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).
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Centos_linux | — | Upgrade kernelUpgrade kernel-rt | Aug 28, 2019 | Jul 26, 2018 |
| Debian | — | Upgrade linux | Jul 30, 2024 | Jul 26, 2018 |
| F5 Big Ip | — | Update F5 BIG-IP to the latest version | Jun 17, 2026 | Dec 8, 2020 |
| Huawei Euleros 2_0_sp2 | — | Upgrade kernel-debuginfoUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-headersUpgrade kernel-debug-develUpgrade kernel-debugUpgrade kernelUpgrade kernel-tools-libsUpgrade kernel-develUpgrade perfUpgrade kernel-toolsUpgrade python-perf | Nov 6, 2018 | Jul 26, 2018 |
| Huawei Euleros 2_0_sp3 | — | Upgrade kernelUpgrade kernel-toolsUpgrade python-perfUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-debuginfoUpgrade kernel-develUpgrade kernel-tools-libsUpgrade perfUpgrade kernel-headers | Dec 26, 2018 | Jul 26, 2018 |
| Oracle_linux | — | Upgrade kernel-uekUpgrade kernel | Aug 15, 2018 | Dec 15, 2017 |
| Redhat_linux | — | Upgrade kernelUpgrade kernel-rt | Oct 31, 2018 | Jul 26, 2018 |
| Suse | — | Upgrade dpdk-thunderx-develUpgrade kernel-defaultUpgrade kernel-docs-azureUpgrade kernel-devel-azureUpgrade kernel-obs-buildUpgrade kernel-docsUpgrade kernel-azure-baseUpgrade kernel-default-extraUpgrade dpdk-develUpgrade kernel-default-manUpgrade kernel-source-azure | Aug 8, 2018 | Jul 26, 2018 |
| Ubuntu | — | Upgrade linux-image-3.13.0-155-generic-lpaeUpgrade linux-image-lowlatencyUpgrade linux-image-3.13.0-155-powerpc-e500mcUpgrade linux-image-generic-lts-trustyUpgrade linux-image-powerpc-smpUpgrade linux-image-3.13.0-155-powerpc64-embUpgrade linux-image-genericUpgrade linux-image-3.13.0-155-powerpc64-smpUpgrade linux-image-3.13.0-155-powerpc-smpUpgrade linux-image-generic-lpaeUpgrade linux-image-powerpc64-smpUpgrade linux-image-generic-lpae-lts-trustyUpgrade linux-image-3.13.0-155-powerpc-e500Upgrade linux-image-3.13.0-155-lowlatencyUpgrade linux-image-3.13.0-155-genericUpgrade linux-image-powerpc-e500Upgrade linux-image-powerpc-e500mcUpgrade linux-image-powerpc64-emb | Aug 21, 2018 | Jul 26, 2018 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Jan 20, 2025 | Jul 26, 2018 |
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