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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2019.3410.2 USN-4124: Exim vulnerability 17 September 2019 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: exim4 Publisher: Ubuntu Operating System: Ubuntu Impact/Access: Root Compromise -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2019-15846 Reference: ESB-2019.3398 ESB-2019.3394 Original Bulletin: https://usn.ubuntu.com/4124-1/ https://usn.ubuntu.com/4124-2/ Comment: This bulletin contains two (2) Ubuntu security advisories. Revision History: September 17 2019: Update released for 14.04 ESM too. September 9 2019: Initial Release - --------------------------BEGIN INCLUDED TEXT-------------------- USN-4124-1: Exim vulnerability 6 September 2019 exim4 vulnerability A security issue affects these releases of Ubuntu and its derivatives: o Ubuntu 19.04 o Ubuntu 18.04 LTS o Ubuntu 16.04 LTS Summary Exim could be made to run programs as an administrator if it received specially crafted network traffic. Software Description o exim4 - Exim is a mail transport agent Details It was discovered that Exim incorrectly handled certain decoding operations. A remote attacker could possibly use this issue to execute arbitrary commands. Update instructions The problem can be corrected by updating your system to the following package versions: Ubuntu 19.04 exim4-daemon-heavy - 4.92-4ubuntu1.3 exim4-daemon-light - 4.92-4ubuntu1.3 Ubuntu 18.04 LTS exim4-daemon-heavy - 4.90.1-1ubuntu1.4 exim4-daemon-light - 4.90.1-1ubuntu1.4 Ubuntu 16.04 LTS exim4-daemon-heavy - 4.86.2-2ubuntu2.5 exim4-daemon-light - 4.86.2-2ubuntu2.5 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-2019-15846 o LP: 1843041 - -------------------------------------------------------------------------------- USN-4124-2: Exim vulnerability 16 September 2019 exim4 vulnerability A security issue affects these releases of Ubuntu and its derivatives: o Ubuntu 14.04 ESM Summary Exim could be made to run programs as an administrator if it received specially crafted network traffic. Software Description o exim4 - Exim is a mail transport agent Details USN-4124-1 fixed a vulnerability in Exim. This update provides the corresponding update for Ubuntu 14.04 ESM. Original advisory details: It was discovered that Exim incorrectly handled certain decoding operations. A remote attacker could possibly use this issue to execute arbitrary commands. Update instructions The problem can be corrected by updating your system to the following package versions: Ubuntu 14.04 ESM exim4-daemon-heavy - 4.82-3ubuntu2.4+esm1 exim4-daemon-light - 4.82-3ubuntu2.4+esm1 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-4124-1 o CVE-2019-15846 - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. 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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. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIUAwUBXYBVBGaOgq3Tt24GAQiv1A/3dHbh7/OlFK2SNLt0wlF2xEx/+8AiLwFS PQpixahYB7tiCXD4+N6zzMpCQdUy3w0/iYgPVYrBhQVEeh5aiLumbzKz1qe9hYBA M0vISTsHTcu8dKYXvi+aGGsdhBxSaDga7BvndwflEjIotbjmQx3gPvbIUe6wuXVd AvRHQMDUTKMw7/6YM1NAVtkMb6jKnZRYphXzqJBixzRNyzTs2HRX0qFrLy5Bmkem Vb99iF02K6SwEkERnYiRTWKYNrEhrLumrkIdvPjQkvWtzTYtJVHrcZ5TPuB5fjSo JoOPxifporKnHcUV87kRuRMJOY9G/qiOO3OgswVr2Vp+5L9D39Ly4on4Ak6zAs6n vVEBWGTmczBgFDh7EQbsTuNhYGf3UgWhJFxVYxR5DQp2HU3jLMO+9qbY5YRlXAyr cry+N+0jCr/Jz+UU0e8m2UO85tzmNSW83+lq1RbnzSnDhvS4D39kXB1a0UxHQbsc JgJFrm/17d6cwUB7jelyEUs9GWrFksE9Z0Ck4QJNVwp6DyC6VdZAvBEYAjV8MOQQ HoL08oVBpASSb6ANbRW3zF/t8FA4hicnHsDbdR3eoihanzLkpEfrahkowypYRx+o YRTKzTO348Cr50pi7xa8MC/lSoaPvIX/gex9Tv/EqK/iOD6c3gwq1X4EwOq7nP5p c2BXVifuWg== =9rwe -----END PGP SIGNATURE-----