CVE-2018-19278 Memory corruption in n/a
Remote attackers can crash Asterisk by sending specially crafted DNS SRV or NAPTR responses due to a buffer overflow in lookup processing.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2018-19278?
CVE-2018-19278 is a high-severity memory corruption vulnerability in Digium Asterisk, published on 14 Nov 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Buffer overflow in DNS SRV and NAPTR lookups in Digium Asterisk 15.x before 15.6.2 and 16.x before 16.0.1 allows remote attackers to crash Asterisk via a specially crafted DNS SRV or NAPTR response, because a buffer size is supposed to match an expanded length but actually matches a compressed length.
Weakness: CWE-119
Which versions are affected by CVE-2018-19278?
It affects 1 product.
Products include Digium Asterisk.
How do I fix CVE-2018-19278?
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-2018-19278 being exploited?
There is no known exploitation of CVE-2018-19278 in the wild and no public exploit code.
Other vulnerabilities in Digium Asterisk
Sources
Also known as ALPINE-CVE-2018-19278, GHSA-47fm-v3pv-gm8p.