severity memory corruption vulnerability in Softmotions iowow, published on 21 Oct 2022. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
IOWOW is a C utility library and persistent key/value storage engine. Versions 1.4.15 and prior contain a stack buffer overflow vulnerability that allows for Denial of Service (DOS) when it parses scientific notation numbers present in JSON. A patch for this issue is available at commit a79d31e4cff1d5a08f665574b29fd885897a28fd in the `master` branch of the repository. There are no workarounds other than applying the patch.
Which versions are affected by CVE-2022-23462?
It affects 1 product.
Products include Softmotions Iowow.
How do I fix CVE-2022-23462?
No fix has been published for CVE-2022-23462 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 CVE-2022-23462 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-23462 exists.
Sources
Also known as GHSA-6gqv-x5rh-36m4.