High severity7.1NVD Advisory· Published Aug 24, 2022· Updated Jun 17, 2026

CVE-2021-4204

Description

An out-of-bounds (OOB) memory access flaw was found in the Linux kernel's eBPF due to an Improper Input Validation. This flaw allows a local attacker with a special privilege to crash the system or leak internal information.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Debian/linux
cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
Linux/Kernel3 versions
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*+ 2 more
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*range: <5.8.0
- cpe:2.3:o:linux:linux_kernel:5.8.0:-:*:*:*:*:*:*
- (no CPE)
NetApp/H300s Firmware
cpe:2.3:o:netapp:h300s_firmware:-:*:*:*:*:*:*:*
NetApp/H410c Firmware
cpe:2.3:o:netapp:h410c_firmware:-:*:*:*:*:*:*:*
NetApp/H410s Firmware
cpe:2.3:o:netapp:h410s_firmware:-:*:*:*:*:*:*:*
NetApp/H500s Firmware
cpe:2.3:o:netapp:h500s_firmware:-:*:*:*:*:*:*:*
NetApp/H700s Firmware
cpe:2.3:o:netapp:h700s_firmware:-:*:*:*:*:*:*:*
Red Hat/Enterprise Linux Server
cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*
Linux kernel/eBPFdescription
osv-coords62 versions
pkg:rpm/opensuse/dtb-aarch64&distro=openSUSE%20Leap%2015.4 pkg:rpm/opensuse/dtb-aarch64&distro=openSUSE%20Leap%2015.5 pkg:rpm/opensuse/kernel-64kb&distro=openSUSE%20Leap%2015.4 pkg:rpm/opensuse/kernel-64kb&distro=openSUSE%20Leap%2015.5 pkg:rpm/opensuse/kernel-azure&distro=openSUSE%20Leap%2015.4 pkg:rpm/opensuse/kernel-debug&distro=openSUSE%20Leap%2015.4 pkg:rpm/opensuse/kernel-debug&distro=openSUSE%20Leap%2015.5 pkg:rpm/opensuse/kernel-default&distro=openSUSE%20Leap%2015.4 pkg:rpm/opensuse/kernel-default&distro=openSUSE%20Leap%2015.5 pkg:rpm/opensuse/kernel-default&distro=openSUSE%20Leap%20Micro%205.5 pkg:rpm/opensuse/kernel-default-base&distro=openSUSE%20Leap%2015.4 pkg:rpm/opensuse/kernel-default-base&distro=openSUSE%20Leap%2015.5 pkg:rpm/opensuse/kernel-default-base&distro=openSUSE%20Leap%20Micro%205.5 pkg:rpm/opensuse/kernel-docs&distro=openSUSE%20Leap%2015.4 pkg:rpm/opensuse/kernel-docs&distro=openSUSE%20Leap%2015.5 pkg:rpm/opensuse/kernel-kvmsmall&distro=openSUSE%20Leap%2015.4 pkg:rpm/opensuse/kernel-kvmsmall&distro=openSUSE%20Leap%2015.5 pkg:rpm/opensuse/kernel-obs-build&distro=openSUSE%20Leap%2015.4 pkg:rpm/opensuse/kernel-obs-build&distro=openSUSE%20Leap%2015.5 pkg:rpm/opensuse/kernel-obs-qa&distro=openSUSE%20Leap%2015.4 pkg:rpm/opensuse/kernel-obs-qa&distro=openSUSE%20Leap%2015.5 pkg:rpm/opensuse/kernel-source&distro=openSUSE%20Leap%2015.4 pkg:rpm/opensuse/kernel-source&distro=openSUSE%20Leap%2015.5 pkg:rpm/opensuse/kernel-source-azure&distro=openSUSE%20Leap%2015.4 pkg:rpm/opensuse/kernel-syms&distro=openSUSE%20Leap%2015.4 pkg:rpm/opensuse/kernel-syms&distro=openSUSE%20Leap%2015.5 pkg:rpm/opensuse/kernel-syms-azure&distro=openSUSE%20Leap%2015.4 pkg:rpm/opensuse/kernel-zfcpdump&distro=openSUSE%20Leap%2015.4 pkg:rpm/opensuse/kernel-zfcpdump&distro=openSUSE%20Leap%2015.5 pkg:rpm/suse/kernel-64kb&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP4 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%20SP4 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2015%20SP4 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%20SP4 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%20SP4 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%20SP4 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%20SP4 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%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%20SP4 pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP5 pkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP4 pkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP5 pkg:rpm/suse/kernel-livepatch-SLE15-SP4_Update_1&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP4 pkg:rpm/suse/kernel-livepatch-SLE15-SP5_Update_19&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP5 pkg:rpm/suse/kernel-obs-build&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP4 pkg:rpm/suse/kernel-obs-build&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP5 pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP4 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%20SP4 pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP5 pkg:rpm/suse/kernel-source-azure&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2015%20SP4 pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP4 pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP5 pkg:rpm/suse/kernel-syms-azure&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2015%20SP4 pkg:rpm/suse/kernel-zfcpdump&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP4 pkg:rpm/suse/kernel-zfcpdump&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP5
< 5.14.21-150400.24.11.1+ 61 more
- (no CPE)range: < 5.14.21-150400.24.11.1
- (no CPE)range: < 5.14.21-150500.55.80.1
- (no CPE)range: < 5.14.21-150400.24.11.1
- (no CPE)range: < 5.14.21-150500.55.80.2
- (no CPE)range: < 5.14.21-150400.14.7.1
- (no CPE)range: < 5.14.21-150400.24.11.1
- (no CPE)range: < 5.14.21-150500.55.80.2
- (no CPE)range: < 5.14.21-150400.24.11.1
- (no CPE)range: < 5.14.21-150500.55.80.2
- (no CPE)range: < 5.14.21-150500.55.80.2
- (no CPE)range: < 5.14.21-150400.24.11.1.150400.24.3.6
- (no CPE)range: < 5.14.21-150500.55.80.2.150500.6.35.6
- (no CPE)range: < 5.14.21-150500.55.80.2.150500.6.35.6
- (no CPE)range: < 5.14.21-150400.24.11.1
- (no CPE)range: < 5.14.21-150500.55.80.2
- (no CPE)range: < 5.14.21-150400.24.11.1
- (no CPE)range: < 5.14.21-150500.55.80.2
- (no CPE)range: < 5.14.21-150400.24.11.1
- (no CPE)range: < 5.14.21-150500.55.80.1
- (no CPE)range: < 5.14.21-150400.24.11.1
- (no CPE)range: < 5.14.21-150500.55.80.1
- (no CPE)range: < 5.14.21-150400.24.11.1
- (no CPE)range: < 5.14.21-150500.55.80.2
- (no CPE)range: < 5.14.21-150400.14.7.1
- (no CPE)range: < 5.14.21-150400.24.11.1
- (no CPE)range: < 5.14.21-150500.55.80.1
- (no CPE)range: < 5.14.21-150400.14.7.1
- (no CPE)range: < 5.14.21-150400.24.11.1
- (no CPE)range: < 5.14.21-150500.55.80.2
- (no CPE)range: < 5.14.21-150400.24.11.1
- (no CPE)range: < 5.14.21-150500.55.80.2
- (no CPE)range: < 5.14.21-150400.14.7.1
- (no CPE)range: < 5.14.21-150400.24.11.1
- (no CPE)range: < 5.14.21-150500.55.80.2
- (no CPE)range: < 5.14.21-150400.24.11.1
- (no CPE)range: < 5.14.21-150500.55.80.2
- (no CPE)range: < 5.14.21-150500.55.80.2
- (no CPE)range: < 5.14.21-150400.24.11.1
- (no CPE)range: < 5.14.21-150500.55.80.2
- (no CPE)range: < 5.14.21-150400.24.11.1
- (no CPE)range: < 5.14.21-150500.55.80.2
- (no CPE)range: < 5.14.21-150400.24.11.1
- (no CPE)range: < 5.14.21-150500.55.80.2
- (no CPE)range: < 5.14.21-150500.55.80.2.150500.6.35.6
- (no CPE)range: < 5.14.21-150400.24.11.1.150400.24.3.6
- (no CPE)range: < 5.14.21-150500.55.80.2.150500.6.35.6
- (no CPE)range: < 5.14.21-150400.24.11.1
- (no CPE)range: < 5.14.21-150500.55.80.2
- (no CPE)range: < 1-150400.9.5.3
- (no CPE)range: < 1-150500.11.3.2
- (no CPE)range: < 5.14.21-150400.24.11.1
- (no CPE)range: < 5.14.21-150500.55.80.1
- (no CPE)range: < 5.14.21-150400.24.11.1
- (no CPE)range: < 5.14.21-150500.55.80.2
- (no CPE)range: < 5.14.21-150400.24.11.1
- (no CPE)range: < 5.14.21-150500.55.80.2
- (no CPE)range: < 5.14.21-150400.14.7.1
- (no CPE)range: < 5.14.21-150400.24.11.1
- (no CPE)range: < 5.14.21-150500.55.80.1
- (no CPE)range: < 5.14.21-150400.14.7.1
- (no CPE)range: < 5.14.21-150400.24.11.1
- (no CPE)range: < 5.14.21-150500.55.80.2

Patches

Vulnerability mechanics

References

www.openwall.com/lists/oss-security/2022/01/11/4nvdMailing ListPatchThird Party Advisory
access.redhat.com/security/cve/CVE-2021-4204nvdMitigationThird Party Advisory
bugzilla.redhat.com/show_bug.cginvdIssue TrackingThird Party Advisory
security-tracker.debian.org/tracker/CVE-2021-4204nvdThird Party Advisory
security.netapp.com/advisory/ntap-20221228-0003/nvdThird Party Advisory

News mentions

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cvss	0.461
epss	0.001
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000