CVE-2018-18225

In Wireshark 2.6.0 to 2.6.3, the CoAP dissector could crash. This was addressed in epan/dissectors/packet-coap.c by ensuring that the piv length is correctly computed.

Weakness

The product performs a calculation that generates incorrect or unintended results that are later used in security-critical decisions or resource management.

Affected Software

Potential Mitigations

• Use languages, libraries, or frameworks that make it easier to handle numbers without unexpected consequences.
• Examples include safe integer handling packages such as SafeInt (C++) or IntegerLib (C or C++).
• Use languages, libraries, or frameworks that make it easier to handle numbers without unexpected consequences.
• Examples include safe integer handling packages such as SafeInt (C++) or IntegerLib (C or C++).

Related Attack Patterns

• https://cwe.mitre.org/data/definitions/128.html
• https://cwe.mitre.org/data/definitions/129.html

References

• http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00027.html
• http://www.securityfocus.com/bid/105583
• http://www.securitytracker.com/id/1041909
• https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=15172
• https://code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=b2bbd9fdf209911d94b23cc33f4daccbceb7fa8a
• https://www.debian.org/security/2018/dsa-4359
• https://www.wireshark.org/security/wnpa-sec-2018-49.html
• http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00027.html
• http://www.securityfocus.com/bid/105583
• http://www.securitytracker.com/id/1041909
• https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=15172
• https://code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=b2bbd9fdf209911d94b23cc33f4daccbceb7fa8a
• https://www.debian.org/security/2018/dsa-4359
• https://www.wireshark.org/security/wnpa-sec-2018-49.html