openEuler 20.03 LTS update for systemd-243-22
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2020-1712 |
| CWE-ID | CWE-416 |
| Exploitation vector | Local |
| Public exploit | N/A |
| Vulnerable software |
openEuler Operating systems & Components / Operating system systemd-udev-compat Operating systems & Components / Operating system package or component systemd-udev Operating systems & Components / Operating system package or component systemd-libs Operating systems & Components / Operating system package or component systemd-journal-remote Operating systems & Components / Operating system package or component systemd-help Operating systems & Components / Operating system package or component systemd-devel Operating systems & Components / Operating system package or component systemd-debugsource Operating systems & Components / Operating system package or component systemd-debuginfo Operating systems & Components / Operating system package or component systemd-container 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) Use-after-free
EUVDB-ID: #VU25332
Risk: Low
CVSSv4.0: 7.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:U/U:Clear]
CVE-ID: CVE-2020-1712
CWE-ID:
CWE-416 - Use After Free
Exploit availability: No
DescriptionThe vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error when processing dbus messages during asynchronous Polkit queries in bus-polkit.c in systemd. A local unprivileged user can send a specially crafted dbus message, trigger a use-after-free error and crash services or execute arbitrary code on the system with elevated privileges.
Install updates from vendor's repository.
Vulnerable software versionsopenEuler: 20.03 LTS
systemd-udev-compat: before 243-22
systemd-udev: before 243-22
systemd-libs: before 243-22
systemd-journal-remote: before 243-22
systemd-help: before 243-22
systemd-devel: before 243-22
systemd-debugsource: before 243-22
systemd-debuginfo: before 243-22
systemd-container: before 243-22
systemd: before 243-22
CPE2.3- cpe:2.3:o:openeuler:openeuler:20.03:LTS:*:*:*:*:*:*
- cpe:2.3:a:openeuler:systemd-udev-compat:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:systemd-udev:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:systemd-libs:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:systemd-journal-remote:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:systemd-help:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:systemd-devel:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:systemd-debugsource:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:systemd-debuginfo:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:systemd-container:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:systemd:*:*:*:*:*:openeuler:*:*
https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2020-1032
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.
