openEuler update for xorg-x11-server
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 2 |
| CVE-ID | CVE-2020-25712 CVE-2020-14347 |
| CWE-ID | CWE-122 CWE-665 |
| Exploitation vector | Local |
| Public exploit | N/A |
| Vulnerable software Subscribe |
openEuler Operating systems & Components / Operating system xorg-x11-server-help Operating systems & Components / Operating system package or component xorg-x11-server-debugsource Operating systems & Components / Operating system package or component xorg-x11-server-devel Operating systems & Components / Operating system package or component xorg-x11-server-Xephyr Operating systems & Components / Operating system package or component xorg-x11-server-debuginfo Operating systems & Components / Operating system package or component xorg-x11-server Operating systems & Components / Operating system package or component |
| Vendor | openEuler |
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
1) Heap-based buffer overflow
EUVDB-ID: #VU48759
Risk: Low
CVSSv3.1: 7.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-25712
CWE-ID:
CWE-122 - Heap-based Buffer Overflow
Exploit availability: No
DescriptionThe vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a boundary error within XkbSetDeviceInfo functionality. A local user can pass specially crafted data to the application, trigger heap-based buffer overflow and execute arbitrary code on the target system with elevated privileges.
Install updates from vendor's repository.
Vulnerable software versionsopenEuler: 20.03 LTS - 20.03 LTS SP1
xorg-x11-server-help: before 1.20.8-4
xorg-x11-server-debugsource: before 1.20.8-4
xorg-x11-server-devel: before 1.20.8-4
xorg-x11-server-Xephyr: before 1.20.8-4
xorg-x11-server-debuginfo: before 1.20.8-4
xorg-x11-server: before 1.20.8-4
External linkshttp://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2021-1078
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.
2) Improper Initialization
EUVDB-ID: #VU45684
Risk: Low
CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-14347
CWE-ID:
CWE-665 - Improper Initialization
Exploit availability: No
DescriptionThe vulnerability allows a local authenticated user to gain access to sensitive information.
A flaw was found in the way xserver memory was not properly initialized. This could leak parts of server memory to the X client. In cases where Xorg server runs with elevated privileges, this could result in possible ASLR bypass. Xorg-server before version 1.20.9 is vulnerable.
MitigationInstall updates from vendor's repository.
Vulnerable software versionsopenEuler: 20.03 LTS - 20.03 LTS SP1
xorg-x11-server-help: before 1.20.8-4
xorg-x11-server-debugsource: before 1.20.8-4
xorg-x11-server-devel: before 1.20.8-4
xorg-x11-server-Xephyr: before 1.20.8-4
xorg-x11-server-debuginfo: before 1.20.8-4
xorg-x11-server: before 1.20.8-4
External linkshttp://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2021-1078
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.
