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=========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2024.2065 USN-6721-1: X.Org X Server vulnerabilities 5 April 2024 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: X.Org X Server Publisher: Ubuntu Operating System: Ubuntu Resolution: Patch/Upgrade CVE Names: CVE-2024-31080 CVE-2024-31081 CVE-2024-31082 CVE-2024-31083 Original Bulletin: https://ubuntu.com/security/notices/USN-6721-1 Comment: CVSS (Max): 7.8 CVE-2024-31083 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H) CVSS Source: Red Hat Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - --------------------------BEGIN INCLUDED TEXT-------------------- USN-6721-1: X.Org X Server vulnerabilities 4 April 2024 Several security issues were fixed in X.Org X Server, xwayland. Releases o Ubuntu 23.10 o Ubuntu 22.04 LTS o Ubuntu 20.04 LTS o Ubuntu 18.04 ESM o Ubuntu 16.04 ESM o Ubuntu 14.04 ESM Packages o xorg-server - X.Org X11 server o xwayland - X server for running X clients under Wayland Details It was discovered that X.Org X Server incorrectly handled certain data. An attacker could possibly use this issue to expose sensitive information. ( CVE-2024-31080 , CVE-2024-31081 , CVE-2024-31082 ) It was discovered that X.Org X Server incorrectly handled certain glyphs. An attacker could possibly use this issue to cause a crash or expose sensitive information. ( CVE-2024-31083 ) Update instructions The problem can be corrected by updating your system to the following package versions: Ubuntu 23.10 o xserver-xorg-core - 2:21.1.7-3ubuntu2.8 o xwayland - 2:23.2.0-1ubuntu0.5 Ubuntu 22.04 o xserver-xorg-core - 2:21.1.4-2ubuntu1.7~22.04.9 o xwayland - 2:22.1.1-1ubuntu0.12 Ubuntu 20.04 o xserver-xorg-core - 2:1.20.13-1ubuntu1~20.04.16 o xwayland - 2:1.20.13-1ubuntu1~20.04.16 Ubuntu 18.04 o xserver-xorg-core - 2:1.19.6-1ubuntu4.15+esm7 Available with Ubuntu Pro o xwayland - 2:1.19.6-1ubuntu4.15+esm7 Available with Ubuntu Pro Ubuntu 16.04 o xserver-xorg-core - 2:1.18.4-0ubuntu0.12+esm12 Available with Ubuntu Pro o xwayland - 2:1.18.4-0ubuntu0.12+esm12 Available with Ubuntu Pro Ubuntu 14.04 o xserver-xorg-core - 2:1.15.1-0ubuntu2.11+esm11 Available with Ubuntu Pro In general, a standard system update will make all the necessary changes. References o CVE-2024-31083 o CVE-2024-31082 o CVE-2024-31081 o CVE-2024-31080 - --------------------------END INCLUDED TEXT---------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AusCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: https://www.auscert.org.au/bulletins/ =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). On call after hours for member emergencies only. ===========================================================================