CVE-2020-26422 : Buffer overflow in QUIC dissector in Wireshark 3.4.0 to 3.4.1 allows denial of s

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

Published 2020-12-21 18:15:15

Updated 2022-09-02 15:32:47

Source GitLab Inc.

View at NVD, CVE.org

Vulnerability category: OverflowDenial of service

Products affected by CVE-2020-26422

Oracle » Zfs Storage Appliance Kit » Version: 8.8
cpe:2.3:a:oracle:zfs_storage_appliance_kit:8.8:*:*:*:*:*:*:*
Matching versions
Wireshark » Wireshark » Version: 3.4.0
cpe:2.3:a:wireshark:wireshark:3.4.0:*:*:*:*:*:*:*
Matching versions
Wireshark » Wireshark » Version: 3.4.1
cpe:2.3:a:wireshark:wireshark:3.4.1:*:*:*:*:*:*:*
Matching versions

EPSS FAQ

0.29%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 68 %

Percentile, the proportion of vulnerabilities that are scored at or less

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
5.0	MEDIUM	AV:N/AC:L/Au:N/C:N/I:N/A:P	10.0	2.9	NIST
Access Vector: Network Access Complexity: Low Authentication: None Confidentiality Impact: None Integrity Impact: None Availability Impact: Partial
3.7	LOW	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L	2.2	1.4	GitLab Inc.
Attack Vector: Network Attack Complexity: High Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: None Integrity: None Availability: Low
5.3	MEDIUM	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L	3.9	1.4	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: None Integrity: None Availability: Low

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

The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow.

Assigned by: nvd@nist.gov (Primary)

https://gitlab.com/wireshark/wireshark/-/issues/17073

Buildbot crash output: fuzz-2020-12-09-3589621.pcap (#17073) · Issues · Wireshark Foundation / wireshark · GitLab
Issue Tracking;Third Party Advisory
https://gitlab.com/gitlab-org/cves/-/blob/master/2020/CVE-2020-26422.json

2020/CVE-2020-26422.json · master · GitLab.org / cves · GitLab
Third Party Advisory
https://www.oracle.com/security-alerts/cpuApr2021.html

Oracle Critical Patch Update Advisory - April 2021
Patch;Third Party Advisory

CVEs referencing this url
https://www.wireshark.org/security/wnpa-sec-2020-20.html

Wireshark · wnpa-sec-2020-20 · QUIC dissector crash
Vendor Advisory
https://security.gentoo.org/glsa/202101-12

Wireshark: Multiple vulnerabilities (GLSA 202101-12) — Gentoo security
Third Party Advisory

CVEs referencing this url

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