CVE-2023-31247 Memory corruption in Cesium NET
A memory corruption flaw in the HTTP Host header parsing allows remote attackers to execute arbitrary code via a malicious packet.
- 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-2023-31247?
CVE-2023-31247 is a critical memory corruption vulnerability in Silicon Labs Cesium NET, published on 14 Nov 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A memory corruption vulnerability exists in the HTTP Server Host header parsing functionality of Weston Embedded uC-HTTP v3.01.01. A specially crafted network packet can lead to code execution. An attacker can send a malicious packet to trigger this vulnerability.
Which versions are affected by CVE-2023-31247?
It affects 3 products.
Products include Silabs Gecko Software Development Kit, Weston-Embedded Cesium Net, Weston-Embedded Uc-Http.
How do I fix CVE-2023-31247?
No fix has been published for CVE-2023-31247 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-2023-31247 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-31247 exists.
Other vulnerabilities in Silicon Labs Cesium NET
- CVE-2023-45318 Memory corruption in Gecko Platform
- CVE-2023-2686 Memory corruption in Gecko Platform
- CVE-2023-4280 Unvalidated input in Silicon Labs TrustZone implementation leads to accessing Trusted memory region
- CVE-2023-4020 Unvalidated input in Silicon Labs PSA Attestation service leads to secure memory access from non-secure memory
- CVE-2023-25181 Memory corruption in Cesium NET
Sources
Also known as GHSA-78q9-mf5f-jj96.