CVE-2020-26575

Home/CVE/In Wireshark through 3.2.7, the Facebook Zero Protocol (aka FBZERO) dissector could enter an infinite loop. This was add

CVE

In Wireshark through 3.2.7, the Facebook Zero Protocol (aka FBZERO) dissector could enter an infinite loop. This was add

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.

HIGH · CVSS 7.5 EPSS 0.03706

Schedule remediation

CVSS base score ≥ 7.0

Sigma rules0 YARA rules0

⬡

Weakness Classification

CWE-835Loop with Unreachable Exit Condition ('Infinite Loop')

▤

Affected Products & Versions

4

wireshark<= 3.2.7
fedoraproject fedoraall versions
debian linuxall versions
oracle zfs storage appliance firmwareall versions

▣

Scoring & Timeline

7.5

HIGH · CVSS v3.1 · cve@mitre.org

View on NVD

Attack Vector

Network Adjacent Local Physical

Attack Complexity

Low High

Privileges Required

None Low High

User Interaction

None Required

Scope

Unchanged Changed

Confidentiality

None Low High

Integrity

None Low High

Availability

None Low High

Published to NVD06 Oct 2020 · 03:15 PM

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

⚑

Vendor Advisories

4

suse-csafopenSUSE-SU-2024:11513-1
suse-csafopenSUSE-SU-2020:2107-1
suse-csafopenSUSE-SU-2020:2076-1
suse-csafSUSE-SU-2020:3376-1

🔗

References & Sources

12

Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.

https://gitlab.com/wireshark/wireshark/-/commit/3ff940652962c099b73ae3233322b8697b0d10abPatchThird 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

Show all 12 references

https://lists.debian.org/debian-lts-announce/2021/02/msg00008.htmlMailing ListThird Party Advisory

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UHZSVK7PO2LTGFQXFHFXY6SOMSQ7UPRS/

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/V2667E6WKVE56G66BVBVD7LJPIDOJ7K3/

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

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