CVE-2020-11647

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 3.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2020-04-10 · updated 2026-06-17
Weakness: CWE-674

Description

In Wireshark 3.2.0 to 3.2.2, 3.0.0 to 3.0.9, and 2.6.0 to 2.6.15, the BACapp dissector could crash. This was addressed in epan/dissectors/packet-bacapp.c by limiting the amount of recursion.

Affected products

Debian Linux: 9.0
openSUSE Leap: 15.1, 15.2
Wireshark Foundation Wireshark: from 2.6.0 through 2.6.15; from 3.0.0 through 3.0.9; from 3.2.0 through 3.2.2

References

http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00026.html
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00038.html
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=16474
https://code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=6f56fc9496db158218243ea87e3660c874a0bab0
https://lists.debian.org/debian-lts-announce/2021/02/msg00008.html
https://security.gentoo.org/glsa/202007-13
https://www.wireshark.org/security/wnpa-sec-2020-07.html
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00026.html
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00038.html
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=16474
https://code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=6f56fc9496db158218243ea87e3660c874a0bab0
https://lists.debian.org/debian-lts-announce/2021/02/msg00008.html

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