CVE-2022-27255 Memory corruption in n/a
Remote attackers can execute arbitrary code via crafted SIP packets due to a stack-based buffer overflow in the SIP ALG function.
- 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-2022-27255?
CVE-2022-27255 is a critical memory corruption vulnerability in n/a, published on 1 Aug 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
In Realtek eCos RSDK 1.5.7p1 and MSDK 4.9.4p1, the SIP ALG function that rewrites SDP data has a stack-based buffer overflow. This allows an attacker to remotely execute code without authentication via a crafted SIP packet that contains malicious SDP data.
Weakness: CWE-20
Which versions are affected by CVE-2022-27255?
It affects 2 products.
Products include Realtek Ecos Msdk Firmware, Realtek Ecos Rsdk Firmware.
How do I fix CVE-2022-27255?
No fix has been published for CVE-2022-27255 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-2022-27255 being exploited?
There is no known exploitation of CVE-2022-27255 in the wild and no public exploit code.
Public exploit code: 2 proofs of concept on GitHub.
Sources
Also known as GHSA-hcc6-7m2q-wj56.