SUSE update for xorg-x11-server
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2021-4008 |
| CWE-ID | CWE-787 |
| Exploitation vector | Local |
| Public exploit | N/A |
| Vulnerable software |
SUSE Linux Enterprise Point of Sale Operating systems & Components / Operating system SUSE Linux Enterprise Debuginfo Operating systems & Components / Operating system SUSE Linux Enterprise Server Operating systems & Components / Operating system xorg-x11-server-debugsource Operating systems & Components / Operating system package or component xorg-x11-server-debuginfo Operating systems & Components / Operating system package or component xorg-x11-server-extra Operating systems & Components / Operating system package or component xorg-x11-server Operating systems & Components / Operating system package or component xorg-x11-Xvnc Operating systems & Components / Operating system package or component |
| Vendor | SUSE |
Security Bulletin
This security bulletin contains one low risk vulnerability.
1) Out-of-bounds write
EUVDB-ID: #VU59045
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-2021-4008
CWE-ID:
CWE-787 - Out-of-bounds write
Exploit availability: No
Description The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a boundary error in the SProcRenderCompositeGlyphs() function in the Render extension. A local user can send a specially crafted CompositeGlyphs request, trigger an out-of-bounds write and execute arbitrary code with elevated privileges.
Update the affected package xorg-x11-server to the latest version.
Vulnerable software versionsSUSE Linux Enterprise Point of Sale: 11-SP3
SUSE Linux Enterprise Debuginfo: 11-SP3 - 11-SP4
SUSE Linux Enterprise Server: 11-SP4-LTSS
xorg-x11-server-debugsource: before 7.4-27.122.43.1
xorg-x11-server-debuginfo: before 7.4-27.122.43.1
xorg-x11-server-extra: before 7.4-27.122.43.1
xorg-x11-server: before 7.4-27.122.43.1
xorg-x11-Xvnc: before 7.4-27.122.43.1
CPE2.3- cpe:2.3:o:suse:suse_linux_enterprise_point_of_sale:11-SP3:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_debuginfo:11-SP3:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_debuginfo:11-SP4:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_server:11-SP4-LTSS:*:*:*:*:*:*:*
- cpe:2.3:a:suse:xorg-x11-server-debugsource:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:xorg-x11-server-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:xorg-x11-server-extra:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:xorg-x11-server:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:xorg-x11-xvnc:*:*:*:*:*:suse_linux:*:*
https://www.suse.com/support/update/announcement/2021/suse-su-202114863-1/
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.
