Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Wireshark | Wireshark | <= 3.2.7 |
| Fedoraproject | Fedora | 32 |
| Debian | Debian Linux | 9.0 |
| Oracle | Zfs Storage Appliance Firmware | 8.8 |
| Oracle | Zfs Storage Appliance | - |
Related Weaknesses (CWE)
References
- https://gitlab.com/wireshark/wireshark/-/commit/3ff940652962c099b73ae3233322b869PatchThird Party Advisory
- https://gitlab.com/wireshark/wireshark/-/issues/16887Broken Link
- https://gitlab.com/wireshark/wireshark/-/merge_requests/467PatchThird Party Advisory
- https://gitlab.com/wireshark/wireshark/-/merge_requests/471PatchThird Party Advisory
- https://gitlab.com/wireshark/wireshark/-/merge_requests/472PatchThird Party Advisory
- https://gitlab.com/wireshark/wireshark/-/merge_requests/473PatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/02/msg00008.htmlMailing ListThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://security.gentoo.org/glsa/202011-08Third Party Advisory
- https://www.oracle.com/security-alerts/cpujan2021.htmlThird Party Advisory
- https://www.wireshark.org/security/wnpa-sec-2020-14.htmlVendor Advisory
- https://gitlab.com/wireshark/wireshark/-/commit/3ff940652962c099b73ae3233322b869PatchThird Party Advisory
- https://gitlab.com/wireshark/wireshark/-/issues/16887Broken Link
- https://gitlab.com/wireshark/wireshark/-/merge_requests/467PatchThird Party Advisory
FAQ
What is CVE-2020-26575?
CVE-2020-26575 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 of...
How severe is CVE-2020-26575?
CVE-2020-26575 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-26575?
Check the references section above for vendor advisories and patch information. Affected products include: Wireshark Wireshark, Fedoraproject Fedora, Debian Debian Linux, Oracle Zfs Storage Appliance Firmware, Oracle Zfs Storage Appliance.