CVE-2020-15945 Null dereference in n/a
A segmentation fault in Lua's debug module allows attackers to cause a denial of service via crafted scripts.
- 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-2020-15945?
CVE-2020-15945 is a medium-severity vulnerability in n/a, published on 24 Jul 2020. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Lua 5.4.0 (fixed in 5.4.1) has a segmentation fault in changedline in ldebug.c (e.g., when called by luaG_traceexec) because it incorrectly expects that an oldpc value is always updated upon a return of the flow of control to a function.
Which versions are affected by CVE-2020-15945?
1 open source package ship an affected version, including lua. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
lua Bitnami | From 5.3.1 | 5.4.0 |
Products include Lua Lua.
How do I fix CVE-2020-15945?
Upgrade lua to 5.4.0 or later.
Is CVE-2020-15945 being exploited?
There is no known exploitation of CVE-2020-15945 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as AZL-40818, AZL-6671, BIT-lua-2020-15945, DEBIAN-CVE-2020-15945, GHSA-4fp8-99qh-27p3, JLSEC-2026-554 and 1 more.