SUSE update for dnsmasq
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 3 |
| CVE-ID | CVE-2023-28450 CVE-2023-50387 CVE-2023-50868 |
| CWE-ID | CWE-400 |
| Exploitation vector | Network |
| Public exploit |
Public exploit code for vulnerability #2 is available. Public exploit code for vulnerability #3 is available. |
| Vulnerable software |
SUSE Linux Enterprise High Performance Computing LTSS 15 Operating systems & Components / Operating system SUSE Linux Enterprise High Performance Computing ESPOS 15 Operating systems & Components / Operating system SUSE Linux Enterprise Server 15 SP5 Operating systems & Components / Operating system SUSE Linux Enterprise Server 15 SP4 Operating systems & Components / Operating system SUSE Linux Enterprise Desktop 15 SP4 Operating systems & Components / Operating system openSUSE Leap Micro Operating systems & Components / Operating system Basesystem Module Operating systems & Components / Operating system SUSE Linux Enterprise Real Time 15 Operating systems & Components / Operating system openSUSE Leap Operating systems & Components / Operating system SUSE Linux Enterprise Server for SAP Applications 15 Operating systems & Components / Operating system SUSE Linux Enterprise Server 15 Operating systems & Components / Operating system SUSE Linux Enterprise Desktop 15 Operating systems & Components / Operating system SUSE Linux Enterprise Micro Operating systems & Components / Operating system SUSE Linux Enterprise Micro for Rancher Operating systems & Components / Operating system SUSE Linux Enterprise High Performance Computing 15 Operating systems & Components / Operating system SUSE Manager Retail Branch Server Operating systems & Components / Operating system SUSE Manager Server Operating systems & Components / Operating system SUSE Manager Proxy Operating systems & Components / Operating system dnsmasq-utils Operating systems & Components / Operating system package or component dnsmasq-utils-debuginfo Operating systems & Components / Operating system package or component dnsmasq Operating systems & Components / Operating system package or component dnsmasq-debugsource Operating systems & Components / Operating system package or component dnsmasq-debuginfo Operating systems & Components / Operating system package or component |
| Vendor | SUSE |
Security Bulletin
This security bulletin contains information about 3 vulnerabilities.
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
DescriptionThe 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.
Update the affected package dnsmasq to the latest version.
Vulnerable software versionsSUSE Linux Enterprise High Performance Computing LTSS 15: SP4 - SP5
SUSE Linux Enterprise High Performance Computing ESPOS 15: SP4 - SP5
SUSE Linux Enterprise Server 15 SP5: LTSS
SUSE Linux Enterprise Server 15 SP4: LTSS
SUSE Linux Enterprise Desktop 15 SP4: LTSS
openSUSE Leap Micro: 5.5
Basesystem Module: 15-SP6
SUSE Linux Enterprise Real Time 15: SP6
openSUSE Leap: 15.4 - 15.6
SUSE Linux Enterprise Server for SAP Applications 15: SP4 - SP6
SUSE Linux Enterprise Server 15: SP4 - SP6
SUSE Linux Enterprise Desktop 15: SP6
SUSE Linux Enterprise Micro: 5.3 - 5.5
SUSE Linux Enterprise Micro for Rancher: 5.3 - 5.4
SUSE Linux Enterprise High Performance Computing 15: SP4 - SP5
SUSE Manager Retail Branch Server: 4.3
SUSE Manager Server: 4.3
SUSE Manager Proxy: 4.3
dnsmasq-utils: before 2.90-150400.16.3.1
dnsmasq-utils-debuginfo: before 2.90-150400.16.3.1
dnsmasq: before 2.90-150400.16.3.1
dnsmasq-debugsource: before 2.90-150400.16.3.1
dnsmasq-debuginfo: before 2.90-150400.16.3.1
CPE2.3- cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing_ltss_15:SP4:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing_ltss_15:SP5:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing_espos_15:SP4:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing_espos_15:SP5:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_server_15_sp5:LTSS:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_server_15_sp4:LTSS:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_desktop_15_sp4:LTSS:*:*:*:*:*:*:*
- cpe:2.3:o:suse:opensuse_leap_micro:5.5:*:*:*:*:*:*:*
- cpe:2.3:o:suse:basesystem_module:15-SP6:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_real_time_15:SP6:*:*:*:*:*:*:*
- cpe:2.3:o:suse:opensuse_leap:15.4:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap_applications_15:SP4:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_server_15:SP4:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_desktop_15:SP6:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_micro:5.3:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_micro_for_rancher:5.3:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing_15:SP4:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_manager_retail_branch_server:4.3:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_manager_server:4.3:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_manager_proxy:4.3:*:*:*:*:*:*:*
- cpe:2.3:o:suse:dnsmasq-utils:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:dnsmasq-utils-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:dnsmasq:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:dnsmasq-debugsource:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:dnsmasq-debuginfo:*:*:*:*:*:suse_linux:*:*
https://www.suse.com/support/update/announcement/2025/suse-su-20250071-1/
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.
2) Resource exhaustion
EUVDB-ID: #VU86377
Risk: Medium
CVSSv4.0: 7.7 [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:P/U:Green]
CVE-ID: CVE-2023-50387
CWE-ID:
CWE-400 - Resource exhaustion
Exploit availability: Yes
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to improper input validation when processing DNSSEC related records. A remote attacker can trigger resource exhaustion by forcing the DNS server to query a specially crafted DNSSEC zone and perform a denial of service (DoS) attack.
MitigationUpdate the affected package dnsmasq to the latest version.
Vulnerable software versionsSUSE Linux Enterprise High Performance Computing LTSS 15: SP4 - SP5
SUSE Linux Enterprise High Performance Computing ESPOS 15: SP4 - SP5
SUSE Linux Enterprise Server 15 SP5: LTSS
SUSE Linux Enterprise Server 15 SP4: LTSS
SUSE Linux Enterprise Desktop 15 SP4: LTSS
openSUSE Leap Micro: 5.5
Basesystem Module: 15-SP6
SUSE Linux Enterprise Real Time 15: SP6
openSUSE Leap: 15.4 - 15.6
SUSE Linux Enterprise Server for SAP Applications 15: SP4 - SP6
SUSE Linux Enterprise Server 15: SP4 - SP6
SUSE Linux Enterprise Desktop 15: SP6
SUSE Linux Enterprise Micro: 5.3 - 5.5
SUSE Linux Enterprise Micro for Rancher: 5.3 - 5.4
SUSE Linux Enterprise High Performance Computing 15: SP4 - SP5
SUSE Manager Retail Branch Server: 4.3
SUSE Manager Server: 4.3
SUSE Manager Proxy: 4.3
dnsmasq-utils: before 2.90-150400.16.3.1
dnsmasq-utils-debuginfo: before 2.90-150400.16.3.1
dnsmasq: before 2.90-150400.16.3.1
dnsmasq-debugsource: before 2.90-150400.16.3.1
dnsmasq-debuginfo: before 2.90-150400.16.3.1
CPE2.3- cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing_ltss_15:SP4:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing_ltss_15:SP5:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing_espos_15:SP4:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing_espos_15:SP5:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_server_15_sp5:LTSS:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_server_15_sp4:LTSS:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_desktop_15_sp4:LTSS:*:*:*:*:*:*:*
- cpe:2.3:o:suse:opensuse_leap_micro:5.5:*:*:*:*:*:*:*
- cpe:2.3:o:suse:basesystem_module:15-SP6:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_real_time_15:SP6:*:*:*:*:*:*:*
- cpe:2.3:o:suse:opensuse_leap:15.4:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap_applications_15:SP4:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_server_15:SP4:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_desktop_15:SP6:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_micro:5.3:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_micro_for_rancher:5.3:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing_15:SP4:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_manager_retail_branch_server:4.3:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_manager_server:4.3:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_manager_proxy:4.3:*:*:*:*:*:*:*
- cpe:2.3:o:suse:dnsmasq-utils:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:dnsmasq-utils-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:dnsmasq:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:dnsmasq-debugsource:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:dnsmasq-debuginfo:*:*:*:*:*:suse_linux:*:*
https://www.suse.com/support/update/announcement/2025/suse-su-20250071-1/
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. However, proof of concept for this vulnerability is available.
3) Resource exhaustion
EUVDB-ID: #VU86378
Risk: Medium
CVSSv4.0: 7.7 [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:P/U:Green]
CVE-ID: CVE-2023-50868
CWE-ID:
CWE-400 - Resource exhaustion
Exploit availability: Yes
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to improper input validation when processing DNSSEC related records. A remote attacker can trigger resource exhaustion by forcing the DNS server to query a specially crafted DNSSEC zone and perform a denial of service (DoS) attack.
MitigationUpdate the affected package dnsmasq to the latest version.
Vulnerable software versionsSUSE Linux Enterprise High Performance Computing LTSS 15: SP4 - SP5
SUSE Linux Enterprise High Performance Computing ESPOS 15: SP4 - SP5
SUSE Linux Enterprise Server 15 SP5: LTSS
SUSE Linux Enterprise Server 15 SP4: LTSS
SUSE Linux Enterprise Desktop 15 SP4: LTSS
openSUSE Leap Micro: 5.5
Basesystem Module: 15-SP6
SUSE Linux Enterprise Real Time 15: SP6
openSUSE Leap: 15.4 - 15.6
SUSE Linux Enterprise Server for SAP Applications 15: SP4 - SP6
SUSE Linux Enterprise Server 15: SP4 - SP6
SUSE Linux Enterprise Desktop 15: SP6
SUSE Linux Enterprise Micro: 5.3 - 5.5
SUSE Linux Enterprise Micro for Rancher: 5.3 - 5.4
SUSE Linux Enterprise High Performance Computing 15: SP4 - SP5
SUSE Manager Retail Branch Server: 4.3
SUSE Manager Server: 4.3
SUSE Manager Proxy: 4.3
dnsmasq-utils: before 2.90-150400.16.3.1
dnsmasq-utils-debuginfo: before 2.90-150400.16.3.1
dnsmasq: before 2.90-150400.16.3.1
dnsmasq-debugsource: before 2.90-150400.16.3.1
dnsmasq-debuginfo: before 2.90-150400.16.3.1
CPE2.3- cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing_ltss_15:SP4:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing_ltss_15:SP5:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing_espos_15:SP4:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing_espos_15:SP5:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_server_15_sp5:LTSS:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_server_15_sp4:LTSS:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_desktop_15_sp4:LTSS:*:*:*:*:*:*:*
- cpe:2.3:o:suse:opensuse_leap_micro:5.5:*:*:*:*:*:*:*
- cpe:2.3:o:suse:basesystem_module:15-SP6:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_real_time_15:SP6:*:*:*:*:*:*:*
- cpe:2.3:o:suse:opensuse_leap:15.4:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap_applications_15:SP4:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_server_15:SP4:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_desktop_15:SP6:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_micro:5.3:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_micro_for_rancher:5.3:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_high_performance_computing_15:SP4:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_manager_retail_branch_server:4.3:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_manager_server:4.3:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_manager_proxy:4.3:*:*:*:*:*:*:*
- cpe:2.3:o:suse:dnsmasq-utils:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:dnsmasq-utils-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:dnsmasq:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:dnsmasq-debugsource:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:o:suse:dnsmasq-debuginfo:*:*:*:*:*:suse_linux:*:*
https://www.suse.com/support/update/announcement/2025/suse-su-20250071-1/
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. However, proof of concept for this vulnerability is available.
