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 analysis not yet available
Plain-English explanation, risk summary, and remediation steps will appear here once AI analysis is complete.
No Fix Known
No patch has been released yet. Apply workarounds or mitigations where available.
| Vendor | Product | Versions | Fixed In |
|---|---|---|---|
| linux | linux_kernel | 4.14.8 | - |
| canonical | ubuntu_linux | - | - |
| canonical | ubuntu_linux | - |
Published
CVE disclosed publicly
Last Modified
Most recent update
Indexed to CVEInsight
Added to this platform
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
15
Affected Products
30
References
linux / linux_kernel
| - |
| redhat | mrg_realtime | - | - |
| redhat | enterprise_linux_desktop | - | - |
| redhat | enterprise_linux_server | - | - |
| redhat | enterprise_linux_server_aus | - | - |
| redhat | enterprise_linux_server_aus | - | - |
| redhat | enterprise_linux_server_aus | - | - |
| redhat | enterprise_linux_server_eus | - | - |
| redhat | enterprise_linux_server_eus | - | - |
| redhat | enterprise_linux_server_tus | - | - |
| redhat | enterprise_linux_server_tus | - | - |
| redhat | enterprise_linux_server_tus | - | - |
| redhat | enterprise_linux_workstation | - | - |
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Exploitability
Impact