SB2021021138 - Ubuntu update for wpa

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Main Vulnerability Database SB2021021138

SB2021021138 - Ubuntu update for wpa

Published: February 11, 2021 Updated: August 7, 2022

Security Bulletin ID SB2021021138
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) Input validation error (CVE-ID: CVE-2020-12695)

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

The vulnerability exists due to a CallStranger issue in the UPnP SUBSCRIBE functionality. A remote attacker can send traffic to arbitrary destinations, leading to amplified DDoS attacks and data exfiltration.


2) Out-of-bounds write (CVE-ID: CVE-2021-0326)

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error when processing untrusted input within the p2p_copy_client_info() function of p2p.c in wpa_suplicant. A remote attacker pass specially crafted input to the application, trigger out-of-bounds write and execute arbitrary code on the target system.


Remediation

Install update from vendor's website.

References