SB2020040633 - Fedora 31 update for wireshark

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Main Vulnerability Database SB2020040633

SB2020040633 - Fedora 31 update for wireshark

Published: April 6, 2020 Updated: April 25, 2025

Security Bulletin ID SB2020040633
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 5
Exploitation vector Remote access
Highest impact Partial DoS

Breakdown by Severity

Medium 40% Low 60%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 5 vulnerabilities.


1) Off-by-one (CVE-ID: CVE-2020-7044)

CWE-ID: CWE-193 - Off-by-one Error

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to an off-by-one error within the WASSP dissector. A remote attacker can send specially crafted network traffic, trigger an off-by-one error and crash the application.


2) Input validation error (CVE-ID: CVE-2020-9428)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input in EAP dissector within "epan/dissectors/packet-eap.c" . A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.


3) Input validation error (CVE-ID: CVE-2020-9430)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input in WiMax DLMAP dissector within "plugins/epan/wimax/msg_dlmap.c". A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.


4) Memory leak (CVE-ID: CVE-2020-9431)

CWE-ID: CWE-401 - Missing release of memory after effective lifetime

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote attacker to perform DoS attack on the target system.

The vulnerability exists due memory leak in LTE RRC dissector within "epan/dissectors/packet-lte-rrc.c". A remote attacker can pass specially crafted data to the application and perform denial of service attack.


5) Input validation error (CVE-ID: CVE-2020-9429)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input in WireGuard dissector in "epan/dissectors/packet-wireguard.c". A remote attacker can perform a denial of service (DoS) attack.


Remediation

Install update from vendor's website.

References