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.

Wireshark 2.0.0 to 2.0.10
Wireshark 2.2.0 to 2.2.4

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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

CVE-2017-6472
CVE-2017-6473
CVE-2017-6474
CVE-2017-6467
CVE-2017-6468
CVE-2017-6469
CVE-2017-6470
CVE-2017-6471