CVE-2020-15888 Use after free in n/a
Attackers can exploit heap corruption in Lua to execute arbitrary code or cause denial of service via stack resize and garbage collection interactions.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2020-15888?
CVE-2020-15888 is a high-severity use after free vulnerability in n/a, published on 21 Jul 2020. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Lua through 5.4.0 mishandles the interaction between stack resizes and garbage collection, leading to a heap-based buffer overflow, heap-based buffer over-read, or use-after-free.
Which versions are affected by CVE-2020-15888?
1 open source package ship an affected version, including lua. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
lua Bitnami | From 5.4.0 | 5.4.1 |
Products include Lua Lua.
How do I fix CVE-2020-15888?
Upgrade lua to 5.4.1 or later.
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-2020-15888 being exploited?
There is no known exploitation of CVE-2020-15888 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as AZL-6670, BIT-lua-2020-15888, DEBIAN-CVE-2020-15888, GHSA-4f5v-4r5w-g4x3.