CVE-2019-6443 Memory corruption in n/a
A stack-based buffer over-read in NTPsec allows attackers to cause denial of service or disclose sensitive memory contents.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2019-6443?
CVE-2019-6443 is a critical memory corruption vulnerability in n/a, published on 16 Jan 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An issue was discovered in NTPsec before 1.1.3. Because of a bug in ctl_getitem, there is a stack-based buffer over-read in read_sysvars in ntp_control.c in ntpd.
Weakness: CWE-125
Which versions are affected by CVE-2019-6443?
It affects 1 product.
Products include Ntpsec Ntpsec.
How do I fix CVE-2019-6443?
Upgrade to a fixed version.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2019-6443 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2019-6443 exists.
Public exploit code: 1 Exploit-DB entry and 1 Nuclei template.
Other vulnerabilities in n/a
Sources
Also known as DEBIAN-CVE-2019-6443, GHSA-v24q-v22h-25r2, UBUNTU-CVE-2019-6443.