CVE-2020-26575
HIGH
7.5
CVSS Score
Published: October 6, 2020 at 02:57 PM UTC
Updated: June 17, 2026 at 03:08 AM UTC
5 products affected across 4 vendorsDebian LinuxFedoraWireshark
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Severity
HIGH7.5
Exploit prediction
EPSS 3%
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
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
- https://gitlab.com/wireshark/wireshark/-/commit/3ff940652962c099b73ae3233322b8697b0d10ab
- https://gitlab.com/wireshark/wireshark/-/merge_requests/467
- https://gitlab.com/wireshark/wireshark/-/merge_requests/471
- https://gitlab.com/wireshark/wireshark/-/merge_requests/472
- https://gitlab.com/wireshark/wireshark/-/merge_requests/473
References (12)
x_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://gitlab.com/wireshark/wireshark/-/commit/3ff940652962c099b73ae3233322b8697b0d10abx_refsource_MISCBroken Link
Source: [email protected]
https://gitlab.com/wireshark/wireshark/-/issues/16887x_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://gitlab.com/wireshark/wireshark/-/merge_requests/467x_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://gitlab.com/wireshark/wireshark/-/merge_requests/471x_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://gitlab.com/wireshark/wireshark/-/merge_requests/472x_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://gitlab.com/wireshark/wireshark/-/merge_requests/473Mailing Listx_refsource_MLISTThird Party Advisory
Source: [email protected]
https://lists.debian.org/debian-lts-announce/2021/02/msg00008.htmlVendor Advisoryx_refsource_FEDORA
Source: [email protected]
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UHZSVK7PO2LTGFQXFHFXY6SOMSQ7UPRS/CVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-835
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