KLA10965 Denial of service vulnerabilities in Wireshark

Multiple serious vulnerabilities have been found in Wireshark 2.0.0 to 2.0.10 and 2.2.0 to 2.2.4. Malicious users can exploit these vulnerabilities possibly to cause a denial of service.

Below is a complete list of vulnerabilities:

1. An LDSS dissector crash can be exploited remotely via packet injection or a malformed capture file possibly to cause a denial of service;
2. An IAX2 infinite loop can be exploited remotely via a malformed capture file or a packet injection possibly to cause a denial of service;
3. A WSP infinite loop can be exploited remotely via a malformed capture file or a packet injection possibly to cause a denial of service;
4. An RTMPT dissector infinite loop can be exploited remotely via a malformed capture file or a packet injection possibly to cause a denial of service;
5. A K12 file parser crash can be exploited remotely via a malformed capture file possibly to cause a denial of service;
6. A NetScaler file parser infinite loop can be exploited remotely via a malformed capture file possibly to cause a denial of service;
7. A NetScaler file parser crash can be exploited remotely via a malformed capture file possibly to cause a denial of service.

Technical details

Vulnerability (1) was found in epan/dissectors/packet-ldss.c when checking that memory allocation is done for a certain data structure.

Vulnerability (2) was found in epan/dissectors/packet-iax2.c when making constraints to packet lateness.

Vulnerability (3) was found in epan/dissectors/packet-wsp.c when validating the capability length.

Vulnerability (4) was found in epan/dissectors/packet-rtmpt.c when accurately incrementing a certain sequence value.

Vulnerability (5) was found in wiretap/k12.c when validating the relationships between offsets and lengths.

Vulnerability (6) was found in wiretap/netscaler.c when validating record sizes and changing the file size restrictions.

Vulnerability (7) was found in wiretap/netscaler.c when validating the relationship between records and pages.

Original advisories

wnpa-sec-2017-07

wnpa-sec-2017-09

wnpa-sec-2017-10

wnpa-sec-2017-03

wnpa-sec-2017-04

wnpa-sec-2017-05

wnpa-sec-2017-08

wnpa-sec-2017-11

Related products

Wireshark

CVE list

CVE-2017-6472 warning

CVE-2017-6473 warning

CVE-2017-6474 warning

CVE-2017-6467 warning

CVE-2017-6468 warning

CVE-2017-6469 warning

CVE-2017-6470 critical

CVE-2017-6471 warning

Solution

Update to the latest version

Download Wireshark

Impacts

• DoS

Denial of service. Exploitation of vulnerabilities with this impact can lead to loss of system availability or critical functional fault.

Affected Products

• Wireshark 2.0.0 to 2.0.10Wireshark 2.2.0 to 2.2.4