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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2016.0839 Moderate: libssh security update 4 April 2016 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: libssh Publisher: Red Hat Operating System: Red Hat Enterprise Linux Server 7 Red Hat Enterprise Linux WS/Desktop 7 Impact/Access: Reduced Security -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2016-0739 Reference: ESB-2016.0459 Original Bulletin: https://rhn.redhat.com/errata/RHSA-2016-0566.html - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Moderate: libssh security update Advisory ID: RHSA-2016:0566-01 Product: Red Hat Enterprise Linux Extras Advisory URL: https://rhn.redhat.com/errata/RHSA-2016-0566.html Issue date: 2016-03-31 CVE Names: CVE-2016-0739 ===================================================================== 1. Summary: An update for libssh is now available for Red Hat Enterprise Linux 7 Extras. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. 2. Relevant releases/architectures: Red Hat Enterprise Linux 7 Extras - x86_64 3. Description: libssh is a library which implements the SSH protocol. It can be used to implement client and server applications. Security Fix(es): * A type confusion issue was found in the way libssh generated ephemeral secrets for the diffie-hellman-group1 and diffie-hellman-group14 key exchange methods. This would cause an SSHv2 Diffie-Hellman handshake to use significantly less secure random parameters. (CVE-2016-0739) Red Hat would like to thank Aris Adamantiadis for reporting this issue. 4. Solution: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 After installing these updated packages, all running applications using libssh must be restarted for this update to take effect. 5. Bugs fixed (https://bugzilla.redhat.com/): 1305971 - CVE-2016-0739 libssh: bits/bytes confusion resulting in truncated Difffie-Hellman secret length 6. Package List: Red Hat Enterprise Linux 7 Extras: Source: libssh-0.7.1-2.el7.src.rpm x86_64: libssh-0.7.1-2.el7.x86_64.rpm libssh-debuginfo-0.7.1-2.el7.x86_64.rpm libssh-devel-0.7.1-2.el7.x86_64.rpm These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/ 7. References: https://access.redhat.com/security/cve/CVE-2016-0739 https://access.redhat.com/security/updates/classification/#moderate 8. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2016 Red Hat, Inc. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iD8DBQFW/hpBXlSAg2UNWIIRAl7kAJ9+tkwVgOdO0H8HzJOXfK3fkuQP/wCfTjHw ITqcXdwjt3h7seFx5vhHONs= =GUeP - -----END PGP SIGNATURE----- - --------------------------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. 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Previous advisories and external security bulletins can be retrieved from: http://www.auscert.org.au/render.html?cid=1980 =========================================================================== 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 iQIVAwUBVwH13n6ZAP0PgtI9AQKmjhAAzaPV7bYwUuZw+NLBZ2zFtt1xF4zQzUsE RrbYBhRF34lccwd4reIC6mohVt3VqhnNYll46vhCMQnp3ly64CAnYscXLy93PRZT Qj7SlDzZ1jNMZL36MKQhEaZMPjZ2Y4rqucH1oYA6AIkMTl87FLoJOsT69lafIgQA 7xSbSFUeDxO6P656Ua0vDRxSozKOH1hiQ65QnU1LTWP6TJX9m5qZgzfgY+Ks04HT 5KYPsJBO0xs+VWbFJfrTqGfZYyqiRoe+VbkE6kD/X9WG9Dekycgu2vom7J5/W+o8 4DGQsgzya8uGA4XgljveRGzQkoX+FLaKJ8PYLgODhqZ1kAZ9jAA7FoZmQQ/7Dx1t MS2KObt4Oyxs2W6LJEJCrF3o345kGbGfGWcw+lfRau5HWiqjJDSF9Ul2GLG0z9ag JyATkLwsjXUBmwMqjbGsnPBXJeOuF/EhKv2Y0w03kGehQ+j8XDUYmzO3i6wEJ5hN Pr9i41VkFJIZbAzS1pikqkjjFmuWMjQAq/VoFcxnlk0kniNX864IRCvIdPR17SXM 0+1Hd8AuAtH/Yw9YO9d25lBDqjckjud7LEgyBZTwixg0UpAbYPSuEIGPtfsRpPMv uolAebjume3H/PcOgTR4BFEEKncaA5X4CulXeiQMFT+AaCq35/SbyPw05GRB1P1V gL5ZXO4WnBA= =aJeG -----END PGP SIGNATURE-----