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.

Wireshark 2.0.0 to 2.0.10
Wireshark 2.2.0 to 2.2.4

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