CVE-2020-8443 Memory corruption in n/a
An off-by-one heap buffer overflow in OSSEC-HIDS allows attackers to execute arbitrary code or cause denial of service via crafted syslog messages.
- 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-2020-8443?
CVE-2020-8443 is a critical memory corruption vulnerability in n/a, published on 30 Jan 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
In OSSEC-HIDS 2.7 through 3.5.0, the server component responsible for log analysis (ossec-analysisd) is vulnerable to an off-by-one heap-based buffer overflow during the cleaning of crafted syslog msgs (received from authenticated remote agents and delivered to the analysisd processing queue by ossec-remoted).
Which versions are affected by CVE-2020-8443?
It affects 1 product.
Products include Ossec Ossec.
How do I fix CVE-2020-8443?
No fix has been published for CVE-2020-8443 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-2020-8443 being exploited?
There is no known exploitation of CVE-2020-8443 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-wpvm-52j3-27mh.