CVE-2015-8719 Denial of service in n/a
Remote attackers can crash Wireshark by sending a crafted DNS packet with a malformed EDNS0 Client Subnet option.
- 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-2015-8719?
CVE-2015-8719 is a medium-severity denial of service vulnerability in Wireshark Wireshark, published on 4 Jan 2016. 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
The dissect_dns_answer function in epan/dissectors/packet-dns.c in the DNS dissector in Wireshark 1.12.x before 1.12.9 mishandles the EDNS0 Client Subnet option, which allows remote attackers to cause a denial of service (application crash) via a crafted packet.
Weakness: CWE-20
Which versions are affected by CVE-2015-8719?
It affects 1 product.
Products include Wireshark Wireshark.
How do I fix CVE-2015-8719?
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-2015-8719 being exploited?
There is no known exploitation of CVE-2015-8719 in the wild and no public exploit code.
Other vulnerabilities in Wireshark Wireshark
Sources
Also known as DEBIAN-CVE-2015-8719, GHSA-rcqg-9gpm-3c39, UBUNTU-CVE-2015-8719.