SB2020120323 - Fedora 33 update for wireshark

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Main Vulnerability Database SB2020120323

SB2020120323 - Fedora 33 update for wireshark

Published: December 3, 2020 Updated: April 25, 2025

Security Bulletin ID SB2020120323
Severity
Medium
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 secuirty vulnerabilities.


1) Infinite loop (CVE-ID: CVE-2020-26575)

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

The vulnerability exists due to infinite loop within the Facebook Zero Protocol (aka FBZERO) dissector in epan/dissectors/packet-fbzero.c. A remote attacker can pass specially crafted traffic to the application, consume all available system resources and cause denial of service conditions.


2) Resource exhaustion (CVE-ID: CVE-2020-28030)

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

The vulnerability exists due to application does not properly control consumption of internal resources when processing data within GQUIC dissector in Wireshark. A remote attacker can pass specially crafted data to the application, trigger resource exhaustion and perform a denial of service (DoS) attack.


Remediation

Install update from vendor's website.

References