CVE-2023-33476 Memory corruption in n/a
A buffer overflow in ReadyMedia allows attackers to execute arbitrary code or cause denial of service via crafted HTTP chunked requests.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2023-33476?
CVE-2023-33476 is a critical memory corruption vulnerability in n/a, published on 2 Jun 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
ReadyMedia (MiniDLNA) versions from 1.1.15 up to 1.3.2 is vulnerable to Buffer Overflow. The vulnerability is caused by incorrect validation logic when handling HTTP requests using chunked transport encoding. This results in other code later using attacker-controlled chunk values that exceed the length of the allocated buffer, resulting in out-of-bounds read/write.
Weakness: CWE-787
Which versions are affected by CVE-2023-33476?
It affects 1 product.
Linux distribution packages (3)
minidlna SUSE:Package Hub 15 SP5 | All versions | 1.3.3-bp155.2.3.1 |
minidlna openSUSE:Leap 15.5 | All versions | 1.3.3-bp155.2.3.1 |
minidlna openSUSE:Tumbleweed | All versions | 1.3.3-2.1 |
Products include Readymedia Project Readymedia.
How do I fix CVE-2023-33476?
Apply the vendor's patch.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2023-33476 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-33476 exists.
Public exploit code: 1 proofs of concept on GitHub.
Other vulnerabilities in n/a
Sources
Also known as DEBIAN-CVE-2023-33476, DLA-3465-1, DSA-5434-1, GHSA-xch8-fp3g-32mq, MGASA-2023-0224, UBUNTU-CVE-2023-33476 and 2 more.