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high 7.8

CVE-2022-32250 json

net/netfilter/nf_tables_api.c in the Linux kernel through 5.18.1 allows a local user (able to create user/net namespaces) to escalate privi…

published 4y ago modified 26d ago also EUVD-2022-53447

cvss
7.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.9%
EPSS 2.9% chance of exploitation in 30 days, percentile 87%
public exploits
0
none known

Summary

net/netfilter/nf_tables_api.c in the Linux kernel through 5.18.1 allows a local user (able to create user/net namespaces) to escalate privileges to root because an incorrect NFT_STATEFUL_EXPR check leads to a use-after-free.

Patch / fix

  • Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem V1.1
  • linux Debian 14, Debian 13, Debian 12 5.18.2-1

debian advisories DEBIAN-CVE-2022-32250

  • linux Ubuntu 18.04 LTS 4.15.0-184.194
  • 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 4.15.0-1133.143
  • 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-2022-32250

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

  • redhat-virtualization-host rhev hypervisor 4.4 4.5.2-202209140405_8.6
  • redhat-virtualization-host-image-update rhev hypervisor 4.4 4.5.2-202209140405_8.6
  • kpatch-patch-3_10_0-1160_36_2 RHEL 7 1-8.el7
  • kpatch-patch-3_10_0-1160_41_1 RHEL 7 1-7.el7
  • kpatch-patch-3_10_0-1160_42_2 RHEL 7 1-6.el7
  • kpatch-patch-3_10_0-1160_45_1 RHEL 7 1-5.el7
  • kpatch-patch-3_10_0-1160_49_1 RHEL 7 1-4.el7
  • kpatch-patch-3_10_0-1160_53_1 RHEL 7 1-4.el7

red hat advisories RHSA-2022:6551RHSA-2022:5216RHSA-2022:5806RHSA-2022:5249RHSA-2022:5220RHSA-2022:5224

  • 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
  • kernel-syms SLES for SAP 15 SP2, SLES 15 SP2-LTSS, SLES 15 SP2-BCL +6 more 5.3.18-150200.24.129.1
  • kernel-source SLES for SAP 15 SP2, SLES 15 SP2-LTSS, SLES 15 SP2-BCL +6 more 5.3.18-150200.24.129.1
  • kernel-default SLES for SAP 15 SP2, SLES 15 SP2-LTSS, SLES 15 SP2-BCL +8 more 5.3.18-150200.24.129.1
  • kernel-preempt SLES for SAP 15 SP2, SLES 15 SP2-LTSS, SLES 15 SP2-BCL +6 more 5.3.18-150200.24.129.1

suse advisories SUSE-SU-2022:4617-1SUSE-SU-2022:3450-1SUSE-SU-2022:3293-1SUSE-SU-2022:2875-2SUSE-SU-2022:2875-1SUSE-SU-2022:2741-1

  • kernel-rt openSUSE Leap Micro 5.2 5.3.18-150300.93.1

opensuse advisories openSUSE-SU-2022:2177-1

  • kernel AlmaLinux 8 4.18.0-372.19.1.el8_6
  • perf AlmaLinux 8 4.18.0-372.19.1.el8_6
  • bpftool AlmaLinux 8 4.18.0-372.19.1.el8_6
  • kernel-core AlmaLinux 8 4.18.0-372.19.1.el8_6
  • kernel-tools AlmaLinux 8 4.18.0-372.19.1.el8_6
  • python3-perf AlmaLinux 8 4.18.0-372.19.1.el8_6
  • kernel-modules AlmaLinux 8 4.18.0-372.19.1.el8_6
  • kernel-debug-core AlmaLinux 8 4.18.0-372.19.1.el8_6

almalinux advisories ALSA-2022:5819ALSA-2022:5834

  • kernel-rt Rocky Linux 8 4.18.0-372.19.1.rt7.176.el8_6
  • kernel Rocky Linux 8 4.18.0-372.19.1.el8_6

rocky linux advisories RLSA-2022:5834RLSA-2022:5819

  • kernel CBL-Mariner 2.0 5.15.45.1-2

azure linux advisories AZL-9879

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

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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-2022-32250 updated cvss 7.8

kernel: a use-after-free write in the netfilter subsystem can lead to privilege escalation to root

  • Red Hat CodeReady Linux Builder (v. 9) kernel-debuginfo-common-s390x 5.14.0-70.17.1.el9_0, kernel-debuginfo-common-x86_64 5.14.0-70.17.1.el9_0, kernel-debuginfo-common-aarch64 5.14.0-70.17.1.el9_0, kernel-debuginfo-common-ppc64le 5.14.0-70.17.1.el9_0
    fixed: vendor fix RHSA-2022:5249
  • Red Hat CodeReady Linux Builder EUS (v. 8.2) kernel-debuginfo-common-x86_64 4.18.0-193.87.1.el8_2, kernel-debuginfo-common-aarch64 4.18.0-193.87.1.el8_2, kernel-debuginfo-common-ppc64le 4.18.0-193.87.1.el8_2
    fixed: vendor fix RHSA-2022:5220
  • Red Hat Enterprise Linux AppStream (v. 9) perf 5.14.0-70.17.1.el9_0, kernel-devel-matched 5.14.0-70.17.1.el9_0, kernel-debug-devel-matched 5.14.0-70.17.1.el9_0, kernel-debuginfo-common-s390x 5.14.0-70.17.1.el9_0, kernel-zfcpdump-devel-matched 5.14.0-70.17.1.el9_0, kernel-debuginfo-common-x86_64 5.14.0-70.17.1.el9_0, +2 more
    fixed: vendor fix RHSA-2022:5249
  • Red Hat Enterprise Linux BaseOS (v. 8) perf 4.18.0-372.19.1.el8_6, kernel 4.18.0-372.19.1.el8_6, bpftool 4.18.0-372.19.1.el8_6, kernel-core 4.18.0-372.19.1.el8_6, kernel-tools 4.18.0-372.19.1.el8_6, python3-perf 4.18.0-372.19.1.el8_6, +18 more
    fixed: vendor fix RHSA-2022:5819
  • Red Hat Enterprise Linux BaseOS (v. 9) kernel 5.14.0-70.17.1.el9_0, bpftool 5.14.0-70.17.1.el9_0, kernel-core 5.14.0-70.17.1.el9_0, kernel-tools 5.14.0-70.17.1.el9_0, python3-perf 5.14.0-70.17.1.el9_0, kernel-modules 5.14.0-70.17.1.el9_0, +15 more
    fixed: vendor fix RHSA-2022:5249
  • Red Hat Enterprise Linux BaseOS E4S (v. 8.1) perf 4.18.0-147.70.1.el8_1, kernel 4.18.0-147.70.1.el8_1, bpftool 4.18.0-147.70.1.el8_1, kernel-core 4.18.0-147.70.1.el8_1, kernel-tools 4.18.0-147.70.1.el8_1, python3-perf 4.18.0-147.70.1.el8_1, +18 more
    fixed: vendor fix RHSA-2022:5636
  • Red Hat Enterprise Linux BaseOS EUS (v. 8.2) perf 4.18.0-193.87.1.el8_2, kernel 4.18.0-193.87.1.el8_2, bpftool 4.18.0-193.87.1.el8_2, kernel-core 4.18.0-193.87.1.el8_2, kernel-tools 4.18.0-193.87.1.el8_2, python3-perf 4.18.0-193.87.1.el8_2, +25 more
    fixed: vendor fix RHSA-2022:5220
  • Red Hat Enterprise Linux BaseOS EUS (v.8.4) perf 4.18.0-305.57.1.el8_4, kernel 4.18.0-305.57.1.el8_4, bpftool 4.18.0-305.57.1.el8_4, kernel-core 4.18.0-305.57.1.el8_4, kernel-tools 4.18.0-305.57.1.el8_4, python3-perf 4.18.0-305.57.1.el8_4, +26 more
    fixed: vendor fix RHSA-2022:5626
show 29 more
  • Red Hat Enterprise Linux Client (v. 7) perf 3.10.0-1160.71.1.el7, kernel 3.10.0-1160.71.1.el7, bpftool 3.10.0-1160.71.1.el7, python-perf 3.10.0-1160.71.1.el7, kernel-tools 3.10.0-1160.71.1.el7, kernel-tools-libs 3.10.0-1160.71.1.el7, +2 more Red Hat Enterprise Linux Client Optional (v. 7) kernel-debuginfo-common-x86_64 3.10.0-1160.71.1.el7 Red Hat Enterprise Linux ComputeNode Optional (v. 7) kernel-debuginfo-common-x86_64 3.10.0-1160.71.1.el7
    fixed: vendor fix RHSA-2022:5232
  • Red Hat Enterprise Linux CRB (v. 8) kernel-debuginfo-common-x86_64 4.18.0-372.19.1.el8_6, kernel-debuginfo-common-aarch64 4.18.0-372.19.1.el8_6, kernel-debuginfo-common-ppc64le 4.18.0-372.19.1.el8_6
    fixed: vendor fix RHSA-2022:5819
  • Red Hat Enterprise Linux CRB EUS (v.8.4) kernel-debuginfo-common-x86_64 4.18.0-305.57.1.el8_4, kernel-debuginfo-common-aarch64 4.18.0-305.57.1.el8_4, kernel-debuginfo-common-ppc64le 4.18.0-305.57.1.el8_4
    fixed: vendor fix RHSA-2022:5626
  • Red Hat Enterprise Linux for Real Time (v. 7) kernel-rt 3.10.0-1160.71.1.rt56.1212.el7, kernel-rt-trace 3.10.0-1160.71.1.rt56.1212.el7, kernel-rt-debuginfo-common-x86_64 3.10.0-1160.71.1.rt56.1212.el7 Red Hat Enterprise Linux for Real Time for NFV (v. 7) kernel-rt 3.10.0-1160.71.1.rt56.1212.el7, kernel-rt-kvm 3.10.0-1160.71.1.rt56.1212.el7, kernel-rt-trace 3.10.0-1160.71.1.rt56.1212.el7, kernel-rt-debug-kvm 3.10.0-1160.71.1.rt56.1212.el7, kernel-rt-trace-kvm 3.10.0-1160.71.1.rt56.1212.el7, kernel-rt-debuginfo-common-x86_64 3.10.0-1160.71.1.rt56.1212.el7
    fixed: vendor fix RHSA-2022:5236
  • Red Hat Enterprise Linux NFV (v. 8) kernel-rt 4.18.0-372.19.1.rt7.176.el8_6, kernel-rt-kvm 4.18.0-372.19.1.rt7.176.el8_6, kernel-rt-core 4.18.0-372.19.1.rt7.176.el8_6, kernel-rt-modules 4.18.0-372.19.1.rt7.176.el8_6, kernel-rt-debug-kvm 4.18.0-372.19.1.rt7.176.el8_6, kernel-rt-debug-core 4.18.0-372.19.1.rt7.176.el8_6, +4 more
    fixed: vendor fix RHSA-2022:5834
  • Red Hat Enterprise Linux NFV EUS (v.8.4) kernel-rt 4.18.0-305.57.1.rt7.129.el8_4, kernel-rt-kvm 4.18.0-305.57.1.rt7.129.el8_4, kernel-rt-core 4.18.0-305.57.1.rt7.129.el8_4, kernel-rt-modules 4.18.0-305.57.1.rt7.129.el8_4, kernel-rt-debug-kvm 4.18.0-305.57.1.rt7.129.el8_4, kernel-rt-debug-core 4.18.0-305.57.1.rt7.129.el8_4, +4 more
    fixed: vendor fix RHSA-2022:5633
  • Red Hat Enterprise Linux Real Time (v. 9) kernel-rt 5.14.0-70.17.1.rt21.89.el9_0, kernel-rt-core 5.14.0-70.17.1.rt21.89.el9_0, kernel-rt-modules 5.14.0-70.17.1.rt21.89.el9_0, kernel-rt-debug-core 5.14.0-70.17.1.rt21.89.el9_0, kernel-rt-debug-modules 5.14.0-70.17.1.rt21.89.el9_0, kernel-rt-modules-extra 5.14.0-70.17.1.rt21.89.el9_0, +2 more
    fixed: vendor fix RHSA-2022:5267
  • Red Hat Enterprise Linux Real Time EUS (v. 8.2) kernel-rt 4.18.0-193.87.1.rt13.137.el8_2, kernel-rt-core 4.18.0-193.87.1.rt13.137.el8_2, kernel-rt-modules 4.18.0-193.87.1.rt13.137.el8_2, kernel-rt-debug-core 4.18.0-193.87.1.rt13.137.el8_2, kernel-rt-debug-modules 4.18.0-193.87.1.rt13.137.el8_2, kernel-rt-modules-extra 4.18.0-193.87.1.rt13.137.el8_2, +2 more
    fixed: vendor fix RHSA-2022:5224
  • Red Hat Enterprise Linux Real Time for NFV (v. 9) kernel-rt 5.14.0-70.17.1.rt21.89.el9_0, kernel-rt-kvm 5.14.0-70.17.1.rt21.89.el9_0, kernel-rt-core 5.14.0-70.17.1.rt21.89.el9_0, kernel-rt-modules 5.14.0-70.17.1.rt21.89.el9_0, kernel-rt-debug-kvm 5.14.0-70.17.1.rt21.89.el9_0, kernel-rt-debug-core 5.14.0-70.17.1.rt21.89.el9_0, +4 more
    fixed: vendor fix RHSA-2022:5267
  • Red Hat Enterprise Linux Real Time for NFV EUS (v. 8.2) kernel-rt 4.18.0-193.87.1.rt13.137.el8_2, kernel-rt-kvm 4.18.0-193.87.1.rt13.137.el8_2, kernel-rt-core 4.18.0-193.87.1.rt13.137.el8_2, kernel-rt-modules 4.18.0-193.87.1.rt13.137.el8_2, kernel-rt-debug-kvm 4.18.0-193.87.1.rt13.137.el8_2, kernel-rt-debug-core 4.18.0-193.87.1.rt13.137.el8_2, +4 more
    fixed: vendor fix RHSA-2022:5224
  • Red Hat Enterprise Linux RT (v. 8) kernel-rt 4.18.0-372.19.1.rt7.176.el8_6, kernel-rt-core 4.18.0-372.19.1.rt7.176.el8_6, kernel-rt-modules 4.18.0-372.19.1.rt7.176.el8_6, kernel-rt-debug-core 4.18.0-372.19.1.rt7.176.el8_6, kernel-rt-debug-modules 4.18.0-372.19.1.rt7.176.el8_6, kernel-rt-modules-extra 4.18.0-372.19.1.rt7.176.el8_6, +2 more
    fixed: vendor fix RHSA-2022:5834
  • Red Hat Enterprise Linux RT EUS (v.8.4) kernel-rt 4.18.0-305.57.1.rt7.129.el8_4, kernel-rt-core 4.18.0-305.57.1.rt7.129.el8_4, kernel-rt-modules 4.18.0-305.57.1.rt7.129.el8_4, kernel-rt-debug-core 4.18.0-305.57.1.rt7.129.el8_4, kernel-rt-debug-modules 4.18.0-305.57.1.rt7.129.el8_4, kernel-rt-modules-extra 4.18.0-305.57.1.rt7.129.el8_4, +2 more
    fixed: vendor fix RHSA-2022:5633
  • Red Hat Enterprise Linux Server (v. 7) perf 3.10.0-1160.71.1.el7, kernel 3.10.0-1160.71.1.el7, bpftool 3.10.0-1160.71.1.el7, python-perf 3.10.0-1160.71.1.el7, kernel-kdump 3.10.0-1160.71.1.el7, kernel-tools 3.10.0-1160.71.1.el7, +16 more
    fixed: vendor fix RHSA-2022:5232
  • Red Hat Enterprise Linux Server AUS (v. 7.3) perf 3.10.0-514.104.1.el7, kernel 3.10.0-514.104.1.el7, python-perf 3.10.0-514.104.1.el7, kernel-tools 3.10.0-514.104.1.el7, kernel-tools-libs 3.10.0-514.104.1.el7, kernel-abi-whitelists 3.10.0-514.104.1.el7, +1 more
    fixed: vendor fix RHSA-2022:5806
  • Red Hat Enterprise Linux Server AUS (v. 7.4) perf 3.10.0-693.104.1.el7, kernel 3.10.0-693.104.1.el7, python-perf 3.10.0-693.104.1.el7, kernel-tools 3.10.0-693.104.1.el7, kernel-tools-libs 3.10.0-693.104.1.el7, kernel-abi-whitelists 3.10.0-693.104.1.el7, +1 more
    fixed: vendor fix RHSA-2022:5805
  • Red Hat Enterprise Linux Server AUS (v. 7.6) perf 3.10.0-957.95.1.el7, kernel 3.10.0-957.95.1.el7, bpftool 3.10.0-957.95.1.el7, python-perf 3.10.0-957.95.1.el7, kernel-tools 3.10.0-957.95.1.el7, kernel-tools-libs 3.10.0-957.95.1.el7, +2 more
    fixed: vendor fix RHSA-2022:5802
  • Red Hat Enterprise Linux Server AUS (v. 7.7) perf 3.10.0-1062.68.1.el7, kernel 3.10.0-1062.68.1.el7, bpftool 3.10.0-1062.68.1.el7, python-perf 3.10.0-1062.68.1.el7, kernel-tools 3.10.0-1062.68.1.el7, kernel-tools-libs 3.10.0-1062.68.1.el7, +2 more
    fixed: vendor fix RHSA-2022:6073
  • Red Hat Enterprise Linux Server E4S (v. 7.6) perf 3.10.0-957.95.1.el7, kernel 3.10.0-957.95.1.el7, python-perf 3.10.0-957.95.1.el7, kernel-tools 3.10.0-957.95.1.el7, kpatch-patch-3_10_0-957_80_1 1-6.el7, kpatch-patch-3_10_0-957_84_1 1-5.el7, +8 more
    fixed: vendor fix RHSA-2022:5802
  • Red Hat Enterprise Linux Server E4S (v. 7.7) perf 3.10.0-1062.68.1.el7, kernel 3.10.0-1062.68.1.el7, bpftool 3.10.0-1062.68.1.el7, python-perf 3.10.0-1062.68.1.el7, kernel-tools 3.10.0-1062.68.1.el7, kpatch-patch-3_10_0-1062_56_1 1-6.el7, +10 more
    fixed: vendor fix RHSA-2022:6073
  • Red Hat Enterprise Linux Server Optional (v. 7) kernel-debuginfo-common-ppc64 3.10.0-1160.71.1.el7, kernel-debuginfo-common-x86_64 3.10.0-1160.71.1.el7, kernel-debuginfo-common-ppc64le 3.10.0-1160.71.1.el7
    fixed: vendor fix RHSA-2022:5232
  • Red Hat Enterprise Linux Server Optional AUS (v. 7.3) kernel-debuginfo-common-x86_64 3.10.0-514.104.1.el7
    fixed: vendor fix RHSA-2022:5806
  • Red Hat Enterprise Linux Server Optional AUS (v. 7.4) kernel-debuginfo-common-x86_64 3.10.0-693.104.1.el7
    fixed: vendor fix RHSA-2022:5805
  • Red Hat Enterprise Linux Server Optional AUS (v. 7.6) kernel-debuginfo-common-x86_64 3.10.0-957.95.1.el7
    fixed: vendor fix RHSA-2022:5802
  • Red Hat Enterprise Linux Server Optional AUS (v. 7.7) kernel-debuginfo-common-x86_64 3.10.0-1062.68.1.el7
    fixed: vendor fix RHSA-2022:6073
  • Red Hat Enterprise Linux Server Optional E4S (v. 7.6) kernel-debuginfo-common-x86_64 3.10.0-957.95.1.el7, kernel-debuginfo-common-ppc64le 3.10.0-957.95.1.el7
    fixed: vendor fix RHSA-2022:5802
  • Red Hat Enterprise Linux Server Optional E4S (v. 7.7) kernel-debuginfo-common-x86_64 3.10.0-1062.68.1.el7, kernel-debuginfo-common-ppc64le 3.10.0-1062.68.1.el7
    fixed: vendor fix RHSA-2022:6073
  • Red Hat Enterprise Linux Server Optional TUS (v. 7.6) kernel-debuginfo-common-x86_64 3.10.0-957.95.1.el7
    fixed: vendor fix RHSA-2022:5802
  • Red Hat Enterprise Linux Server Optional TUS (v. 7.7) kernel-debuginfo-common-x86_64 3.10.0-1062.68.1.el7
    fixed: vendor fix RHSA-2022:6073
  • Red Hat Enterprise Linux Server TUS (v. 7.6) perf 3.10.0-957.95.1.el7, kernel 3.10.0-957.95.1.el7, bpftool 3.10.0-957.95.1.el7, python-perf 3.10.0-957.95.1.el7, kernel-tools 3.10.0-957.95.1.el7, kernel-tools-libs 3.10.0-957.95.1.el7, +2 more
    fixed: vendor fix RHSA-2022:5802

6 more fixed, 3 more not affected in the full advisory

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

cisa ICSA-23-166-11 updated cvss 7.8

Siemens SIMATIC S7-1500 TM MFP Linux Kernel

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

Exploit prediction

2.91% chance of exploitation in the next 30 days, higher than 87% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • openwall.com https://www.openwall.com/lists/oss-security/2022/05/31/1 referenced PoC, tagged "exploit" by a source, unverified
  • openwall.com http://www.openwall.com/lists/oss-security/2022/06/03/1 referenced PoC, tagged "exploit" by a source, unverified
  • blog.theori.io https://blog.theori.io/research/CVE-2022-32250-linux-kernel-lpe-2022/ referenced PoC, tagged "exploit" by a source, unverified
  • github.com https://github.com/theori-io/CVE-2022-32250-exploit referenced PoC, tagged "exploit" by a source, unverified

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
NVD 2.0 7.2 AV:L/AC:L/Au:N/C:C/I:C/A:C

Affected products

  • Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem

Classification

Weakness
Technology feeds

References

Sources

Fencer Intel 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.