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CVE-2019-3901

Description

A race condition in perf_event_open() allows local attackers to leak sensitive data from setuid programs. As no relevant locks (in particular the cred_guard_mutex) are held during the ptrace_may_access() call, it is possible for the specified target task to perform an execve() syscall with setuid execution before perf_event_alloc() actually attaches to it, allowing an attacker to bypass the ptrace_may_access() check and the perf_event_exit_task(current) call that is performed in install_exec_creds() during privileged execve() calls. This issue affects kernel versions before 4.8.

Risk Information

Base Score
4.7
MODERATE
Vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
EPSS Score
Exploitation Probability
0.071

Associated Vulnerability

VulnerabilityOS Platform
(RHSA-2020:1016) kernel security, bug fix, and enhancement update bpftool-3.10.0-1127.el7.x86_64.rpmLinux
(RHSA-2020:1016) kernel security, bug fix, and enhancement update kernel-3.10.0-1127.el7.x86_64.rpmLinux
(RHSA-2020:1016) kernel security, bug fix, and enhancement update kernel-abi-whitelists-3.10.0-1127.el7.noarch.rpmLinux
(RHSA-2020:1016) kernel security, bug fix, and enhancement update kernel-debug-3.10.0-1127.el7.x86_64.rpmLinux
(RHSA-2020:1016) kernel security, bug fix, and enhancement update kernel-debug-devel-3.10.0-1127.el7.x86_64.rpmLinux
(RHSA-2020:1016) kernel security, bug fix, and enhancement update kernel-devel-3.10.0-1127.el7.x86_64.rpmLinux
(RHSA-2020:1016) kernel security, bug fix, and enhancement update kernel-doc-3.10.0-1127.el7.noarch.rpmLinux
(RHSA-2020:1016) kernel security, bug fix, and enhancement update kernel-headers-3.10.0-1127.el7.x86_64.rpmLinux
(RHSA-2020:1016) kernel security, bug fix, and enhancement update kernel-tools-3.10.0-1127.el7.x86_64.rpmLinux
(RHSA-2020:1016) kernel security, bug fix, and enhancement update kernel-tools-libs-3.10.0-1127.el7.x86_64.rpmLinux
(RHSA-2020:1016) kernel security, bug fix, and enhancement update kernel-tools-libs-devel-3.10.0-1127.el7.x86_64.rpmLinux
(RHSA-2020:1016) kernel security, bug fix, and enhancement update perf-3.10.0-1127.el7.x86_64.rpmLinux
(RHSA-2020:1016) kernel security, bug fix, and enhancement update python-perf-3.10.0-1127.el7.x86_64.rpmLinux
(CESA-2020:1016) kernel security, bug fix, and enhancement update bpftool-3.10.0-1127.el7.x86_64.rpmLinux
(CESA-2020:1016) kernel security, bug fix, and enhancement update kernel-3.10.0-1127.el7.x86_64.rpmLinux
(CESA-2020:1016) kernel security, bug fix, and enhancement update kernel-debug-3.10.0-1127.el7.x86_64.rpmLinux
(CESA-2020:1016) kernel security, bug fix, and enhancement update kernel-debug-devel-3.10.0-1127.el7.x86_64.rpmLinux
(CESA-2020:1016) kernel security, bug fix, and enhancement update kernel-devel-3.10.0-1127.el7.x86_64.rpmLinux
(CESA-2020:1016) kernel security, bug fix, and enhancement update kernel-headers-3.10.0-1127.el7.x86_64.rpmLinux
(CESA-2020:1016) kernel security, bug fix, and enhancement update kernel-tools-3.10.0-1127.el7.x86_64.rpmLinux
(CESA-2020:1016) kernel security, bug fix, and enhancement update kernel-tools-libs-3.10.0-1127.el7.x86_64.rpmLinux
(CESA-2020:1016) kernel security, bug fix, and enhancement update kernel-tools-libs-devel-3.10.0-1127.el7.x86_64.rpmLinux
(CESA-2020:1016) kernel security, bug fix, and enhancement update perf-3.10.0-1127.el7.x86_64.rpmLinux
(CESA-2020:1016) kernel security, bug fix, and enhancement update python-perf-3.10.0-1127.el7.x86_64.rpmLinux
Kernel-uek update (ELSA-2021-9473) kernel-uek-4.1.12-124.56.1.el7uek.x86_64.rpmLinux
Kernel-uek-debug update (ELSA-2021-9473) kernel-uek-debug-4.1.12-124.56.1.el7uek.x86_64.rpmLinux
Kernel-uek-debug-devel update (ELSA-2021-9473) kernel-uek-debug-devel-4.1.12-124.56.1.el7uek.x86_64.rpmLinux
Kernel-uek-devel update (ELSA-2021-9473) kernel-uek-devel-4.1.12-124.56.1.el7uek.x86_64.rpmLinux
Kernel-uek-doc update (ELSA-2021-9473) kernel-uek-doc-4.1.12-124.56.1.el7uek.noarch.rpmLinux
Kernel-uek-firmware update (ELSA-2021-9473) kernel-uek-firmware-4.1.12-124.56.1.el7uek.noarch.rpmLinux
CVE-2019-3901NCM

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