SUSE: 2018:3776-2 moderate: openssh
Summary
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 Server for SAP 12-SP1: zypper in -t patch SUSE-SLE-SAP-12-SP1-2019-1081=1 Package List: - SUSE Linux Enterprise Server for SAP 12-SP1 (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
#1091396 #1105010 #1106163 #964336 #982273
Cross- CVE-2018-15473 CVE-2018-15919
Affected Products:
SUSE Linux Enterprise Server for SAP 12-SP1
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