SUSE update for libX11
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2021-31535 |
| CWE-ID | CWE-20 |
| Exploitation vector | Local |
| Public exploit | Public exploit code for vulnerability #1 is available. |
| Vulnerable software |
SUSE Linux Enterprise Software Development Kit Operating systems & Components / Operating system SUSE Linux Enterprise Server Operating systems & Components / Operating system libX11-data Operating systems & Components / Operating system package or component libX11-xcb1-debuginfo-32bit Operating systems & Components / Operating system package or component libX11-xcb1-32bit Operating systems & Components / Operating system package or component libX11-6-debuginfo-32bit Operating systems & Components / Operating system package or component libX11-6-32bit Operating systems & Components / Operating system package or component libX11-xcb1-debuginfo Operating systems & Components / Operating system package or component libX11-xcb1 Operating systems & Components / Operating system package or component libX11-6-debuginfo Operating systems & Components / Operating system package or component libX11-6 Operating systems & Components / Operating system package or component libX11-devel Operating systems & Components / Operating system package or component libX11-debugsource Operating systems & Components / Operating system package or component |
| Vendor | SUSE |
Security Bulletin
This security bulletin contains one low risk vulnerability.
1) Input validation error
EUVDB-ID: #VU53336
Risk: Low
CVSSv4.0: 1.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/U:Clear]
CVE-ID: CVE-2021-31535
CWE-ID:
CWE-20 - Improper input validation
Exploit availability: No
DescriptionThe vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of color names within the XLookupColor() function. A local user can run a specially crafted application on the system and perform a denial of service (DoS) attack.
MitigationUpdate the affected package libX11 to the latest version.
Vulnerable software versionsSUSE Linux Enterprise Software Development Kit: 12-SP5
SUSE Linux Enterprise Server: 12-SP5
libX11-data: before 1.6.2-12.18.1
libX11-xcb1-debuginfo-32bit: before 1.6.2-12.18.1
libX11-xcb1-32bit: before 1.6.2-12.18.1
libX11-6-debuginfo-32bit: before 1.6.2-12.18.1
libX11-6-32bit: before 1.6.2-12.18.1
libX11-xcb1-debuginfo: before 1.6.2-12.18.1
libX11-xcb1: before 1.6.2-12.18.1
libX11-6-debuginfo: before 1.6.2-12.18.1
libX11-6: before 1.6.2-12.18.1
libX11-devel: before 1.6.2-12.18.1
libX11-debugsource: before 1.6.2-12.18.1
CPE2.3- cpe:2.3:o:suse:suse_linux_enterprise_software_development_kit:12-SP5:*:*:*:*:*:*:*
- cpe:2.3:o:suse:suse_linux_enterprise_server:12-SP5:*:*:*:*:*:*:*
- cpe:2.3:a:suse:libx11-data:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:libx11-xcb1-debuginfo-32bit:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:libx11-xcb1-32bit:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:libx11-6-debuginfo-32bit:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:libx11-6-32bit:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:libx11-xcb1-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:libx11-xcb1:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:libx11-6-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:libx11-6:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:libx11-devel:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:libx11-debugsource:*:*:*:*:*:suse_linux:*:*
https://www.suse.com/support/update/announcement/2021/suse-su-20211766-1/
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. However, proof of concept for this vulnerability is available.
