CVEvulnerability
CVE-2020-26575
7.5 HIGH
Official page ↗
- Status
- Modified
- Published
- 2020-10-06
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CVSS 2.0 ([email protected])
- 5.0 MEDIUM — AV:N/AC:L/Au:N/C:N/I:N/A:P
- Weaknesses
- CWE-835
Description
In Wireshark through 3.2.7, the Facebook Zero Protocol (aka FBZERO) dissector could enter an infinite loop. This was addressed in epan/dissectors/packet-fbzero.c by correcting the implementation of offset advancement.
Affected configurations
• wireshark wireshark (<= 3.2.7)
• fedoraproject fedora 32
• fedoraproject fedora 33
• debian debian linux 9.0
• oracle zfs storage appliance firmware 8.8
Related
Weakness · CWE (1)
- CWE-835 Loop with Unreachable Exit Condition weakness
References
- https://gitlab.com/wireshark/wireshark/-/commit/3ff940652962c099b73ae3233322b8697b0d10ab Patch, Third Party Advisory
- https://gitlab.com/wireshark/wireshark/-/issues/16887 Broken Link
- https://gitlab.com/wireshark/wireshark/-/merge_requests/467 Patch, Third Party Advisory
- https://gitlab.com/wireshark/wireshark/-/merge_requests/471 Patch, Third Party Advisory
- https://gitlab.com/wireshark/wireshark/-/merge_requests/472 Patch, Third Party Advisory
- https://gitlab.com/wireshark/wireshark/-/merge_requests/473 Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/02/msg00008.html Mailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UHZSVK7PO2LTGFQXFHFXY6SOMSQ7UPRS/ lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/V2667E6WKVE56G66BVBVD7LJPIDOJ7K3/ lists.fedoraproject.org
- https://security.gentoo.org/glsa/202011-08 Third Party Advisory
- https://www.oracle.com/security-alerts/cpujan2021.html Third Party Advisory
- https://www.wireshark.org/security/wnpa-sec-2020-14.html Vendor Advisory
- https://gitlab.com/wireshark/wireshark/-/commit/3ff940652962c099b73ae3233322b8697b0d10ab Patch, Third Party Advisory
- https://gitlab.com/wireshark/wireshark/-/issues/16887 Broken Link
- https://gitlab.com/wireshark/wireshark/-/merge_requests/467 Patch, Third Party Advisory
- https://gitlab.com/wireshark/wireshark/-/merge_requests/471 Patch, Third Party Advisory
- https://gitlab.com/wireshark/wireshark/-/merge_requests/472 Patch, Third Party Advisory
- https://gitlab.com/wireshark/wireshark/-/merge_requests/473 Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/02/msg00008.html Mailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UHZSVK7PO2LTGFQXFHFXY6SOMSQ7UPRS/ lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/V2667E6WKVE56G66BVBVD7LJPIDOJ7K3/ lists.fedoraproject.org
- https://security.gentoo.org/glsa/202011-08 Third Party Advisory
- https://www.oracle.com/security-alerts/cpujan2021.html Third Party Advisory
- https://www.wireshark.org/security/wnpa-sec-2020-14.html Vendor Advisory