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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2022.0256 USN-5243-1: AIDE vulnerability 21 January 2022 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: AIDE Publisher: Ubuntu Operating System: Ubuntu Impact/Access: Root Compromise -- Existing Account Denial of Service -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2021-45417 Reference: ESB-2022.0251 Original Bulletin: https://ubuntu.com/security/notices/USN-5243-1 https://ubuntu.com/security/notices/USN-5243-2 Comment: This bulletin contains two (2) Ubuntu security advisories. - --------------------------BEGIN INCLUDED TEXT-------------------- USN-5243-1: AIDE vulnerability 20 January 2022 AIDE could be made to crash or run programs as an administrator if it opened a specially crafted file. Releases o Ubuntu 21.10 o Ubuntu 21.04 o Ubuntu 20.04 LTS o Ubuntu 18.04 LTS Packages o aide - Advanced Intrusion Detection Environment Details David Bouman discovered that AIDE incorrectly handled base64 operations. A local attacker could use this issue to cause AIDE to crash, resulting in a denial of service, or possibly execute arbitrary code. Update instructions The problem can be corrected by updating your system to the following package versions: Ubuntu 21.10 o aide - 0.17.3-4ubuntu0.1 Ubuntu 21.04 o aide - 0.17.3-1ubuntu0.1 Ubuntu 20.04 o aide - 0.16.1-1ubuntu0.1 Ubuntu 18.04 o aide - 0.16-3ubuntu0.1 In general, a standard system update will make all the necessary changes. References o CVE-2021-45417 Related notices o USN-5243-2 : aide-xen, aide, aide-common, aide-dynamic - ---------------------------------------------------------------------------------------------------- USN-5243-2: AIDE vulnerability 20 January 2022 AIDE could be made to crash or run programs as an administrator if it opened a specially crafted file. Releases o Ubuntu 16.04 ESM o Ubuntu 14.04 ESM Packages o aide - Advanced Intrusion Detection Environment - static binary Details USN-5243-1 fixed a vulnerability in aide. This update provides the corresponding update for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM. Original advisory details: David Bouman discovered that AIDE incorrectly handled base64 operations. A local attacker could use this issue to cause AIDE to crash, resulting in a denial of service, or possibly execute arbitrary code. Update instructions The problem can be corrected by updating your system to the following package versions: Ubuntu 16.04 o aide - 0.16~a2.git20130520-3ubuntu0.1~esm1 Available with UA Infra or UA Desktop Ubuntu 14.04 o aide - 0.16~a2.git20130520-2ubuntu0.1+esm1 Available with UA Infra or UA Desktop In general, a standard system update will make all the necessary changes. References o CVE-2021-45417 Related notices o USN-5243-1 : aide-xen, aide-common, aide-dynamic, aide - --------------------------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. 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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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