openEuler update for systemd
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2021-33910 |
| CWE-ID | CWE-789 |
| Exploitation vector | Local |
| Public exploit | Public exploit code for vulnerability #1 is available. |
| 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-devel Operating systems & Components / Operating system package or component systemd-container Operating systems & Components / Operating system package or component systemd-udev 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-debugsource Operating systems & Components / Operating system package or component systemd-journal-remote 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 Memory Allocation
EUVDB-ID: #VU55034
Risk: Low
CVSSv4.0: 5.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P/U:Clear]
CVE-ID: CVE-2021-33910
CWE-ID:
CWE-789 - Uncontrolled Memory Allocation
Exploit availability: Yes
DescriptionThe vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to stack exhaustion within the basic/unit-name.c in systemd. A local user can crash the systemd (PID 1) and cause a kernel panic.
Install updates from vendor's repository.
Vulnerable software versionsopenEuler: 20.03 LTS SP1 - 20.03 LTS SP2
systemd-help: before 243-37
systemd-libs: before 243-37
systemd-devel: before 243-37
systemd-container: before 243-37
systemd-udev: before 243-37
systemd-udev-compat: before 243-37
systemd-debuginfo: before 243-37
systemd-debugsource: before 243-37
systemd-journal-remote: before 243-37
systemd: before 243-37
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:a:openeuler:systemd-help:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:systemd-libs:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:systemd-devel:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:systemd-container:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:systemd-udev:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:systemd-udev-compat:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:systemd-debuginfo:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:systemd-debugsource:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:systemd-journal-remote:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:systemd:*:*:*:*:*:openeuler:*:*
https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2021-1271
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. However, proof of concept for this vulnerability is available.
