Ubuntu alert USN-4966-1 (libx11)
| From: | Marc Deslauriers <marc.deslauriers@canonical.com> | |
| To: | "ubuntu-security-announce@lists.ubuntu.com" <ubuntu-security-announce@lists.ubuntu.com> | |
| Subject: | [USN-4966-1] libx11 vulnerability | |
| Date: | Tue, 25 May 2021 14:09:42 -0400 | |
| Message-ID: | <8f88ea70-912d-790f-6556-5008c6fcfd9e@canonical.com> |
========================================================================== Ubuntu Security Notice USN-4966-1 May 25, 2021 libx11 vulnerability ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 21.04 - Ubuntu 20.10 - Ubuntu 20.04 LTS - Ubuntu 18.04 LTS Summary: libx11 could allow unintended access to services. Software Description: - libx11: X11 client-side library Details: It was discovered that libx11 incorrectly validated certain parameter lengths. A remote attacker could possibly use this issue to trick libx11 into emitting extra X protocol requests. Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 21.04: libx11-6 2:1.7.0-2ubuntu0.1 Ubuntu 20.10: libx11-6 2:1.6.12-1ubuntu0.1 Ubuntu 20.04 LTS: libx11-6 2:1.6.9-2ubuntu1.2 Ubuntu 18.04 LTS: libx11-6 2:1.6.4-3ubuntu0.4 After a standard system update you need to reboot your computer to make all the necessary changes. References: https://ubuntu.com/security/notices/USN-4966-1 CVE-2021-31535 Package Information: https://launchpad.net/ubuntu/+source/libx11/2:1.7.0-2ubun... https://launchpad.net/ubuntu/+source/libx11/2:1.6.12-1ubu... https://launchpad.net/ubuntu/+source/libx11/2:1.6.9-2ubun... https://launchpad.net/ubuntu/+source/libx11/2:1.6.4-3ubun... -- ubuntu-security-announce mailing list ubuntu-security-announce@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-security...