CVE-2023-3959 Zavio IP Camera Stack-Based Buffer Overflow
Remote attackers can execute arbitrary code on Zavio IP cameras via stack-based buffer overflows in XML processing.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2023-3959?
CVE-2023-3959 is a critical memory corruption vulnerability in Zavio IP Camera B8220, published on 8 Nov 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Zavio CF7500, CF7300, CF7201, CF7501, CB3211, CB3212, CB5220, CB6231, B8520, B8220, and CD321
IP Cameras
with firmware version M2.1.6.05 are vulnerable to multiple instances of stack-based overflows. While processing XML elements from incoming network requests, the product does not sufficiently check or validate allocated buffer size. This may lead to remote code execution.
Which versions are affected by CVE-2023-3959?
It affects 11 products.
Products include Zavio B8220 Firmware, Zavio B8520 Firmware, Zavio Cb3211 Firmware, Zavio Cb3212 Firmware, Zavio Cb5220 Firmware, Zavio Cb6231 Firmware and 5 more.
How do I fix CVE-2023-3959?
No fix has been published for CVE-2023-3959 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-2023-3959 being exploited?
There is no known exploitation of CVE-2023-3959 in the wild and no public exploit code.
Other vulnerabilities in Zavio IP Camera B8220
Sources
Also known as GHSA-xw58-crph-crhm.