14 May 2020
Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2019.0860.2 USN-3911-1: file vulnerabilities 14 May 2020 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: file Publisher: Ubuntu Operating System: Ubuntu Impact/Access: Execute Arbitrary Code/Commands -- Remote with User Interaction Denial of Service -- Remote with User Interaction Resolution: Patch/Upgrade CVE Names: CVE-2019-8907 CVE-2019-8906 CVE-2019-8905 CVE-2019-8904 Reference: ESB-2019.0738 ESB-2019.0626 Original Bulletin: https://usn.ubuntu.com/3911-1/ https://usn.ubuntu.com/3911-2/ Comment: This bulletin contains two (2) Ubuntu security advisories. Revision History: May 14 2020: Vendor released update advising to a file regression March 19 2019: Initial Release - --------------------------BEGIN INCLUDED TEXT-------------------- USN-3911-1: file vulnerabilities 18 March 2019 file vulnerabilities A security issue affects these releases of Ubuntu and its derivatives: o Ubuntu 18.10 o Ubuntu 18.04 LTS o Ubuntu 16.04 LTS Summary Several security issues were fixed in file. Software Description o file - Tool to determine file types Details It was discovered that file incorrectly handled certain malformed ELF files. An attacker could use this issue to cause 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 18.10 file - 1:5.34-2ubuntu0.1 libmagic1 - 1:5.34-2ubuntu0.1 Ubuntu 18.04 LTS file - 1:5.32-2ubuntu0.2 libmagic1 - 1:5.32-2ubuntu0.2 Ubuntu 16.04 LTS file - 1:5.25-2ubuntu1.2 libmagic1 - 1:5.25-2ubuntu1.2 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-2019-8904 o CVE-2019-8905 o CVE-2019-8906 o CVE-2019-8907 - ------------------------------------------------------------------------------ USN-3911-2: file regression 13 May 2020 file regression A security issue affects these releases of Ubuntu and its derivatives: o Ubuntu 18.04 LTS o Ubuntu 16.04 LTS Summary USN-3911-1 introduced a regression in file. Software Description o file - Tool to determine file types Details USN-3911-1 fixed vulnerabilities in file. One of the backported security fixes introduced a regression that caused the interpreter string to be truncated. This update fixes the problem. We apologize for the inconvenience. Original advisory details: It was discovered that file incorrectly handled certain malformed ELF files. An attacker could use this issue to cause 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 18.04 LTS file - 1:5.32-2ubuntu0.4 libmagic1 - 1:5.32-2ubuntu0.4 Ubuntu 16.04 LTS file - 1:5.25-2ubuntu1.4 libmagic1 - 1:5.25-2ubuntu1.4 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-3911-1 o LP: 1835596 - --------------------------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 email@example.com 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. 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