CVE-2019-6442 Memory corruption in n/a
An authenticated attacker can trigger an out-of-bounds write in NTPsec, potentially leading to code execution or privilege escalation.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2019-6442?
CVE-2019-6442 is a medium-severity memory corruption vulnerability in n/a, published on 16 Jan 2019. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
An issue was discovered in NTPsec before 1.1.3. An authenticated attacker can write one byte out of bounds in ntpd via a malformed config request, related to config_remotely in ntp_config.c, yyparse in ntp_parser.tab.c, and yyerror in ntp_parser.y.
Weakness: CWE-787
Which versions are affected by CVE-2019-6442?
It affects 1 product.
Products include Ntpsec Ntpsec.
How do I fix CVE-2019-6442?
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-2019-6442 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2019-6442 exists.
Public exploit code: 1 Exploit-DB entry.
Other vulnerabilities in n/a
Sources
Also known as DEBIAN-CVE-2019-6442, GHSA-x553-v9rp-pgh7, UBUNTU-CVE-2019-6442.