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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2020.1704.2 USN-4359-1: APT vulnerability 29 May 2020 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: apt Publisher: Ubuntu Operating System: Ubuntu Linux variants Impact/Access: Denial of Service -- Remote with User Interaction Resolution: Patch/Upgrade CVE Names: CVE-2020-3810 Original Bulletin: https://usn.ubuntu.com/4359-1/ https://usn.ubuntu.com/4359-2/ Comment: This bulletin contains two (2) Ubuntu security advisories. This advisory references vulnerabilities in products which run on platforms other than Ubuntu. It is recommended that administrators running apt check for an updated version of the software for their operating system. Revision History: May 29 2020: Vendor released USN-4359-2 to fix a regression in overlayfs May 14 2020: Initial Release - --------------------------BEGIN INCLUDED TEXT-------------------- USN-4359-1: APT vulnerability 14 May 2020 apt vulnerability A security issue affects these releases of Ubuntu and its derivatives: o Ubuntu 20.04 LTS o Ubuntu 19.10 o Ubuntu 18.04 LTS o Ubuntu 16.04 LTS Summary APT could be made to crash if it opened a specially crafted file. Software Description o apt - Advanced front-end for dpkg Details It was discovered that APT incorrectly handled certain filenames during package installation. If an attacker could provide a specially crafted package to be installed by the system administrator, this could cause APT to crash. Update instructions The problem can be corrected by updating your system to the following package versions: Ubuntu 20.04 LTS apt - 2.0.2ubuntu0.1 Ubuntu 19.10 apt - 1.9.4ubuntu0.1 Ubuntu 18.04 LTS apt - 1.6.12ubuntu0.1 Ubuntu 16.04 LTS apt - 1.2.32ubuntu0.1 To update your system, please follow these instructions: https:// wiki.ubuntu.com/Security/Upgrades . In general, a standard system update will make all the necessary changes. References o CVE-2020-3810 - -------------------------------------------------------------------------------- USN-4359-2: APT vulnerability 28 May 2020 apt vulnerability A security issue affects these releases of Ubuntu and its derivatives: o Ubuntu 14.04 ESM o Ubuntu 12.04 ESM Summary APT could be made to crash if it opened a specially crafted file. Software Description o apt - Advanced front-end for dpkg Details USN-4359-1 fixed a vulnerability in APT. This update provides the corresponding update for Ubuntu 12.04 ESM and 14.04 ESM. Original advisory details: It was discovered that APT incorrectly handled certain filenames during package installation. If an attacker could provide a specially crafted package to be installed by the system administrator, this could cause APT to crash. Update instructions The problem can be corrected by updating your system to the following package versions: Ubuntu 14.04 ESM apt - 1.0.1ubuntu2.24+esm1 Ubuntu 12.04 ESM apt - 0.8.16~exp12ubuntu10.29 To update your system, please follow these instructions: https:// wiki.ubuntu.com/Security/Upgrades . In general, a standard system update will make all the necessary changes. References o USN-4359-1 o CVE-2020-3810 - --------------------------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). 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