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SUSE: 2018:2596-1 Important: Linux Kernel Security Fix - DoS Issues

suse
Calendar Grey September 3, 2018
Dist Suse Esm H88
Essential SUSE security patch addressing 15 vulnerabilities in the Linux kernel for robust system defense.
An update that solves 15 vulnerabilities and has 58 fixes is now available

Summary

The SUSE Linux Enterprise 12 SP3 RT kernel was updated to 4.4.147 to receive various security and bugfixes. The following security bugs were fixed: - CVE-2017-18344: The timer_create syscall implementation in kernel/time/posix-timers.c didn't properly validate the sigevent->sigev_notify field, which leads to out-of-bounds access in the show_timer function (called when /proc/$PID/timers is read). This allowed userspace applications to read arbitrary kernel memory (on a kernel built with CONFIG_POSIX_TIMERS and CONFIG_CHECKPOINT_RESTORE) (bnc#1102851 bsc#1103580). - CVE-2018-10876: A flaw was found in the ext4 filesystem code. A use-after-free was possible in ext4_ext_remove_space() function when mounting and operating a crafted ext4 image. (bnc#1099811)

Topics%20covered

Topics Covered

security advisory denial of service important SUSE linux kernel kernel fixes linux kernel update

References

#1012382 #1064232 #1065364 #1068032 #1076110

#1082653 #1082979 #1085042 #1085536 #1086457

#1087081 #1089343 #1090123 #1090435 #1091171

#1091860 #1092001 #1094244 #1095643 #1096254

#1096978 #1097771 #1098253 #1098599 #1099792

#1099811 #1099813 #1099844 #1099845 #1099846

#1099849 #1099858 #1099863 #1099864 #1100132

#1100843 #1100930 #1101296 #1101331 #1101658

#1101789 #1101822 #1101841 #1102188 #1102197

#1102203 #1102205 #1102207 #1102211 #1102214

#1102215 #1102340 #1102394 #1102683 #1102715

#1102797 #1102851 #1103097 #1103119 #1103269

#1103445 #1103580 #1103717 #1103745 #1103884

#1104174 #1104319 #1104365 #1104494 #1104495

#1104897 #1105292 #970506

Cross- CVE-2017-18344 CVE-2018-10876 CVE-2018-10877

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Read the Full Advisory

Severity
important
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Critical

Announcement ID: SUSE-SU-2018:2596-1
Rating: important

Topics%20covered

Topics Covered

security advisory denial of service important SUSE linux kernel kernel fixes linux kernel update

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