openSUSE Security Update: Security update for openssh ______________________________________________________________________________ Announcement ID: openSUSE-SU-2017:0344-1 Rating: moderate References: #1005480 #1005893 #1006221 #1016366 #1016368 #1016369 #1016370 #1021626 Cross-References: CVE-2016-10009 CVE-2016-10010 CVE-2016-10011 CVE-2016-10012 CVE-2016-8858 Affected Products: openSUSE Leap 42.2 ______________________________________________________________________________ An update that solves 5 vulnerabilities and has three fixes is now available. Description: This update for openssh fixes several issues. These security issues were fixed: - CVE-2016-8858: The kex_input_kexinit function in kex.c allowed remote attackers to cause a denial of service (memory consumption) by sending many duplicate KEXINIT requests (bsc#1005480). - CVE-2016-10012: The shared memory manager (associated with pre-authentication compression) did not ensure that a bounds check is enforced by all compilers, which might allowed local users to gain privileges by leveraging access to a sandboxed privilege-separation process, related to the m_zback and m_zlib data structures (bsc#1016370). - CVE-2016-10009: Untrusted search path vulnerability in ssh-agent.c allowed remote attackers to execute arbitrary local PKCS#11 modules by leveraging control over a forwarded agent-socket (bsc#1016366). - CVE-2016-10010: When forwarding unix domain sockets with privilege separation disabled, the resulting sockets have be created as 'root' instead of the authenticated user. Forwarding unix domain sockets without privilege separation enabled is now rejected. - CVE-2016-10011: authfile.c in sshd did not properly consider the effects of realloc on buffer contents, which might allowed local users to obtain sensitive private-key information by leveraging access to a privilege-separated child process (bsc#1016369). These non-security issues were fixed: - Adjusted suggested command for removing conflicting server keys from the known_hosts file (bsc#1006221) - Properly verify CIDR masks in configuration (bsc#1005893 bsc#1021626) This update was imported from the SUSE:SLE-12-SP2:Update update project. Patch Instructions: To install this openSUSE Security Update use YaST online_update. Alternatively you can run the command listed for your product: - openSUSE Leap 42.2: zypper in -t patch openSUSE-2017-184=1 To bring your system up-to-date, use "zypper patch". Package List: - openSUSE Leap 42.2 (i586 x86_64): openssh-7.2p2-9.1 openssh-askpass-gnome-7.2p2-9.1 openssh-askpass-gnome-debuginfo-7.2p2-9.1 openssh-cavs-7.2p2-9.1 openssh-debuginfo-7.2p2-9.1 openssh-debugsource-7.2p2-9.1 openssh-fips-7.2p2-9.1 openssh-helpers-7.2p2-9.1 openssh-helpers-debuginfo-7.2p2-9.1 References: https://www.suse.com/security/cve/CVE-2016-10009.html https://www.suse.com/security/cve/CVE-2016-10010.html https://www.suse.com/security/cve/CVE-2016-10011.html https://www.suse.com/security/cve/CVE-2016-10012.html https://www.suse.com/security/cve/CVE-2016-8858.html https://bugzilla.suse.com/1005480 https://bugzilla.suse.com/1005893 https://bugzilla.suse.com/1006221 https://bugzilla.suse.com/1016366 https://bugzilla.suse.com/1016368 https://bugzilla.suse.com/1016369 https://bugzilla.suse.com/1016370 https://bugzilla.suse.com/1021626