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CVE-2017-18344

Description

The timer_create syscall implementation in kernel/time/posix-timers.c in the Linux kernel before 4.14.8 doesnt 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).

Risk Information

Base Score
5.5
MODERATE
Vector
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
EPSS Score
Exploitation Probability
13.197

Associated Vulnerability

VulnerabilityOS Platform
Linux kernel (USN-3742-1) linux-image-3.13.0-155-generic_3.13.0-155.205_i386.debLinux
Linux kernel (USN-3742-1) linux-image-3.13.0-155-generic_3.13.0-155.205_amd64.debLinux
Linux kernel (USN-3742-1) linux-image-3.13.0-155-lowlatency_3.13.0-155.205_i386.debLinux
Linux kernel (USN-3742-1) linux-image-3.13.0-155-lowlatency_3.13.0-155.205_amd64.debLinux
(RHSA-2018:3459) kernel security, bug fix, and enhancement update kernel-3.10.0-862.20.2.el7.x86_64.rpmLinux
(RHSA-2018:3459) kernel security, bug fix, and enhancement update kernel-abi-whitelists-3.10.0-862.20.2.el7.noarch.rpmLinux
(RHSA-2018:3459) kernel security, bug fix, and enhancement update kernel-debug-3.10.0-862.20.2.el7.x86_64.rpmLinux
(RHSA-2018:3459) kernel security, bug fix, and enhancement update kernel-debug-devel-3.10.0-862.20.2.el7.x86_64.rpmLinux
(RHSA-2018:3459) kernel security, bug fix, and enhancement update kernel-devel-3.10.0-862.20.2.el7.x86_64.rpmLinux
(RHSA-2018:3459) kernel security, bug fix, and enhancement update kernel-doc-3.10.0-862.20.2.el7.noarch.rpmLinux
(RHSA-2018:3459) kernel security, bug fix, and enhancement update kernel-headers-3.10.0-862.20.2.el7.x86_64.rpmLinux
(RHSA-2018:3459) kernel security, bug fix, and enhancement update kernel-tools-3.10.0-862.20.2.el7.x86_64.rpmLinux
(RHSA-2018:3459) kernel security, bug fix, and enhancement update kernel-tools-libs-3.10.0-862.20.2.el7.x86_64.rpmLinux
(RHSA-2018:3459) kernel security, bug fix, and enhancement update kernel-tools-libs-devel-3.10.0-862.20.2.el7.x86_64.rpmLinux
(RHSA-2018:3459) kernel security, bug fix, and enhancement update perf-3.10.0-862.20.2.el7.x86_64.rpmLinux
(RHSA-2018:3459) kernel security, bug fix, and enhancement update python-perf-3.10.0-862.20.2.el7.x86_64.rpmLinux
(RHSA-2018:3540) kernel security, bug fix, and enhancement update kernel-abi-whitelists-3.10.0-693.43.1.el7.noarch.rpmLinux
(RHSA-2018:3540) kernel security, bug fix, and enhancement update kernel-doc-3.10.0-693.43.1.el7.noarch.rpmLinux
(RHSA-2018:3590) kernel security and bug fix update kernel-abi-whitelists-3.10.0-327.76.1.el7.noarch.rpmLinux
(RHSA-2018:3590) kernel security and bug fix update kernel-doc-3.10.0-327.76.1.el7.noarch.rpmLinux
(RHSA-2018:3591) kernel security and bug fix update kernel-abi-whitelists-3.10.0-514.61.1.el7.noarch.rpmLinux
(RHSA-2018:3591) kernel security and bug fix update kernel-doc-3.10.0-514.61.1.el7.noarch.rpmLinux
SUSE-SU-2018:2328-1(SUSE Linux Enterprise Server 12-SP3 ) dpdk-16.11.6-8.7.2.x86_64.rpmLinux
SUSE-SU-2018:2328-1(SUSE Linux Enterprise Server 12-SP3 ) dpdk-debuginfo-16.11.6-8.7.2.x86_64.rpmLinux
SUSE-SU-2018:2328-1(SUSE Linux Enterprise Server 12-SP3 ) dpdk-debugsource-16.11.6-8.7.2.x86_64.rpmLinux
SUSE-SU-2018:2328-1(SUSE Linux Enterprise Server 12-SP3 ) dpdk-kmp-default-16.11.6_k4.4.143_94.47-8.7.2.x86_64.rpmLinux
SUSE-SU-2018:2328-1(SUSE Linux Enterprise Server 12-SP3 ) dpdk-kmp-default-debuginfo-16.11.6_k4.4.143_94.47-8.7.2.x86_64.rpmLinux
SUSE-SU-2018:2328-1(SUSE Linux Enterprise Server 12-SP3 ) dpdk-tools-16.11.6-8.7.2.x86_64.rpmLinux
SUSE-SU-2018:2328-1(SUSE Linux Enterprise Server 12-SP3 ) lttng-modules-2.7.1-8.4.2.x86_64.rpmLinux
SUSE-SU-2018:2328-1(SUSE Linux Enterprise Server 12-SP3 ) lttng-modules-debugsource-2.7.1-8.4.2.x86_64.rpmLinux
SUSE-SU-2018:2328-1(SUSE Linux Enterprise Server 12-SP3 ) lttng-modules-kmp-default-2.7.1_k4.4.143_94.47-8.4.2.x86_64.rpmLinux
SUSE-SU-2018:2328-1(SUSE Linux Enterprise Server 12-SP3 ) lttng-modules-kmp-default-debuginfo-2.7.1_k4.4.143_94.47-8.4.2.x86_64.rpmLinux
Dtrace-modules-3.8.13-118.24.1.el6uek update (ELSA-2018-4211) dtrace-modules-3.8.13-118.24.1.el6uek-0.4.5-3.el6.x86_64.rpmLinux
Dtrace-modules-3.8.13-118.24.1.el7uek update (ELSA-2018-4211) dtrace-modules-3.8.13-118.24.1.el7uek-0.4.5-3.el7.x86_64.rpmLinux
Out-of-bounds Read Vulnerability (CVE-2017-18344)NCM

Patch Details

No records found

References

https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234