Red Hat Enterprise Linux 9 update for libreswan
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 5 |
| CVE-ID | CVE-2023-23009 CVE-2023-38711 CVE-2023-38710 CVE-2023-38712 CVE-2024-2357 |
| CWE-ID | CWE-617 CWE-476 CWE-20 CWE-388 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software |
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions Operating systems & Components / Operating system package or component libreswan (Red Hat package) Operating systems & Components / Operating system package or component |
| Vendor | Red Hat Inc. |
Security Bulletin
This security bulletin contains information about 5 vulnerabilities.
1) Reachable Assertion
EUVDB-ID: #VU72679
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-2023-23009
CWE-ID:
CWE-617 - Reachable Assertion
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a reachable assertion. A remote attacker can pass a specially crafted IKEv2 TS payload with an incorrect selector length and perform a denial of service (DoS) attack.
Install updates from vendor's website.
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions: 9.0
libreswan (Red Hat package): before 4.6-3.el9_0.3
CPE2.3- cpe:2.3:o:red_hat:red_hat_enterprise_linux_server_for_ibm_power_le_-_update_services_for_sap_solutions:9.0:*:*:*:*:*:*:*
- cpe:2.3:o:red_hat:libreswan_redhat_package:*:*:*:*:*:red_hat_enterprise_linux:*:*
http://access.redhat.com/errata/RHSA-2024:10594
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) NULL pointer dereference
EUVDB-ID: #VU79139
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-2023-38711
CWE-ID:
CWE-476 - NULL Pointer Dereference
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error when processing IKEv1 Quick Mode packets. A remote attacker can send specially crafted packets to the system and perform a denial of service (DoS) attack.
MitigationInstall updates from vendor's website.
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions: 9.0
libreswan (Red Hat package): before 4.6-3.el9_0.3
CPE2.3- cpe:2.3:o:red_hat:red_hat_enterprise_linux_server_for_ibm_power_le_-_update_services_for_sap_solutions:9.0:*:*:*:*:*:*:*
- cpe:2.3:o:red_hat:libreswan_redhat_package:*:*:*:*:*:red_hat_enterprise_linux:*:*
http://access.redhat.com/errata/RHSA-2024:10594
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.
3) Reachable Assertion
EUVDB-ID: #VU79138
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-2023-38710
CWE-ID:
CWE-617 - Reachable Assertion
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a reachable assertion when processing IKEv2 REKEY packets. A remote attacker can send specially crafted packets to the system and perform a denial of service (DoS) attack.
Install updates from vendor's website.
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions: 9.0
libreswan (Red Hat package): before 4.6-3.el9_0.3
CPE2.3- cpe:2.3:o:red_hat:red_hat_enterprise_linux_server_for_ibm_power_le_-_update_services_for_sap_solutions:9.0:*:*:*:*:*:*:*
- cpe:2.3:o:red_hat:libreswan_redhat_package:*:*:*:*:*:red_hat_enterprise_linux:*:*
http://access.redhat.com/errata/RHSA-2024:10594
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.
4) Input validation error
EUVDB-ID: #VU79140
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-2023-38712
CWE-ID:
CWE-20 - Improper input validation
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input when processing IKEv1 ISAKMP SA packets. A remote attacker can send specially crafted input to the system and perform a denial of service (DoS) attack.
MitigationInstall updates from vendor's website.
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions: 9.0
libreswan (Red Hat package): before 4.6-3.el9_0.3
CPE2.3- cpe:2.3:o:red_hat:red_hat_enterprise_linux_server_for_ibm_power_le_-_update_services_for_sap_solutions:9.0:*:*:*:*:*:*:*
- cpe:2.3:o:red_hat:libreswan_redhat_package:*:*:*:*:*:red_hat_enterprise_linux:*:*
http://access.redhat.com/errata/RHSA-2024:10594
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.
5) Error Handling
EUVDB-ID: #VU87342
Risk: Low
CVSSv4.0: 0.4 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2024-2357
CWE-ID:
CWE-388 - Error Handling
Exploit availability: No
DescriptionThe vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to incorrect handling of a missing PreSharedKey when a connection is configured to use reSharedKeys (authby=secret) and the connection cannot find a matching configured secret. When such a connection is automatically added on startup sing the auto= keyword, it can cause repeated crashes leading to a denial of service.Mitigation
Install updates from vendor's website.
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions: 9.0
libreswan (Red Hat package): before 4.6-3.el9_0.3
CPE2.3- cpe:2.3:o:red_hat:red_hat_enterprise_linux_server_for_ibm_power_le_-_update_services_for_sap_solutions:9.0:*:*:*:*:*:*:*
- cpe:2.3:o:red_hat:libreswan_redhat_package:*:*:*:*:*:red_hat_enterprise_linux:*:*
http://access.redhat.com/errata/RHSA-2024:10594
Q & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
