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SUSE Linux 12: 2018:3776-1 Moderate: Openssh User Issues And Fixes

An update that solves two vulnerabilities and has three fixes is now available. . SUSE Security Update: Security update for openssh ______________________________________________________________________________ Announcement ID: SUSE-SU-2018:3776-1 Rating: moderate References: #1091396 #1105010 #1106163 #964336 #982273 Cross-References: CVE-2018-15473 CVE-2018-15919 Affected Products: SUSE Linux Enterprise Server 12-SP1-LTSS SUSE Linux Enterprise Server 12-LTSS ______________________________________________________________________________ An update that solves two vulnerabilities and has three fixes is now available. Description: This update for openssh fixes the following issues: Following security issues have been fixed: - CVE-2018-15919: Remotely observable behaviour in auth-gss2.c in OpenSSH could be used by remote attackers to detect existence of users on a target system when GSS2 is in use. OpenSSH developers do not want to treat such a username enumeration (or "oracle") as a vulnerability. (bsc#1106163) - CVE-2018-15473: OpenSSH was prone to a user existance oracle vulnerability due to not delaying bailout for an invalid authenticating user until after the packet containing the request has been fully parsed, related to auth2-gss.c, auth2-hostbased.c, and auth2-pubkey.c. (bsc#1105010) Also the following security related hardening change was done: - Remove arcfour,cast,blowfish from list of default ciphers. (bsc#982273) And the following non-security issues were fixed: - Stop leaking File descriptors (bsc#964336) - sftp-client.c returns wrong error code upon failure (bsc#1091396) Patch Instructions: To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". Alternatively you can run the command listed for your product: - SUSE Linux Enterprise Server12-SP1-LTSS: zypper in -t patch SUSE-SLE-SERVER-12-SP1-2018-2698=1 - SUSE Linux Enterprise Server 12-LTSS: zypper in -t patch SUSE-SLE-SERVER-12-2018-2698=1 Package List: - SUSE Linux Enterprise Server 12-SP1-LTSS (ppc64le s390x x86_64): openssh-6.6p1-54.18.1 openssh-askpass-gnome-6.6p1-54.18.1 openssh-askpass-gnome-debuginfo-6.6p1-54.18.1 openssh-debuginfo-6.6p1-54.18.1 openssh-debugsource-6.6p1-54.18.1 openssh-fips-6.6p1-54.18.1 openssh-helpers-6.6p1-54.18.1 openssh-helpers-debuginfo-6.6p1-54.18.1 - SUSE Linux Enterprise Server 12-LTSS (ppc64le s390x x86_64): openssh-6.6p1-54.18.1 openssh-askpass-gnome-6.6p1-54.18.1 openssh-askpass-gnome-debuginfo-6.6p1-54.18.1 openssh-debuginfo-6.6p1-54.18.1 openssh-debugsource-6.6p1-54.18.1 openssh-fips-6.6p1-54.18.1 openssh-helpers-6.6p1-54.18.1 openssh-helpers-debuginfo-6.6p1-54.18.1 References: https://www.suse.com/security/cve/CVE-2018-15473.html https://www.suse.com/security/cve/CVE-2018-15919.html https://bugzilla.suse.com/1091396 https://bugzilla.suse.com/1105010 https://bugzilla.suse.com/1106163 https://bugzilla.suse.com/964336 https://bugzilla.suse.com/982273 _______________________________________________ sle-security-updates mailing list This email address is being protected from spambots. You need JavaScript enabled to view it. http://lists.suse.com/mailman/listinfo/sle-security-updates . A recent OpenSSH update tackles various vulnerabilities such as user enumeration and introduces significant security improvements tailored for SUSE Linux environments.. SUSE Linux Enterprise, Openssh Security, Vulnerability Patch, User Enumeration, Security Update. . LinuxSecurity.com Team

Nov 16, 2018 SuSE