CVE-2019-5718 Denial of service in n/a
A flaw in Wireshark's RTSE and ASN.1 dissectors allows attackers to crash the application via crafted packets, requiring an upgrade to fix.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2019-5718?
CVE-2019-5718 is a medium-severity denial of service vulnerability in Debian Debian Linux, published on 8 Jan 2019. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
In Wireshark 2.6.0 to 2.6.5 and 2.4.0 to 2.4.11, the RTSE dissector and other ASN.1 dissectors could crash. This was addressed in epan/charsets.c by adding a get_t61_string length check.
Weakness: CWE-125
Which versions are affected by CVE-2019-5718?
It affects 2 products.
Products include Debian Debian Linux, Wireshark Wireshark.
How do I fix CVE-2019-5718?
Upgrade to a fixed version.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2019-5718 being exploited?
There is no known exploitation of CVE-2019-5718 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as DEBIAN-CVE-2019-5718, GHSA-vmh9-7r5j-qv6q, UBUNTU-CVE-2019-5718.