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CVE-2020-26422

Good to know:

Date: December 21, 2020

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

Language: C

Severity Score

3.7

Related Resources (9)

Url: https://www.wireshark.org/security/wnpa-sec-2020-20.html

Url: https://www.oracle.com/security-alerts/cpuApr2021.html

Url: https://gitlab.com/gitlab-org/cves/-/blob/master/2020/CVE-2020-26422.json

Url: https://security.gentoo.org/glsa/202101-12

Url: https://nvd.nist.gov/vuln/detail/CVE-2020-26422

Url: https://people.canonical.com/~ubuntu-security/cve/CVE-2020-26422

Url: https://security.alpinelinux.org/vuln/CVE-2020-26422

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

Url: https://www.mend.io/vulnerability-database/CVE-2020-26422

Severity Score

3.7

Weakness Type (CWE)

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

CWE-120

Top Fix

Upgrade Version

Upgrade to version wireshark-3.4.2

CVSS v3.1

Base Score:	3.7
Attack Vector (AV):	NETWORK
Attack Complexity (AC):	HIGH
Privileges Required (PR):	NONE
User Interaction (UI):	NONE
Scope (S):	UNCHANGED
Confidentiality (C):	NONE
Integrity (I):	NONE
Availability (A):	LOW

CVSS v2

Base Score:	5.0
Access Vector (AV):	NETWORK
Access Complexity (AC):	LOW
Authentication (AU):	NONE
Confidentiality (C):	NONE
Integrity (I):	NONE
Availability (A):	PARTIAL
Additional information:

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