SUSE update for chrony
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2020-14367 |
| CWE-ID | CWE-59 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software |
SUSE OpenStack Cloud Crowbar Operating systems & Components / Operating system SUSE Linux Enterprise Server for SAP Operating systems & Components / Operating system HPE Helion Openstack Operating systems & Components / Operating system SUSE Linux Enterprise Server Operating systems & Components / Operating system SUSE OpenStack Cloud Operating systems & Components / Operating system chrony-debugsource Operating systems & Components / Operating system package or component chrony-debuginfo Operating systems & Components / Operating system package or component chrony Operating systems & Components / Operating system package or component |
| Vendor | SUSE |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
1) Link following
EUVDB-ID: #VU46134
Risk: Medium
CVSSv4.0: 1.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]
CVE-ID: CVE-2020-14367
CWE-ID:
CWE-59 - Improper Link Resolution Before File Access ('Link Following')
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to compromise the target system.
The vulnerability exists due to a symlink following issue when creating the PID file under the "/var/run/chrony" folder. A remote authenticated attacker can create a symlink with the default PID file name pointing to any destination file in the system, resulting in data loss and a denial of service (DoS).
MitigationUpdate the affected package chrony to the latest version.
Vulnerable software versionsSUSE OpenStack Cloud Crowbar: 8 - 9
SUSE Linux Enterprise Server for SAP: 12-SP3 - 12-SP4
HPE Helion Openstack: 8
SUSE Linux Enterprise Server: 12-SP2-BCL - 12-SP5
SUSE OpenStack Cloud: 8 - 9
chrony-debugsource: before 4.1-5.9.1
chrony-debuginfo: before 4.1-5.9.1
chrony: before 4.1-5.9.1
CPE2.3- cpe:2.3:o:suse:suse_openstack_cloud_crowbar:8:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_openstack_cloud_crowbar:9:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap:12-SP3:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_server_for_sap:12-SP4:*:*:*:*:*:*:*
- cpe:2.3:o:suse:hpe_helion_openstack:8:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_server:12-SP2-BCL:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_server:12-SP3-BCL:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_server:12-SP3-LTSS:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_openstack_cloud:8:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_openstack_cloud:9:*:*:*:*:*:*:*
- cpe:2.3:a:suse:chrony-debugsource:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:chrony-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:chrony:*:*:*:*:*:suse_linux:*:*
https://www.suse.com/support/update/announcement/2021/suse-su-20214147-1/
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
