SB2022091913 - Multiple vulnerabilities in ConnMan

Description

This security bulletin contains information about 3 secuirty vulnerabilities.

1) Infinite loop (CVE-ID: CVE-2022-23098)

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

The vulnerability exists due to infinite loop when handling TCP connections. A remote attacker can send specially crafted packets to the application, consume all available system resources and cause denial of service conditions.

2) Out-of-bounds read (CVE-ID: CVE-2022-23097)

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

The vulnerability exists due to a boundary condition within the forward_dns_reply() function in the DNS proxy. A remote attacker can send specially crafted TCP packets to the application, trigger an out-of-bounds read error and read contents of memory on the system or perform a denial of service (DoS) attack.

3) Out-of-bounds read (CVE-ID: CVE-2022-23096)

The vulnerability allows a remote attacker to gain access to potentially sensitive information or perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary condition in the DNS proxy dnsproxy.c when handling Header Data in DNS responses. A remote attacker can send specially crafted TCP packets to the affected software, trigger an out-of-bounds read error and read contents of memory on the system or perform a denial of service (DoS) attack.

Remediation

Install update from vendor's website.

References

• https://git.kernel.org/pub/scm/network/connman/connman.git/log/
• https://www.openwall.com/lists/oss-security/2022/01/25/1
• https://lists.debian.org/debian-lts-announce/2022/02/msg00009.html