Home/CVE/Buffer overflow in QUIC dissector in Wireshark 3.4.0 to 3.4.1 allows denial of service via packet injection or crafted c
CVE

CVE-2020-26422

Buffer overflow in QUIC dissector in Wireshark 3.4.0 to 3.4.1 allows denial of service via packet injection or crafted c

Buffer overflow in QUIC dissector in Wireshark 3.4.0 to 3.4.1 allows denial of service via packet injection or crafted capture file.

LOW · CVSS 3.7 EPSS 0.00272
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
▤

Affected Products & Versions

2
wiresharkall versions
oracle zfs storage appliance kitall versions
▣

Scoring & Timeline

3.7
LOW · CVSS v3.1 · cve@gitlab.com
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 NVD21 Dec 2020 · 06:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
⚑

Vendor Advisories

4
suse-csafopenSUSE-SU-2024:11513-1
suse-csafopenSUSE-SU-2021:2125-1
suse-csafopenSUSE-SU-2021:0909-1
suse-csafSUSE-SU-2021:2125-1
🔗

References & Sources

5
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://gitlab.com/gitlab-org/cves/-/blob/master/2020/CVE-2020-26422.jsonThird Party Advisory
https://gitlab.com/wireshark/wireshark/-/issues/17073Issue TrackingThird Party Advisory
https://security.gentoo.org/glsa/202101-12Third Party Advisory
https://www.oracle.com/security-alerts/cpuApr2021.htmlPatchThird Party Advisory
https://www.wireshark.org/security/wnpa-sec-2020-20.htmlVendor Advisory
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