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 kernel-rtUpgrade kernel | 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-toolsUpgrade perfUpgrade kernel-develUpgrade kernel-tools-libsUpgrade python-perfUpgrade kernel-debuginfo-common-x86_64Upgrade kernelUpgrade kernel-debug-develUpgrade kernel-headersUpgrade kernel-debuginfoUpgrade kernel-debug | Nov 6, 2018 | Jul 26, 2018 |
| Huawei Euleros 2_0_sp3 | — | Upgrade python-perfUpgrade kernel-debuginfo-common-x86_64Upgrade kernelUpgrade kernel-debuginfoUpgrade kernel-tools-libsUpgrade kernel-toolsUpgrade kernel-develUpgrade perfUpgrade kernel-headers | Dec 26, 2018 | Jul 26, 2018 |
| Oracle_linux | — | Upgrade kernelUpgrade kernel-uek | Aug 15, 2018 | Dec 15, 2017 |
| Redhat_linux | — | Upgrade kernel-rtUpgrade kernel | Oct 31, 2018 | Jul 26, 2018 |
| Suse | — | Upgrade kernel-obs-buildUpgrade kernel-docs-azureUpgrade kernel-devel-azureUpgrade kernel-docsUpgrade dpdk-thunderx-develUpgrade kernel-defaultUpgrade dpdk-develUpgrade kernel-azure-baseUpgrade kernel-default-extraUpgrade kernel-default-manUpgrade kernel-source-azure | Aug 8, 2018 | Jul 26, 2018 |
| Ubuntu | — | Upgrade linux-image-genericUpgrade linux-image-generic-lts-trustyUpgrade linux-image-3.13.0-155-generic-lpaeUpgrade linux-image-lowlatencyUpgrade linux-image-powerpc-smpUpgrade linux-image-3.13.0-155-powerpc64-embUpgrade linux-image-3.13.0-155-powerpc-e500mcUpgrade linux-image-3.13.0-155-powerpc-smpUpgrade linux-image-3.13.0-155-powerpc64-smpUpgrade linux-image-3.13.0-155-powerpc-e500Upgrade linux-image-powerpc64-embUpgrade linux-image-powerpc64-smpUpgrade linux-image-generic-lpae-lts-trustyUpgrade linux-image-3.13.0-155-genericUpgrade linux-image-3.13.0-155-lowlatencyUpgrade linux-image-powerpc-e500mcUpgrade linux-image-generic-lpaeUpgrade linux-image-powerpc-e500 | 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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