In Wireshark 2.6.0 to 2.6.1, 2.4.0 to 2.4.7, and 2.2.0 to 2.2.15, the ASN.1 BER dissector could crash. This was addressed in epan/dissectors/packet-ber.c by ensuring that length values do not exceed the maximum signed integer.
The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.
| Link | Tags |
|---|---|
| https://code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=9402f2f80c6bc7d25178a0875c5a1f5ee36361db | |
| http://www.securitytracker.com/id/1041608 | third party advisory vdb entry |
| https://lists.debian.org/debian-lts-announce/2018/07/msg00045.html | third party advisory mailing list |
| https://www.wireshark.org/security/wnpa-sec-2018-37.html | vendor advisory |
| http://www.securityfocus.com/bid/104847 | third party advisory vdb entry |
| https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=14682 | vendor advisory issue tracking |
| http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00027.html | vendor advisory |