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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2019.0399.2 OpenSSH vulnerabilities 5 March 2019 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: openssh-client Publisher: Ubuntu Operating System: Ubuntu Impact/Access: Modify Arbitrary Files -- Remote with User Interaction Provide Misleading Information -- Remote with User Interaction Unauthorised Access -- Remote with User Interaction Resolution: Patch/Upgrade CVE Names: CVE-2019-6111 CVE-2019-6109 CVE-2018-20685 Reference: ESB-2019.0164.2 Original Bulletin: http://www.ubuntu.com/usn/usn-3885-1 http://www.ubuntu.com/usn/usn-3885-2 Comment: This bulletin contains two (2) Ubuntu security advisories. Revision History: March 5 2019: Added USN-3885-2 due to incomplete fix. February 8 2019: Initial Release - --------------------------BEGIN INCLUDED TEXT-------------------- ========================================================================== USN-3885-1: OpenSSH vulnerabilities 7 February 2019 openssh vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 18.10 Ubuntu 18.04 LTS Ubuntu 16.04 LTS Ubuntu 14.04 LTS Summary Several security issues were fixed in OpenSSH. Software Description openssh - secure shell (SSH) for secure access to remote machines Details Harry Sintonen discovered multiple issus in the OpenSSH scp utility. If a user or automated system were tricked into connecting to an untrusted server, a remote attacker could possibly use these issues to write to arbitrary files, change directory permissions, and spoof client output. Update instructions The problem can be corrected by updating your system to the following package versions: Ubuntu 18.10 openssh-client - 1:7.7p1-4ubuntu0.2 Ubuntu 18.04 LTS openssh-client - 1:7.6p1-4ubuntu0.2 Ubuntu 16.04 LTS openssh-client - 1:7.2p2-4ubuntu2.7 Ubuntu 14.04 LTS openssh-client - 1:6.6p1-2ubuntu2.12 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 CVE-2018-20685 CVE-2019-6109 CVE-2019-6111 ============================================================================== ========================================================================== : OpenSSH vulnerability 4 March 2019 openssh vulnerability ========================================================================== 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 o Ubuntu 14.04 LTS Summary One of the fixes in USN-3885-1 was incomplete. Software Description o openssh - secure shell (SSH) for secure access to remote machines Details USN-3885-1 fixed vulnerabilities in OpenSSH. It was discovered that the fix for CVE-2019-6111 turned out to be incomplete. This update fixes the problem. Original advisory details: Harry Sintonen discovered multiple issues in the OpenSSH scp utility. If a user or automated system were tricked into connecting to an untrusted server, a remote attacker could possibly use these issues to write to arbitrary files, change directory permissions, and spoof client output. Update instructions The problem can be corrected by updating your system to the following package versions: Ubuntu 18.10 openssh-client - 1:7.7p1-4ubuntu0.3 Ubuntu 18.04 LTS openssh-client - 1:7.6p1-4ubuntu0.3 Ubuntu 16.04 LTS openssh-client - 1:7.2p2-4ubuntu2.8 Ubuntu 14.04 LTS openssh-client - 1:6.6p1-2ubuntu2.13 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-3885-1 o CVE-2019-6111 - --------------------------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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