Medium severity5.5NVD Advisory· Published Jul 26, 2018· Updated Jun 17, 2026
CVE-2017-18344
CVE-2017-18344
Description
The timer_create syscall implementation in kernel/time/posix-timers.c in the Linux kernel before 4.14.8 doesn'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 allows userspace applications to read arbitrary kernel memory (on a kernel built with CONFIG_POSIX_TIMERS and CONFIG_CHECKPOINT_RESTORE).
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
105- osv-coords104 versionspkg:rpm/suse/dpdk&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3pkg:rpm/suse/dpdk&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3pkg:rpm/suse/dpdk&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP3pkg:rpm/suse/dpdk-thunderx&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3pkg:rpm/suse/dpdk-thunderx&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3pkg:rpm/suse/dpdk-thunderx&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP3pkg:rpm/suse/kernel-azure&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2015pkg:rpm/suse/kernel-azure&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3pkg:rpm/suse/kernel-azure&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3pkg:rpm/suse/kernel-default&distro=SUSE%20Enterprise%20Storage%204pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP3pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2012%20SP2pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2012%20SP3pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2015pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Legacy%2015pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4%20LTSS%20EXTREME%20COREpkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-BCLpkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-LTSSpkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2012%20SP3pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2015pkg:rpm/suse/kernel-default&distro=SUSE%20OpenStack%20Cloud%207pkg:rpm/suse/kernel-docs-azure&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP3pkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015pkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP3pkg:rpm/suse/kernel-ec2&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4%20LTSS%20EXTREME%20COREpkg:rpm/suse/kernel-livepatch-SLE15_Update_0&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015pkg:rpm/suse/kernel-livepatch-SLE15_Update_1&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015pkg:rpm/suse/kernel-livepatch-SLE15_Update_2&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015pkg:rpm/suse/kernel-obs-build&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015pkg:rpm/suse/kernel-obs-build&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP3pkg:rpm/suse/kernel-rt_debug&distro=SUSE%20Linux%20Enterprise%20Real%20Time%2012%20SP3pkg:rpm/suse/kernel-rt&distro=SUSE%20Linux%20Enterprise%20Real%20Time%2012%20SP3pkg:rpm/suse/kernel-source-azure&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2015pkg:rpm/suse/kernel-source-azure&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3pkg:rpm/suse/kernel-source-azure&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3pkg:rpm/suse/kernel-source&distro=SUSE%20Enterprise%20Storage%204pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP3pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4%20LTSS%20EXTREME%20COREpkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-BCLpkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-LTSSpkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3pkg:rpm/suse/kernel-source&distro=SUSE%20OpenStack%20Cloud%207pkg:rpm/suse/kernel-source-rt&distro=SUSE%20Linux%20Enterprise%20Real%20Time%2012%20SP3pkg:rpm/suse/kernel-syms-azure&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2015pkg:rpm/suse/kernel-syms&distro=SUSE%20Enterprise%20Storage%204pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP3pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4%20LTSS%20EXTREME%20COREpkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-BCLpkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-LTSSpkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3pkg:rpm/suse/kernel-syms&distro=SUSE%20OpenStack%20Cloud%207pkg:rpm/suse/kernel-syms-rt&distro=SUSE%20Linux%20Enterprise%20Real%20Time%2012%20SP3pkg:rpm/suse/kernel-trace&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4%20LTSS%20EXTREME%20COREpkg:rpm/suse/kernel-vanilla&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015pkg:rpm/suse/kernel-xen&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4%20LTSS%20EXTREME%20COREpkg:rpm/suse/kernel-zfcpdump&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015pkg:rpm/suse/kgraft-patch-SLE12-SP2_Update_13&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-LTSSpkg:rpm/suse/kgraft-patch-SLE12-SP2_Update_13&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2pkg:rpm/suse/kgraft-patch-SLE12-SP2_Update_14&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-LTSSpkg:rpm/suse/kgraft-patch-SLE12-SP2_Update_14&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2pkg:rpm/suse/kgraft-patch-SLE12-SP2_Update_15&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-LTSSpkg:rpm/suse/kgraft-patch-SLE12-SP2_Update_15&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2pkg:rpm/suse/kgraft-patch-SLE12-SP2_Update_16&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-LTSSpkg:rpm/suse/kgraft-patch-SLE12-SP2_Update_16&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2pkg:rpm/suse/kgraft-patch-SLE12-SP2_Update_17&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-LTSSpkg:rpm/suse/kgraft-patch-SLE12-SP2_Update_17&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2pkg:rpm/suse/kgraft-patch-SLE12-SP2_Update_18&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-LTSSpkg:rpm/suse/kgraft-patch-SLE12-SP2_Update_18&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2pkg:rpm/suse/kgraft-patch-SLE12-SP2_Update_19&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-LTSSpkg:rpm/suse/kgraft-patch-SLE12-SP2_Update_19&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2pkg:rpm/suse/kgraft-patch-SLE12-SP2_Update_24&distro=SUSE%20Enterprise%20Storage%204pkg:rpm/suse/kgraft-patch-SLE12-SP2_Update_24&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-BCLpkg:rpm/suse/kgraft-patch-SLE12-SP2_Update_24&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-LTSSpkg:rpm/suse/kgraft-patch-SLE12-SP2_Update_24&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2pkg:rpm/suse/kgraft-patch-SLE12-SP2_Update_24&distro=SUSE%20OpenStack%20Cloud%207pkg:rpm/suse/kgraft-patch-SLE12-SP3_Update_16&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2012%20SP3pkg:rpm/suse/kgraft-patch-SLE12-SP3_Update_1&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2012%20SP3pkg:rpm/suse/kgraft-patch-SLE12-SP3_Update_2&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2012%20SP3pkg:rpm/suse/kgraft-patch-SLE12-SP3_Update_3&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2012%20SP3pkg:rpm/suse/kgraft-patch-SLE12-SP3_Update_4&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2012%20SP3pkg:rpm/suse/kgraft-patch-SLE12-SP3_Update_5&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2012%20SP3pkg:rpm/suse/kgraft-patch-SLE12-SP3_Update_6&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2012%20SP3pkg:rpm/suse/kgraft-patch-SLE12-SP3_Update_7&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2012%20SP3pkg:rpm/suse/kgraft-patch-SLE12-SP3_Update_8&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2012%20SP3pkg:rpm/suse/kgraft-patch-SLE12-SP3_Update_9&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2012%20SP3pkg:rpm/suse/lttng-modules&distro=SUSE%20Enterprise%20Storage%204pkg:rpm/suse/lttng-modules&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-BCLpkg:rpm/suse/lttng-modules&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-LTSSpkg:rpm/suse/lttng-modules&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3pkg:rpm/suse/lttng-modules&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2pkg:rpm/suse/lttng-modules&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3pkg:rpm/suse/lttng-modules&distro=SUSE%20OpenStack%20Cloud%207
< 16.11.6-8.7.2+ 103 more
- (no CPE)range: < 16.11.6-8.7.2
- (no CPE)range: < 16.11.6-8.7.2
- (no CPE)range: < 16.11.6-8.7.2
- (no CPE)range: < 16.11.6-8.7.2
- (no CPE)range: < 16.11.6-8.7.2
- (no CPE)range: < 16.11.6-8.7.2
- (no CPE)range: < 4.12.14-5.8.1
- (no CPE)range: < 4.4.143-4.13.1
- (no CPE)range: < 4.4.143-4.13.1
- (no CPE)range: < 4.4.121-92.92.1
- (no CPE)range: < 4.4.143-94.47.1
- (no CPE)range: < 4.4.121-92.92.1
- (no CPE)range: < 4.4.143-94.47.1
- (no CPE)range: < 4.12.14-25.6.1
- (no CPE)range: < 4.12.14-25.6.1
- (no CPE)range: < 4.12.14-25.6.1
- (no CPE)range: < 4.12.14-25.6.1
- (no CPE)range: < 3.0.101-108.144.1
- (no CPE)range: < 4.4.121-92.92.1
- (no CPE)range: < 4.4.121-92.92.1
- (no CPE)range: < 4.4.143-94.47.1
- (no CPE)range: < 4.4.121-92.92.1
- (no CPE)range: < 4.4.143-94.47.1
- (no CPE)range: < 4.4.143-94.47.1
- (no CPE)range: < 4.12.14-25.6.1
- (no CPE)range: < 4.4.121-92.92.1
- (no CPE)range: < 4.4.143-4.13.1
- (no CPE)range: < 4.12.14-25.6.1
- (no CPE)range: < 4.4.143-94.47.1
- (no CPE)range: < 3.0.101-108.144.1
- (no CPE)range: < 2-4.1
- (no CPE)range: < 2-2.1
- (no CPE)range: < 1-1.3.1
- (no CPE)range: < 4.12.14-25.6.1
- (no CPE)range: < 4.4.143-94.47.1
- (no CPE)range: < 4.4.147-3.20.1
- (no CPE)range: < 4.4.147-3.20.1
- (no CPE)range: < 4.12.14-5.8.1
- (no CPE)range: < 4.4.143-4.13.1
- (no CPE)range: < 4.4.143-4.13.1
- (no CPE)range: < 4.4.121-92.92.1
- (no CPE)range: < 4.4.143-94.47.1
- (no CPE)range: < 4.12.14-25.6.1
- (no CPE)range: < 4.12.14-25.6.1
- (no CPE)range: < 3.0.101-108.144.1
- (no CPE)range: < 4.4.121-92.92.1
- (no CPE)range: < 4.4.121-92.92.1
- (no CPE)range: < 4.4.143-94.47.1
- (no CPE)range: < 4.4.121-92.92.1
- (no CPE)range: < 4.4.143-94.47.1
- (no CPE)range: < 4.4.121-92.92.1
- (no CPE)range: < 4.4.147-3.20.1
- (no CPE)range: < 4.12.14-5.8.1
- (no CPE)range: < 4.4.121-92.92.1
- (no CPE)range: < 4.4.143-94.47.1
- (no CPE)range: < 4.12.14-25.6.1
- (no CPE)range: < 3.0.101-108.144.1
- (no CPE)range: < 4.4.121-92.92.1
- (no CPE)range: < 4.4.121-92.92.1
- (no CPE)range: < 4.4.143-94.47.1
- (no CPE)range: < 4.4.121-92.92.1
- (no CPE)range: < 4.4.143-94.47.1
- (no CPE)range: < 4.4.121-92.92.1
- (no CPE)range: < 4.4.147-3.20.1
- (no CPE)range: < 3.0.101-108.144.1
- (no CPE)range: < 4.12.14-25.6.1
- (no CPE)range: < 3.0.101-108.144.1
- (no CPE)range: < 4.12.14-25.6.1
- (no CPE)range: < 11-2.1
- (no CPE)range: < 11-2.1
- (no CPE)range: < 9-2.1
- (no CPE)range: < 9-2.1
- (no CPE)range: < 9-2.1
- (no CPE)range: < 9-2.1
- (no CPE)range: < 8-2.1
- (no CPE)range: < 8-2.1
- (no CPE)range: < 8-2.1
- (no CPE)range: < 8-2.1
- (no CPE)range: < 6-2.1
- (no CPE)range: < 6-2.1
- (no CPE)range: < 6-2.1
- (no CPE)range: < 6-2.1
- (no CPE)range: < 1-3.7.1
- (no CPE)range: < 1-3.7.1
- (no CPE)range: < 1-3.7.1
- (no CPE)range: < 1-3.7.1
- (no CPE)range: < 1-3.7.1
- (no CPE)range: < 1-4.5.1
- (no CPE)range: < 11-2.1
- (no CPE)range: < 10-2.1
- (no CPE)range: < 10-2.1
- (no CPE)range: < 9-2.1
- (no CPE)range: < 8-2.1
- (no CPE)range: < 8-2.1
- (no CPE)range: < 8-2.1
- (no CPE)range: < 6-2.1
- (no CPE)range: < 6-2.1
- (no CPE)range: < 2.7.1-9.4.1
- (no CPE)range: < 2.7.1-9.4.1
- (no CPE)range: < 2.7.1-9.4.1
- (no CPE)range: < 2.7.1-8.4.2
- (no CPE)range: < 2.7.1-9.4.1
- (no CPE)range: < 2.7.1-8.4.2
- (no CPE)range: < 2.7.1-9.4.1
Patches
Vulnerability mechanics
References
15- github.com/torvalds/linux/commit/cef31d9af908243421258f1df35a4a644604efbenvdPatchThird Party Advisory
- www.exploit-db.com/exploits/45175/nvdExploitThird Party AdvisoryVDB Entry
- www.securityfocus.com/bid/104909nvdThird Party AdvisoryVDB Entry
- www.securitytracker.com/id/1041414nvdThird Party AdvisoryVDB Entry
- access.redhat.com/errata/RHSA-2018:2948nvdThird Party Advisory
- access.redhat.com/errata/RHSA-2018:3083nvdThird Party Advisory
- access.redhat.com/errata/RHSA-2018:3096nvdThird Party Advisory
- access.redhat.com/errata/RHSA-2018:3459nvdThird Party Advisory
- access.redhat.com/errata/RHSA-2018:3540nvdThird Party Advisory
- access.redhat.com/errata/RHSA-2018:3586nvdThird Party Advisory
- access.redhat.com/errata/RHSA-2018:3590nvdThird Party Advisory
- access.redhat.com/errata/RHSA-2018:3591nvdThird Party Advisory
- cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.8nvdThird Party Advisory
- usn.ubuntu.com/3742-1/nvdThird Party Advisory
- usn.ubuntu.com/3742-2/nvdThird Party Advisory
News mentions
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