openEuler update for systemd
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2021-3997 |
| CWE-ID | CWE-674 |
| Exploitation vector | Local |
| Public exploit | N/A |
| Vulnerable software |
openEuler Operating systems & Components / Operating system systemd-help Operating systems & Components / Operating system package or component systemd-libs Operating systems & Components / Operating system package or component systemd-udev-compat Operating systems & Components / Operating system package or component systemd-debuginfo Operating systems & Components / Operating system package or component systemd-journal-remote Operating systems & Components / Operating system package or component systemd-udev Operating systems & Components / Operating system package or component systemd-debugsource Operating systems & Components / Operating system package or component systemd-container Operating systems & Components / Operating system package or component systemd-devel Operating systems & Components / Operating system package or component systemd Operating systems & Components / Operating system package or component |
| Vendor | openEuler |
Security Bulletin
This security bulletin contains one low risk vulnerability.
1) Uncontrolled recursion
EUVDB-ID: #VU59358
Risk: Low
CVSSv4.0: 5.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H/E:U/U:Clear]
CVE-ID: CVE-2021-3997
CWE-ID:
CWE-674 - Uncontrolled Recursion
Exploit availability: No
DescriptionThe vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to uncontrolled recursion in systemd-tmpfiles. A local user can create multiple nested directories in the /tmp folder and case systemd to crash during the system boot.
Install updates from vendor's repository.
Vulnerable software versionsopenEuler: 20.03 LTS SP1 - 20.03 LTS SP3
systemd-help: before 243-49
systemd-libs: before 243-49
systemd-udev-compat: before 243-49
systemd-debuginfo: before 243-49
systemd-journal-remote: before 243-49
systemd-udev: before 243-49
systemd-debugsource: before 243-49
systemd-container: before 243-49
systemd-devel: before 243-49
systemd: before 243-49
CPE2.3- cpe:2.3:o:openeuler:openeuler:20.03:LTS SP1:*:*:*:*:*:*
- cpe:2.3:o:openeuler:openeuler:20.03:LTS SP2:*:*:*:*:*:*
- cpe:2.3:o:openeuler:openeuler:20.03:LTS SP3:*:*:*:*:*:*
- cpe:2.3:a:openeuler:systemd-help:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:systemd-libs:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:systemd-udev-compat:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:systemd-debuginfo:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:systemd-journal-remote:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:systemd-udev:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:systemd-debugsource:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:systemd-container:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:systemd-devel:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:systemd:*:*:*:*:*:openeuler:*:*
https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2022-1503
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.
