CVE-2017-7703

Severity: high (CVSS 7.5 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 3.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2017-04-12 · updated 2026-06-17
Weakness: CWE-74

Description

In Wireshark 2.2.0 to 2.2.5 and 2.0.0 to 2.0.11, the IMAP dissector could crash, triggered by packet injection or a malformed capture file. This was addressed in epan/dissectors/packet-imap.c by calculating a line's end correctly.

Affected products

Debian Linux: 8.0
Wireshark Foundation Wireshark: 2.0.0, 2.0.1, 2.0.2, 2.0.3, 2.0.4, 2.0.5 (+12)

References

http://www.securityfocus.com/bid/97636
http://www.securitytracker.com/id/1038262
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=13466
https://code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=671e32820ab29d41d712cc8a472eab9b672684d9
https://lists.debian.org/debian-lts-announce/2019/01/msg00010.html
https://security.gentoo.org/glsa/201706-12
https://www.wireshark.org/security/wnpa-sec-2017-12.html
http://www.securityfocus.com/bid/97636
http://www.securitytracker.com/id/1038262
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=13466
https://code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=671e32820ab29d41d712cc8a472eab9b672684d9
https://lists.debian.org/debian-lts-announce/2019/01/msg00010.html

Get alerted when CVE-2017-7703 or the next vulnerability affects your stack