CVE-2015-8733 Denial of service in n/a
Remote attackers can crash Wireshark via a crafted file due to improper validation of record lengths in the Sniffer parser.
- 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-2015-8733?
CVE-2015-8733 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 ngsniffer_process_record function in wiretap/ngsniffer.c in the Sniffer file parser in Wireshark 1.12.x before 1.12.9 and 2.0.x before 2.0.1 does not validate the relationships between record lengths and record header lengths, which allows remote attackers to cause a denial of service (out-of-bounds read and application crash) via a crafted file.
Weakness: CWE-20
Which versions are affected by CVE-2015-8733?
It affects 1 product.
Products include Wireshark Wireshark.
How do I fix CVE-2015-8733?
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-2015-8733 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2015-8733 exists.
Public exploit code: 1 Exploit-DB entry.
Other vulnerabilities in Wireshark Wireshark
Sources
Also known as DEBIAN-CVE-2015-8733, GHSA-9p72-89p6-6vxm, UBUNTU-CVE-2015-8733.