CVE-2022-27881 Memory corruption in n/a
Buffer overflow in OpenBSD slaacd allows attackers to execute code or escalate privileges via crafted IPv6 router advertisements.
- 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-2022-27881?
CVE-2022-27881 is a high-severity memory corruption vulnerability in Openbsd Openbsd, published on 25 Mar 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
engine.c in slaacd in OpenBSD 6.9 and 7.0 before 2022-02-21 has a buffer overflow triggerable by an IPv6 router advertisement with more than seven nameservers. NOTE: privilege separation and pledge can prevent exploitation.
Weakness: CWE-120
Which versions are affected by CVE-2022-27881?
It affects 1 product.
Products include Openbsd Openbsd.
How do I fix CVE-2022-27881?
No fix has been published for CVE-2022-27881 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-2022-27881 being exploited?
There is no known exploitation of CVE-2022-27881 in the wild and no public exploit code.
Other vulnerabilities in Openbsd Openbsd
Sources
Also known as GHSA-c8w2-c5ch-hg9w.