Denial of service in ConnMan

1) Stack-based buffer overflow

EUVDB-ID: #VU75171

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-28488

CWE-ID: CWE-121 - Stack-based buffer overflow

Exploit availability: No

Description

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

The vulnerability exists due to a boundary error in the listener_event function in the ./gdhcp/client.c. A remote unauthenticated attacker can trigger stack-based buffer overflow and cause a denial of service condition on the target system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

ConnMan: 0.55 - 1.41

CPE2.3

• cpe:2.3:a:kernel_org:connman:0.55:*:*:*:*:*:*:*
• cpe:2.3:a:kernel_org:connman:0.56:*:*:*:*:*:*:*
• cpe:2.3:a:kernel_org:connman:0.57:*:*:*:*:*:*:*

External links

https://github.com/moehw/poc_exploits/tree/master/CVE-2023-28488
https://kernel.googlesource.com/pub/scm/network/connman/connman/+/99e2c16ea1cced34a5dc450d76287a1c3e762138

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.