SUSE update for dnsmasq

1) Resource exhaustion

EUVDB-ID: #VU75389

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-2023-28450

CWE-ID: CWE-400 - Resource exhaustion

Exploit availability: No

Description

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

The vulnerability exists due to application does not properly perform fragmentation of UDP packets. A remote attacker can trigger resource exhaustion by sending overly large DNS UDP packets.

Mitigation

Update the affected package dnsmasq to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Micro for Rancher: 5.2

SUSE Linux Enterprise Real Time 15: SP3

SUSE Linux Enterprise Micro: 5.1 - 5.2

dnsmasq-debugsource: before 2.86-150100.7.23.1

dnsmasq: before 2.86-150100.7.23.1

dnsmasq-debuginfo: before 2.86-150100.7.23.1

CPE2.3

• cpe:2.3:o:suse:suse_linux_enterprise_micro_for_rancher:5.2:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_real_time_15:SP3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_micro:5.1:*:*:*:*:*:*:*
• cpe:2.3:o:suse:suse_linux_enterprise_micro:5.2:*:*:*:*:*:*:*
• cpe:2.3:a:suse:dnsmasq-debugsource:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:dnsmasq:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:dnsmasq-debuginfo:*:*:*:*:*:suse_linux:*:*

External links

https://www.suse.com/support/update/announcement/2023/suse-su-20231930-1/

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.