SB2022011930 - Multiple vulnerabilities in hostapd and wpa_supplicant

Description

This security bulletin contains information about 2 secuirty vulnerabilities.

1) Use of a broken or risky cryptographic algorithm (CVE-ID: CVE-2022-23303)

The vulnerability allows a remote attacker to gain access to sensitive information on the target system.

The vulnerability exists due to the implementations of SAE are vulnerable to side-channel attacks as a result of cache access patterns. A remote attacker with ability to install and execute applications can crack weak passwords when memory access patterns are visible in a shared cache.

2) Use of a broken or risky cryptographic algorithm (CVE-ID: CVE-2022-23304)

The vulnerability allows a remote attacker to gain access to sensitive information on the target system.

The vulnerability exists due to the implementations of EAP-PWD are vulnerable to side-channel attacks as a result of cache access patterns. A remote attacker with ability to install and execute applications can crack weak passwords when memory access patterns are visible in a shared cache.

Note, this vulnerability exists due to incomplete fix for #VU23960 (CVE-2019-9495).

Remediation

Install update from vendor's website.

References

• https://w1.fi/security/2022-1/