High severity · published Oct 6, 2020
CVE-2020-26575
In Wireshark through 3.2.7, the Facebook Zero Protocol (aka FBZERO) dissector could enter an infinite loop
7.5
CVSS
3.1%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)3.1% · higher than 88% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DL
Debian Linux · Debian
9.0 · source: NVD
FE
Fedora · Fedoraproject
32; 33 · source: NVD
WI
Wireshark · Wireshark
through 3.2.7 · source: NVD
ZS
Zfs Storage Appliance Firmware · Oracle
8.8 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-26575
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-26575
Patch
https://gitlab.com/wireshark/wireshark/-/commit/3ff940652962c099b73ae3233322b8697b0d10ab
Broken Link
https://gitlab.com/wireshark/wireshark/-/issues/16887
Patch
https://gitlab.com/wireshark/wireshark/-/merge_requests/467
Patch
https://gitlab.com/wireshark/wireshark/-/merge_requests/471
Patch
https://gitlab.com/wireshark/wireshark/-/merge_requests/472
Patch
https://gitlab.com/wireshark/wireshark/-/merge_requests/473
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