SUSE update for chrony

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

Description

The 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).

Mitigation

Update the affected package chrony to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Micro: 5.2

libaugeas0-debuginfo: before 1.10.1-3.9.1

libaugeas0: before 1.10.1-3.9.1

augeas-lenses: before 1.10.1-3.9.1

augeas-debugsource: before 1.10.1-3.9.1

augeas-debuginfo: before 1.10.1-3.9.1

augeas: before 1.10.1-3.9.1

CPE2.3

• cpe:2.3:o:suse:suse_linux_enterprise_micro:5.2:*:*:*:*:*:*:*
• cpe:2.3:a:suse:libaugeas0-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:libaugeas0:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:augeas-lenses:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:augeas-debugsource:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:augeas-debuginfo:*:*:*:*:*:suse_linux:*:*
• cpe:2.3:a:suse:augeas:*:*:*:*:*:suse_linux:*:*

External links

https://www.suse.com/support/update/announcement/2022/suse-su-20220845-2/

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.