CVE-2020-26575: debian debian_linux Infinite Loop
CVSS: 7.5v3.1HighModified
AliasesUBUNTU-CVE-2020-26575DEBIAN-CVE-2020-26575
Published 06-10-2020Last modified 04-08-2024
Vulnerability summary
CVE-2020-26575 is a high (CVSS 7.5) Infinite Loop vulnerability in debian debian_linux. EPSS estimates a 3.12% chance of exploitation in the next 30 days, higher than 87.6% of scored vulnerabilities.
CVSS score
7.5/10
010
High · v3.1 (NVD)EPSS score
3.12%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 5 · Related 4Timeline
- 06-10-2020PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
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 metrics
4 scores · 3 sources · 2 versionsHigh 7.5Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Medium 5.0Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:N/I:N/A:PSourcesSingle source
EPSS trend
Probability
3.12%
Chance of exploitation in the next 30 days
Percentile
88%
Versus all other CVEs
30-day change
0.00 pp
From 3.12% on 19-09-2026
19-09-202619-10-2026
EPSS score3.12%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Debian2 products
- wireshark< 3.2.8-0.1
- debian_linuxEOL9.0
Fedoraproject1 product
- fedoraEOL32 | 33
Oracle1 product
Ubuntu1 product
- wiresharkAll versions (No fix recorded)
Wireshark1 product
- wireshark≤ 3.2.7
5 vendors · 6 products
References
15 links- gitlab.com/wireshark/wireshark/-/commit/3ff940652962c099b73ae3233322b8697b0d10abX Refsource MISCREPORTPatchThird Party Advisory
Show all 15 references
lists.debian.org/debian-lts-announce/2021/02/msg00008.htmlMailing ListX Refsource MLISTThird Party Advisory