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

Description

The 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.

Mitigation

Update the affected package libX11 to the latest version.

Vulnerable software versions

SUSE 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 External links

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.



###SIDEBAR###