16 September 2021
Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2021.3120 USN-5078-2: Squashfs-Tools vulnerabilities 16 September 2021 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Squashfs-Tools Publisher: Ubuntu Operating System: Ubuntu Impact/Access: Overwrite Arbitrary Files -- Remote with User Interaction Resolution: Patch/Upgrade CVE Names: CVE-2021-41072 CVE-2021-40153 Reference: ESB-2021.3111 ESB-2021.2994 Original Bulletin: https://ubuntu.com/security/notices/USN-5078-2 - --------------------------BEGIN INCLUDED TEXT-------------------- USN-5078-2: Squashfs-Tools vulnerabilities 15 September 2021 Squashfs-Tools could be made to overwrite files. Releases o Ubuntu 16.04 ESM Packages o squashfs-tools - Tools to create and modify squashfs filesystems Details USN-5078-1 fixed several vulnerabilities in Squashfs-Tools. This update provides the corresponding update for Ubuntu 16.04 ESM. Original advisory details: Etienne Stalmans discovered that Squashfs-Tools mishandled certain malformed SQUASHFS files. An attacker could use this vulnerability to write arbitrary files to the filesystem. ( CVE-2021-40153 ) Richard Weinberger discovered that Squashfs-Tools mishandled certain malformed SQUASHFS files. An attacker could use this vulnerability to write arbitrary files to the filesystem. ( CVE-2021-41072 ) Update instructions The problem can be corrected by updating your system to the following package versions: Ubuntu 16.04 o squashfs-tools - 1:4.3-3ubuntu2.16.04.3+esm1 Available with UA Infra or UA Desktop In general, a standard system update will make all the necessary changes. References o CVE-2021-40153 o CVE-2021-41072 Related notices o USN-5078-1 : squashfs-tools o USN-5057-1 : squashfs-tools - --------------------------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 firstname.lastname@example.org 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: email@example.com 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 iQIVAwUBYUKIR+NLKJtyKPYoAQil4A//ewl3MUb11MwO0J5kWHhPCtLigkvSMDLk q8Ty7FJIj+NUNOIllLWwHIy6oVkdgAW/y8lfVrmpDdqD88RPodN77uVyognD5JQw Y3OZowRHnEreLv9gXuIAmSlGmM6regG3jmZany/0T4hABg6+l2Y+tCX5fpuPyTZZ ye8P0+leAIZgV/6ywDoyysXfG1g5OoElFbbhU6rEZQupmckvQmFpDo3TEl3D6BIW glB3fWyFwXaeVTme3OtF0jDvSkT9j6Ja2NUR0avjoC/UZfFZ3dUfK+T1a4b2XLUH en4w+aVjmRHdCS7nL3VEqJeF1k0iaoVh170YygeWgt8EWFD1B+qJTVu4h8+m/Hji vr6CN9RyrczUR0vaECP6mG1GrI/Uocu5iIOyw7wkWE4aCQa7yKgNusRbRtK/EuVD /cj6C8ZLbj6B8EW80sxrb7HrNLWFY9OiXEsXlrPivYkWZ1yAjKLN3aCoRs2B/dUu 7gm96COQCqw06gCwr3TBcwmh0xiVwlMFg92L1LVXMHhOh4ZVgbugG7LleJjLEQYN CNq9J8ioAJU8LPxBn6Xtn2MpjnnVS/aNa5UZxnfKa72uMh9mJjh4YS3n3BQtIa1Z +gBFiySEdQyMa2KUeHCq1KPvkX7kefs0QcRhWroMGKbceQWsEYHEqDVedsoi7tyj XP+LUiuG8rA= =CcXz -----END PGP SIGNATURE-----