CVE-2017-9345
In Wireshark 2.2.0 to 2.2.6 and 2.0.0 to 2.0.12, the DNS dissector could go into an infinite loop.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (3.02%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
In Wireshark 2.2.0 to 2.2.6 and 2.0.0 to 2.0.12, the DNS dissector could go into an infinite loop. This was addressed in epan/dissectors/packet-dns.c by trying to detect self-referencing pointers.
- CVSS 3.0
- 7.5 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 3.02% probability · 87th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-835
- Affected
- wireshark/wireshark
- Source
- cve@mitre.org
EPSS 3.0% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://www.securityfocus.com/bid/98798Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1038612Third Party Advisory, VDB Entry
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=1206Issue Tracking, Third Party Advisory
- https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=13633Issue Tracking, Patch, Vendor Advisory
- https://code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=e280c9b637327a65d132bfe72d917b87e6844eb5
- https://www.wireshark.org/security/wnpa-sec-2017-26.htmlVendor Advisory
- http://www.securityfocus.com/bid/98798Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1038612Third Party Advisory, VDB Entry
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=1206Issue Tracking, Third Party Advisory
- https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=13633Issue Tracking, Patch, Vendor Advisory
- https://code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=e280c9b637327a65d132bfe72d917b87e6844eb5
- https://www.wireshark.org/security/wnpa-sec-2017-26.htmlVendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.