CVE-2020-7454 Memory corruption in FreeBSD
An out-of-bounds read/write in FreeBSD's libalias allows attackers to cause memory corruption, potentially leading to code execution or system crashes.
- 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-2020-7454?
CVE-2020-7454 is a critical memory corruption vulnerability in Freebsd Freebsd, published on 13 May 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
In FreeBSD 12.1-STABLE before r360971, 12.1-RELEASE before p5, 11.4-STABLE before r360971, 11.4-BETA1 before p1 and 11.3-RELEASE before p9, libalias does not properly validate packet length resulting in modules causing an out of bounds read/write condition if no checking was built into the module.
Which versions are affected by CVE-2020-7454?
It affects 1 product.
Products include Freebsd Freebsd.
How do I fix CVE-2020-7454?
No fix has been published for CVE-2020-7454 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-2020-7454 being exploited?
There is no known exploitation of CVE-2020-7454 in the wild and no public exploit code.
Other vulnerabilities in Freebsd Freebsd
Sources
Also known as GHSA-5g86-qjm3-wfq4.