Unrated severityNVD Advisory· Published Oct 4, 2023· Updated Nov 6, 2025

Kernel: ebpf: insufficient stack type checks in dynptr

CVE-2023-39191

Description

An improper input validation flaw was found in the eBPF subsystem in the Linux kernel. The issue occurs due to a lack of proper validation of dynamic pointers within user-supplied eBPF programs prior to executing them. This may allow an attacker with CAP_BPF privileges to escalate privileges and execute arbitrary code in the context of the kernel.

Affected products

Red Hat/Enterprise Linuxcpe-rescue5 versions
cpe:/a:redhat:enterprise_linux:9::crb+ 4 more
- cpe:/a:redhat:enterprise_linux:9::crbrange: 0:5.14.0-362.8.1.el9_3
- cpe:/o:redhat:enterprise_linux:6
- cpe:/o:redhat:enterprise_linux:7
- cpe:/o:redhat:enterprise_linux:8
- cpe:/o:redhat:enterprise_linux:9
Red Hat/Red Hat Enterprise Linux 9.2 Extended Update Supportv52 versions
cpe:/a:redhat:rhel_eus:9.2::realtime+ 1 more
- cpe:/a:redhat:rhel_eus:9.2::realtimerange: 0:5.14.0-284.48.1.rt14.333.el9_2
- cpe:/o:redhat:rhel_eus:9.2::baseos
osv-coords50 versions
pkg:rpm/opensuse/dtb-aarch64&distro=openSUSE%20Leap%2015.5 pkg:rpm/opensuse/kernel-64kb&distro=openSUSE%20Leap%2015.5 pkg:rpm/opensuse/kernel-azure&distro=openSUSE%20Leap%2015.5 pkg:rpm/opensuse/kernel-debug&distro=openSUSE%20Leap%2015.5 pkg:rpm/opensuse/kernel-default-base&distro=openSUSE%20Leap%2015.5 pkg:rpm/opensuse/kernel-default&distro=openSUSE%20Leap%2015.5 pkg:rpm/opensuse/kernel-docs&distro=openSUSE%20Leap%2015.5 pkg:rpm/opensuse/kernel-kvmsmall&distro=openSUSE%20Leap%2015.5 pkg:rpm/opensuse/kernel-obs-build&distro=openSUSE%20Leap%2015.5 pkg:rpm/opensuse/kernel-obs-qa&distro=openSUSE%20Leap%2015.5 pkg:rpm/opensuse/kernel-rt_debug&distro=openSUSE%20Leap%2015.5 pkg:rpm/opensuse/kernel-rt&distro=openSUSE%20Leap%2015.5 pkg:rpm/opensuse/kernel-source-azure&distro=openSUSE%20Leap%2015.5 pkg:rpm/opensuse/kernel-source&distro=openSUSE%20Leap%2015.5 pkg:rpm/opensuse/kernel-source-rt&distro=openSUSE%20Leap%2015.5 pkg:rpm/opensuse/kernel-syms-azure&distro=openSUSE%20Leap%2015.5 pkg:rpm/opensuse/kernel-syms&distro=openSUSE%20Leap%2015.5 pkg:rpm/opensuse/kernel-syms-rt&distro=openSUSE%20Leap%2015.5 pkg:rpm/opensuse/kernel-zfcpdump&distro=openSUSE%20Leap%2015.5 pkg:rpm/suse/kernel-64kb&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP5 pkg:rpm/suse/kernel-azure&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2015%20SP5 pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Enterprise%20Micro%205.5 pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP5 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2015%20SP5 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP5 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Micro%205.5 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP5 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Legacy%2015%20SP5 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2015%20SP5 pkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP5 pkg:rpm/suse/kernel-livepatch-SLE15-SP5-RT_Update_0&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP5 pkg:rpm/suse/kernel-livepatch-SLE15-SP5-RT_Update_1&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP5 pkg:rpm/suse/kernel-livepatch-SLE15-SP5-RT_Update_5&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP5 pkg:rpm/suse/kernel-livepatch-SLE15-SP5-RT_Update_7&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP5 pkg:rpm/suse/kernel-livepatch-SLE15-SP5_Update_0&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP5 pkg:rpm/suse/kernel-livepatch-SLE15-SP5_Update_2&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP5 pkg:rpm/suse/kernel-livepatch-SLE15-SP5_Update_5&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP5 pkg:rpm/suse/kernel-livepatch-SLE15-SP5_Update_7&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP5 pkg:rpm/suse/kernel-obs-build&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP5 pkg:rpm/suse/kernel-rt_debug&distro=SUSE%20Real%20Time%20Module%2015%20SP5 pkg:rpm/suse/kernel-rt&distro=SUSE%20Linux%20Enterprise%20Micro%205.5 pkg:rpm/suse/kernel-rt&distro=SUSE%20Real%20Time%20Module%2015%20SP5 pkg:rpm/suse/kernel-source-azure&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2015%20SP5 pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP5 pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP5 pkg:rpm/suse/kernel-source-rt&distro=SUSE%20Real%20Time%20Module%2015%20SP5 pkg:rpm/suse/kernel-syms-azure&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2015%20SP5 pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP5 pkg:rpm/suse/kernel-syms-rt&distro=SUSE%20Real%20Time%20Module%2015%20SP5 pkg:rpm/suse/kernel-zfcpdump&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP5
< 5.14.21-150500.55.36.1+ 49 more
- (no CPE)range: < 5.14.21-150500.55.36.1
- (no CPE)range: < 5.14.21-150500.55.36.1
- (no CPE)range: < 5.14.21-150500.33.23.1
- (no CPE)range: < 5.14.21-150500.55.36.1
- (no CPE)range: < 5.14.21-150500.55.36.1.150500.6.15.3
- (no CPE)range: < 5.14.21-150500.55.36.1
- (no CPE)range: < 5.14.21-150500.55.36.1
- (no CPE)range: < 5.14.21-150500.55.36.1
- (no CPE)range: < 5.14.21-150500.55.36.1
- (no CPE)range: < 5.14.21-150500.55.36.1
- (no CPE)range: < 5.14.21-150500.13.24.1
- (no CPE)range: < 5.14.21-150500.13.24.1
- (no CPE)range: < 5.14.21-150500.33.23.1
- (no CPE)range: < 5.14.21-150500.55.36.1
- (no CPE)range: < 5.14.21-150500.13.24.1
- (no CPE)range: < 5.14.21-150500.33.23.1
- (no CPE)range: < 5.14.21-150500.55.36.1
- (no CPE)range: < 5.14.21-150500.13.24.1
- (no CPE)range: < 5.14.21-150500.55.36.1
- (no CPE)range: < 5.14.21-150500.55.36.1
- (no CPE)range: < 5.14.21-150500.33.23.1
- (no CPE)range: < 5.14.21-150500.55.36.1.150500.6.15.3
- (no CPE)range: < 5.14.21-150500.55.36.1.150500.6.15.3
- (no CPE)range: < 5.14.21-150500.55.36.1
- (no CPE)range: < 5.14.21-150500.55.36.1
- (no CPE)range: < 5.14.21-150500.55.36.1
- (no CPE)range: < 5.14.21-150500.55.36.1
- (no CPE)range: < 5.14.21-150500.55.36.1
- (no CPE)range: < 5.14.21-150500.55.36.1
- (no CPE)range: < 5.14.21-150500.55.36.1
- (no CPE)range: < 9-150500.6.2
- (no CPE)range: < 8-150500.2.2
- (no CPE)range: < 6-150500.2.2
- (no CPE)range: < 1-150500.11.3.1
- (no CPE)range: < 9-150500.6.2
- (no CPE)range: < 8-150500.2.3
- (no CPE)range: < 6-150500.2.3
- (no CPE)range: < 1-150500.11.5.1
- (no CPE)range: < 5.14.21-150500.55.36.1
- (no CPE)range: < 5.14.21-150500.13.24.1
- (no CPE)range: < 5.14.21-150500.13.24.1
- (no CPE)range: < 5.14.21-150500.13.24.1
- (no CPE)range: < 5.14.21-150500.33.23.1
- (no CPE)range: < 5.14.21-150500.55.36.1
- (no CPE)range: < 5.14.21-150500.55.36.1
- (no CPE)range: < 5.14.21-150500.13.24.1
- (no CPE)range: < 5.14.21-150500.33.23.1
- (no CPE)range: < 5.14.21-150500.55.36.1
- (no CPE)range: < 5.14.21-150500.13.24.1
- (no CPE)range: < 5.14.21-150500.55.36.1

Patches

No patches discovered yet.

Vulnerability mechanics

AI mechanics synthesis has not run for this CVE yet.

References

access.redhat.com/errata/RHSA-2023:6583mitrevendor-advisoryx_refsource_REDHAT
access.redhat.com/errata/RHSA-2024:0381mitrevendor-advisoryx_refsource_REDHAT
access.redhat.com/errata/RHSA-2024:0439mitrevendor-advisoryx_refsource_REDHAT
access.redhat.com/errata/RHSA-2024:0448mitrevendor-advisoryx_refsource_REDHAT
access.redhat.com/security/cve/CVE-2023-39191mitrevdb-entryx_refsource_REDHAT
bugzilla.redhat.com/show_bug.cgimitreissue-trackingx_refsource_REDHAT
www.zerodayinitiative.com/advisories/ZDI-CAN-19399/mitre

News mentions

No linked articles in our index yet.

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