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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2018.3468 Kernel updated in SUSE 11 6 November 2018 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: kernel Publisher: SUSE Operating System: SUSE Impact/Access: Root Compromise -- Existing Account Access Privileged Data -- Existing Account Denial of Service -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2018-16276 CVE-2018-14633 CVE-2018-14617 CVE-2018-12896 Reference: ESB-2018.2955 ESB-2018.2914 ESB-2018.2831 Original Bulletin: https://www.suse.com/support/update/announcement/2018/suse-su-20183618-1/ - --------------------------BEGIN INCLUDED TEXT-------------------- SUSE Security Update: Security update for the Linux Kernel ______________________________________________________________________________ Announcement ID: SUSE-SU-2018:3618-1 Rating: important References: #1099922 #1102870 #1106095 #1107829 #1108227 #1109967 #1110247 #1113337 #905299 Cross-References: CVE-2018-12896 CVE-2018-14617 CVE-2018-14633 CVE-2018-16276 Affected Products: SUSE Linux Enterprise Server 11-SP3-LTSS SUSE Linux Enterprise Server 11-EXTRA SUSE Linux Enterprise Point of Sale 11-SP3 SUSE Linux Enterprise Debuginfo 11-SP3 ______________________________________________________________________________ An update that solves four vulnerabilities and has 5 fixes is now available. Description: The SUSE Linux Enterprise 11 SP3 LTSS kernel was updated to receive various security and bugfixes. The following security bugs were fixed: - CVE-2018-14633: A security flaw was found in the chap_server_compute_md5() function in the ISCSI target code in a way an authentication request from an ISCSI initiator is processed. An unauthenticated remote attacker can cause a stack buffer overflow and smash up to 17 bytes of the stack. The attack requires the iSCSI target to be enabled on the victim host. Depending on how the target's code was built (i.e. depending on a compiler, compile flags and hardware architecture) an attack may lead to a system crash and thus to a denial-of-service or possibly to a non-authorized access to data exported by an iSCSI target. Due to the nature of the flaw, privilege escalation cannot be fully ruled out, although we believe it is highly unlikely. (bnc#1107829). - CVE-2018-14617: There is a NULL pointer dereference and panic in hfsplus_lookup() in fs/hfsplus/dir.c when opening a file (that is purportedly a hard link) in an hfs+ filesystem that has malformed catalog data, and is mounted read-only without a metadata directory (bnc#1102870). - CVE-2018-16276: An issue was discovered in yurex_read in drivers/usb/misc/yurex.c where local attackers could use user access read/writes with incorrect bounds checking in the yurex USB driver to crash the kernel or potentially escalate privileges (bnc#1106095). - CVE-2018-12896: An Integer Overflow in kernel/time/posix-timers.c in the POSIX timer code is caused by the way the overrun accounting works. Depending on interval and expiry time values, the overrun can be larger than INT_MAX, but the accounting is int based. This basically made the accounting values, which are visible to user space via timer_getoverrun(2) and siginfo::si_overrun, random. For example, a local user can cause a denial of service (signed integer overflow) via crafted mmap, futex, timer_create, and timer_settime system calls (bnc#1099922). The following non-security bugs were fixed: - net: fix neighbours after MAC change (bnc#905299). - powerpc: Fix smp_mb__before_spinlock() (bsc#1110247). - x86/fpu: Do not do __thread_fpu_end() if use_eager_fpu() (bnc#1109967). - x86/fpu: fix signal handling with eager FPU switching (ia32) (bsc#1108227). - retpoline: Introduce start/end markers of indirect thunk (bsc#1113337). Special Instructions and Notes: Please reboot the system after installing this update. 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 11-SP3-LTSS: zypper in -t patch slessp3-kernel-source-13855=1 - SUSE Linux Enterprise Server 11-EXTRA: zypper in -t patch slexsp3-kernel-source-13855=1 - SUSE Linux Enterprise Point of Sale 11-SP3: zypper in -t patch sleposp3-kernel-source-13855=1 - SUSE Linux Enterprise Debuginfo 11-SP3: zypper in -t patch dbgsp3-kernel-source-13855=1 Package List: - SUSE Linux Enterprise Server 11-SP3-LTSS (i586 s390x x86_64): kernel-default-3.0.101-0.47.106.56.1 kernel-default-base-3.0.101-0.47.106.56.1 kernel-default-devel-3.0.101-0.47.106.56.1 kernel-source-3.0.101-0.47.106.56.1 kernel-syms-3.0.101-0.47.106.56.1 kernel-trace-3.0.101-0.47.106.56.1 kernel-trace-base-3.0.101-0.47.106.56.1 kernel-trace-devel-3.0.101-0.47.106.56.1 - SUSE Linux Enterprise Server 11-SP3-LTSS (i586 x86_64): kernel-ec2-3.0.101-0.47.106.56.1 kernel-ec2-base-3.0.101-0.47.106.56.1 kernel-ec2-devel-3.0.101-0.47.106.56.1 kernel-xen-3.0.101-0.47.106.56.1 kernel-xen-base-3.0.101-0.47.106.56.1 kernel-xen-devel-3.0.101-0.47.106.56.1 - SUSE Linux Enterprise Server 11-SP3-LTSS (x86_64): kernel-bigsmp-3.0.101-0.47.106.56.1 kernel-bigsmp-base-3.0.101-0.47.106.56.1 kernel-bigsmp-devel-3.0.101-0.47.106.56.1 - SUSE Linux Enterprise Server 11-SP3-LTSS (s390x): kernel-default-man-3.0.101-0.47.106.56.1 - SUSE Linux Enterprise Server 11-SP3-LTSS (i586): kernel-pae-3.0.101-0.47.106.56.1 kernel-pae-base-3.0.101-0.47.106.56.1 kernel-pae-devel-3.0.101-0.47.106.56.1 - SUSE Linux Enterprise Server 11-EXTRA (i586 ia64 ppc64 s390x x86_64): kernel-default-extra-3.0.101-0.47.106.56.1 - SUSE Linux Enterprise Server 11-EXTRA (i586 x86_64): kernel-xen-extra-3.0.101-0.47.106.56.1 - SUSE Linux Enterprise Server 11-EXTRA (x86_64): kernel-bigsmp-extra-3.0.101-0.47.106.56.1 kernel-trace-extra-3.0.101-0.47.106.56.1 - SUSE Linux Enterprise Server 11-EXTRA (ppc64): kernel-ppc64-extra-3.0.101-0.47.106.56.1 - SUSE Linux Enterprise Server 11-EXTRA (i586): kernel-pae-extra-3.0.101-0.47.106.56.1 - SUSE Linux Enterprise Point of Sale 11-SP3 (i586): kernel-default-3.0.101-0.47.106.56.1 kernel-default-base-3.0.101-0.47.106.56.1 kernel-default-devel-3.0.101-0.47.106.56.1 kernel-ec2-3.0.101-0.47.106.56.1 kernel-ec2-base-3.0.101-0.47.106.56.1 kernel-ec2-devel-3.0.101-0.47.106.56.1 kernel-pae-3.0.101-0.47.106.56.1 kernel-pae-base-3.0.101-0.47.106.56.1 kernel-pae-devel-3.0.101-0.47.106.56.1 kernel-source-3.0.101-0.47.106.56.1 kernel-syms-3.0.101-0.47.106.56.1 kernel-trace-3.0.101-0.47.106.56.1 kernel-trace-base-3.0.101-0.47.106.56.1 kernel-trace-devel-3.0.101-0.47.106.56.1 kernel-xen-3.0.101-0.47.106.56.1 kernel-xen-base-3.0.101-0.47.106.56.1 kernel-xen-devel-3.0.101-0.47.106.56.1 - SUSE Linux Enterprise Debuginfo 11-SP3 (i586 s390x x86_64): kernel-default-debuginfo-3.0.101-0.47.106.56.1 kernel-default-debugsource-3.0.101-0.47.106.56.1 kernel-trace-debuginfo-3.0.101-0.47.106.56.1 kernel-trace-debugsource-3.0.101-0.47.106.56.1 - SUSE Linux Enterprise Debuginfo 11-SP3 (i586 x86_64): kernel-ec2-debuginfo-3.0.101-0.47.106.56.1 kernel-ec2-debugsource-3.0.101-0.47.106.56.1 kernel-xen-debuginfo-3.0.101-0.47.106.56.1 kernel-xen-debugsource-3.0.101-0.47.106.56.1 - SUSE Linux Enterprise Debuginfo 11-SP3 (x86_64): kernel-bigsmp-debuginfo-3.0.101-0.47.106.56.1 kernel-bigsmp-debugsource-3.0.101-0.47.106.56.1 - SUSE Linux Enterprise Debuginfo 11-SP3 (i586): kernel-pae-debuginfo-3.0.101-0.47.106.56.1 kernel-pae-debugsource-3.0.101-0.47.106.56.1 References: https://www.suse.com/security/cve/CVE-2018-12896.html https://www.suse.com/security/cve/CVE-2018-14617.html https://www.suse.com/security/cve/CVE-2018-14633.html https://www.suse.com/security/cve/CVE-2018-16276.html https://bugzilla.suse.com/1099922 https://bugzilla.suse.com/1102870 https://bugzilla.suse.com/1106095 https://bugzilla.suse.com/1107829 https://bugzilla.suse.com/1108227 https://bugzilla.suse.com/1109967 https://bugzilla.suse.com/1110247 https://bugzilla.suse.com/1113337 https://bugzilla.suse.com/905299 - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. 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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). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBW+D0KmaOgq3Tt24GAQh4jw//ZN6TUOWhVAUHvwDtU6/qsMnsLATTB7hC eRyCS/3ygnxj1blynGH0c9TSWMWyh0jN5YHvnql1WOT9TyJB6nAZ9fhTLy5mogqL SnHGqcOIRXLnurOIhyz/NBnP9EXFBwNIS5q/qYTo0xaZTkTLAGLLq14RKVyOegxZ ixVdhe0v45FM0PqkjWyex9FIgVZlgFC4g3CSL9TxX/kKe5T6Vy4kBUqScB8jhtkd y0yR4HIebf83nQRWt2ozCsvPl3yEknboUV/5B4SBOazKcHsn+Ustd9fv096eEN9D Xo5K6rk3RtMMyzbf/fsLZRy0Bs+YCxzFXu9aYt4NKOJEKhu9N4EZebitmK+q8ak8 YN16ed0IlQBNPb6gyDJ30xC0mc/4pa1WP0mr61fTX6NwmIvpR71SRHwlu1WXu/MO bORNAEshE8EwBLfAN7atumOGvBKPTMesvXRaJ6EtIM1TyLSi/6hTaXqvTkiHTV0A +zZeqf1tJHvWQk4nD3pRhxdZSsMfAFYufPSGECejpTpytJq/CQfBDosfCSlQo8Ov 41f9ozTQbApKmmU1LG7jDy4HxkLTLXjGCfA/2pc7I6BJQWKKN04so9OYOA3CNxOe GnXYDbCI4nU6BGFrVi4vfl71dWjMvToVaMdv9eyQa7xylD4w6FEyvoZ+FXGZG5Al BqftXsIs7+Y= =RzAL -----END PGP SIGNATURE-----