Skip to content
Fencer Vulns
high 7.8

CVE-2022-3239 json

A flaw use after free in the Linux kernel video4linux driver was found in the way user triggers em28xx_usb_probe() for the Empia 28xx based…

published 2022-09-19 4 y ago modified 2026-06-17 4 mo ago also EUVD-2022-42647

cvss
7.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 17%
public exploits
0
none known

Summary

A flaw use after free in the Linux kernel video4linux driver was found in the way user triggers em28xx_usb_probe() for the Empia 28xx based TV cards. A local user could use this flaw to crash the system or potentially escalate their privileges on the system.

Patch / fix

  • linux linux_kernel 4.14.295, 4.19.238, 5.4.189, 5.10.110, 5.15.33, 5.16.19, 5.17.2
  • linux Debian 14, Debian 13, Debian 12 5.17.3-1

debian advisories DEBIAN-CVE-2022-3239

  • linux Ubuntu 18.04 LTS 4.15.0-200.211
  • linux Ubuntu 20.04 LTS 5.4.0-117.132
  • linux Ubuntu 22.04 LTS 5.15.0-37.39
  • linux-aws Ubuntu 18.04 LTS 4.15.0-1146.158
  • linux-aws Ubuntu 20.04 LTS 5.4.0-1078.84
  • linux-aws Ubuntu 22.04 LTS 5.15.0-1011.14
  • linux-gcp Ubuntu 20.04 LTS 5.4.0-1078.84
  • linux-gcp Ubuntu 22.04 LTS 5.15.0-1008.12

ubuntu advisories UBUNTU-CVE-2022-3239

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • kernel RHEL 9 5.14.0-162.6.1.el9_1
  • perf RHEL 9 5.14.0-162.6.1.el9_1
  • bpftool RHEL 9 5.14.0-162.6.1.el9_1
  • kernel-core RHEL 9 5.14.0-162.6.1.el9_1
  • kernel-tools RHEL 9 5.14.0-162.6.1.el9_1
  • python3-perf RHEL 9 5.14.0-162.6.1.el9_1
  • kernel-modules RHEL 9 5.14.0-162.6.1.el9_1
  • kernel-zfcpdump RHEL 9 5.14.0-162.6.1.el9_1

red hat advisories RHSA-2022:8267RHSA-2022:7933RHSA-2024:0930RHSA-2023:2736RHSA-2023:2951

  • kernel-rt Real Time Module 15 SP4, openSUSE Leap 15.4 5.14.21-150400.15.5.1
  • kernel-syms-rt Real Time Module 15 SP4, openSUSE Leap 15.4 5.14.21-150400.15.5.1
  • kernel-rt_debug Real Time Module 15 SP4, openSUSE Leap 15.4 5.14.21-150400.15.5.1
  • kernel-source-rt Real Time Module 15 SP4, openSUSE Leap 15.4 5.14.21-150400.15.5.1
  • dtb-aarch64 openSUSE Leap 15.4 5.14.21-150400.24.28.1
  • kernel-64kb SLE Module for Basesystem 15 SP4, openSUSE Leap 15.4 5.14.21-150400.24.28.1
  • kernel-syms SLE Module for Development Tools 15 SP4, openSUSE Leap 15.4 5.14.21-150400.24.28.1
  • kernel-obs-qa openSUSE Leap 15.4 5.14.21-150400.24.28.1

suse advisories SUSE-SU-2022:4617-1SUSE-SU-2022:3844-1SUSE-SU-2022:3810-1SUSE-SU-2022:3809-1SUSE-SU-2022:3779-1SUSE-SU-2022:3775-1

  • kernel-rt AlmaLinux 8 4.18.0-477.10.1.rt7.274.el8_8
  • kernel-rt-kvm AlmaLinux 8 4.18.0-477.10.1.rt7.274.el8_8
  • kernel-rt-core AlmaLinux 8 4.18.0-477.10.1.rt7.274.el8_8
  • kernel-rt-modules AlmaLinux 8 4.18.0-477.10.1.rt7.274.el8_8
  • kernel-rt-debug-kvm AlmaLinux 8 4.18.0-477.10.1.rt7.274.el8_8
  • kernel-rt-debug-core AlmaLinux 8 4.18.0-477.10.1.rt7.274.el8_8
  • kernel-rt-debug-modules AlmaLinux 8 4.18.0-477.10.1.rt7.274.el8_8
  • kernel-rt-modules-extra AlmaLinux 8 4.18.0-477.10.1.rt7.274.el8_8

almalinux advisories ALSA-2023:2736ALSA-2023:2951

  • linux-lts Arch Linux 6.2-1
  • linux-hardened Arch Linux 6.2-1
  • linux-zen Arch Linux 6.2-1
  • linux Arch Linux 6.2-1

arch linux advisories AVG-2834AVG-2835AVG-2836AVG-2837

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2022-3239 updated cvss 7.0

kernel: media: em28xx: initialize refcount before kref_get

  • Red Hat CodeReady Linux Builder (v. 9) kernel-debuginfo-common-s390x 5.14.0-162.6.1.el9_1, kernel-debuginfo-common-x86_64 5.14.0-162.6.1.el9_1, kernel-debuginfo-common-aarch64 5.14.0-162.6.1.el9_1, kernel-debuginfo-common-ppc64le 5.14.0-162.6.1.el9_1
    fixed: vendor fix “To mitigate this issue, prevent module em28xx from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2022:8267
  • Red Hat CodeReady Linux Builder EUS (v.8.6) kernel-debuginfo-common-x86_64 4.18.0-372.93.1.el8_6, kernel-debuginfo-common-aarch64 4.18.0-372.93.1.el8_6, kernel-debuginfo-common-ppc64le 4.18.0-372.93.1.el8_6
    fixed: vendor fix “To mitigate this issue, prevent module em28xx from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2024:0930
  • Red Hat Enterprise Linux AppStream (v. 9) perf 5.14.0-162.6.1.el9_1, kernel-devel-matched 5.14.0-162.6.1.el9_1, kernel-debug-devel-matched 5.14.0-162.6.1.el9_1, kernel-debuginfo-common-s390x 5.14.0-162.6.1.el9_1, kernel-zfcpdump-devel-matched 5.14.0-162.6.1.el9_1, kernel-debuginfo-common-x86_64 5.14.0-162.6.1.el9_1, +2 more
    fixed: vendor fix “To mitigate this issue, prevent module em28xx from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2022:8267
  • Red Hat Enterprise Linux BaseOS (v. 8) perf 4.18.0-477.10.1.el8_8, kernel 4.18.0-477.10.1.el8_8, bpftool 4.18.0-477.10.1.el8_8, kernel-core 4.18.0-477.10.1.el8_8, kernel-tools 4.18.0-477.10.1.el8_8, python3-perf 4.18.0-477.10.1.el8_8, +15 more
    fixed: vendor fix “To mitigate this issue, prevent module em28xx from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2023:2951
  • Red Hat Enterprise Linux BaseOS (v. 9) kernel 5.14.0-162.6.1.el9_1, bpftool 5.14.0-162.6.1.el9_1, kernel-core 5.14.0-162.6.1.el9_1, kernel-tools 5.14.0-162.6.1.el9_1, python3-perf 5.14.0-162.6.1.el9_1, kernel-modules 5.14.0-162.6.1.el9_1, +14 more
    fixed: vendor fix “To mitigate this issue, prevent module em28xx from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2022:8267
  • Red Hat Enterprise Linux BaseOS EUS (v.8.6) perf 4.18.0-372.93.1.el8_6, kernel 4.18.0-372.93.1.el8_6, bpftool 4.18.0-372.93.1.el8_6, kernel-core 4.18.0-372.93.1.el8_6, kernel-tools 4.18.0-372.93.1.el8_6, python3-perf 4.18.0-372.93.1.el8_6, +15 more
    fixed: vendor fix “To mitigate this issue, prevent module em28xx from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2024:0930
  • Red Hat Enterprise Linux CRB (v. 8) kernel-debuginfo-common-x86_64 4.18.0-477.10.1.el8_8, kernel-debuginfo-common-aarch64 4.18.0-477.10.1.el8_8, kernel-debuginfo-common-ppc64le 4.18.0-477.10.1.el8_8
    fixed: vendor fix “To mitigate this issue, prevent module em28xx from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2023:2951
  • Red Hat Enterprise Linux NFV (v. 8) kernel-rt 4.18.0-477.10.1.rt7.274.el8_8, kernel-rt-kvm 4.18.0-477.10.1.rt7.274.el8_8, kernel-rt-core 4.18.0-477.10.1.rt7.274.el8_8, kernel-rt-modules 4.18.0-477.10.1.rt7.274.el8_8, kernel-rt-debug-kvm 4.18.0-477.10.1.rt7.274.el8_8, kernel-rt-debug-core 4.18.0-477.10.1.rt7.274.el8_8, +4 more
    fixed: vendor fix “To mitigate this issue, prevent module em28xx from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2023:2736
show 4 more
  • Red Hat Enterprise Linux Real Time (v. 9) kernel-rt 5.14.0-162.6.1.rt21.168.el9_1, kernel-rt-core 5.14.0-162.6.1.rt21.168.el9_1, kernel-rt-modules 5.14.0-162.6.1.rt21.168.el9_1, kernel-rt-debug-core 5.14.0-162.6.1.rt21.168.el9_1, kernel-rt-debug-modules 5.14.0-162.6.1.rt21.168.el9_1, kernel-rt-modules-extra 5.14.0-162.6.1.rt21.168.el9_1, +2 more Red Hat Enterprise Linux Real Time for NFV (v. 9) kernel-rt 5.14.0-162.6.1.rt21.168.el9_1, kernel-rt-kvm 5.14.0-162.6.1.rt21.168.el9_1, kernel-rt-core 5.14.0-162.6.1.rt21.168.el9_1, kernel-rt-modules 5.14.0-162.6.1.rt21.168.el9_1, kernel-rt-debug-kvm 5.14.0-162.6.1.rt21.168.el9_1, kernel-rt-debug-core 5.14.0-162.6.1.rt21.168.el9_1, +4 more
    fixed: vendor fix “To mitigate this issue, prevent module em28xx from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2022:7933
  • Red Hat Enterprise Linux RT (v. 8) kernel-rt 4.18.0-477.10.1.rt7.274.el8_8, kernel-rt-core 4.18.0-477.10.1.rt7.274.el8_8, kernel-rt-modules 4.18.0-477.10.1.rt7.274.el8_8, kernel-rt-debug-core 4.18.0-477.10.1.rt7.274.el8_8, kernel-rt-debug-modules 4.18.0-477.10.1.rt7.274.el8_8, kernel-rt-modules-extra 4.18.0-477.10.1.rt7.274.el8_8, +2 more
    fixed: vendor fix “To mitigate this issue, prevent module em28xx from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2023:2736
  • Red Hat Virtualization 4 Hypervisor for RHEL 8 perf 4.18.0-372.93.1.el8_6, kernel-debuginfo-common-x86_64 4.18.0-372.93.1.el8_6
    fixed: vendor fix “To mitigate this issue, prevent module em28xx from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2024:0930
  • Red Hat Enterprise Linux 6 perf, kernel, python-perf, kernel-kdump, kernel-firmware, kernel-bootwrapper, +1 more Red Hat Enterprise Linux 7 perf, kernel, bpftool, kernel-rt, python-perf, kernel-kdump, +8 more
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.25% chance of exploitation in the next 30 days, higher than 17% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

  • n/a Kernel

Classification

Weakness
Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.