CVE-2016-2522 Denial of service in n/a
Remote attackers can crash Wireshark via crafted packets due to an out-of-bounds read in the ASN.1 BER dissector.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2016-2522?
CVE-2016-2522 is a medium-severity denial of service vulnerability in Wireshark Wireshark, published on 28 Feb 2016. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The dissect_ber_constrained_bitstring function in epan/dissectors/packet-ber.c in the ASN.1 BER dissector in Wireshark 2.0.x before 2.0.2 does not verify that a certain length is nonzero, which allows remote attackers to cause a denial of service (out-of-bounds read and application crash) via a crafted packet.
Weakness: CWE-119
Which versions are affected by CVE-2016-2522?
It affects 1 product.
Products include Wireshark Wireshark.
How do I fix CVE-2016-2522?
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-2016-2522 being exploited?
There is no known exploitation of CVE-2016-2522 in the wild and no public exploit code.
Other vulnerabilities in Wireshark Wireshark
Sources
Also known as DEBIAN-CVE-2016-2522, GHSA-2g5w-fjfx-gpv9, UBUNTU-CVE-2016-2522.