KLA11034
Multiple vulnerabilities in Wireshark

Multiple serious vulnerabilities have been found in Wireshark. Malicious users can exploit these vulnerabilities possibly to cause a denial of service.

Below is a complete list of vulnerabilities:

1. An improper handling of dividing by zero in the L2CAP dissector can be exploited remotely via a specially designed packet, which is injected onto the wire, or by convincing a user to handle a specially designed packet trace file to cause a denial of service;
2. Multiple unspecified vulnerabilities in the MSNIP, RGMP, IPv6 dissectors can be exploited remotely via a specially designed packet, which is injected onto the wire, or by convincing a user to handle a specially designed packet trace file to cause a denial of service;
3. An unspecified vulnerability in the openSAFETY dissector can be exploited remotely via a specially designed packet, which is injected onto the wire, or by convincing a user to handle a specially designed packet trace file to cause a denial of service;
4. An infinite loop in the DICOM dissector can be exploited remotely via a specially designed packet, which is injected onto the wire, or by convincing a user to handle a specially designed packet trace file to cause a denial of service;
5. Infinite loops in the DNS, SoulSeek and Bazaar dissectors can be exploited remotely via a specially designed packet, which is injected onto the wire, or by convincing a user to handle a specially designed packet trace file to cause a denial of service;
6. An out-of-bounds read in the DHCP and DOF dissectors can be exploited remotely via a specially designed packet, which is injected onto the wire, or by convincing a user to handle a specially designed packet trace file to cause a denial of service;
7. A null pointer dereference in the ROS dissector can be exploited remotely via a specially designed packet, which is injected onto the wire, or by convincing a user to handle a specially designed packet trace file to cause a denial of service;

Technical details

In case of vulnerability (3), denial of service can be a crash or a system memory exhaustion.

Denial of service, which might become a result of exploiting vulnerabilities (5), occurs because of consuming excessive CPU resources.

Wireshark 2.0.x before 2.0.13
Wireshark 2.2.x before 2.2.7

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wnpa-sec-2017-31
wnpa-sec-2017-33
wnpa-sec-2017-26
wnpa-sec-2017-27
wnpa-sec-2017-28
wnpa-sec-2017-29
wnpa-sec-2017-30
wnpa-sec-2017-24
wnpa-sec-2017-32
wnpa-sec-2017-22
wnpa-sec-2017-23
wnpa-sec-2017-25

The following public exploits exists for this vulnerability:

https://www.exploit-db.com/exploits/42124

https://www.exploit-db.com/exploits/42123