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Fencer Vulns
low 3.5

CVE-2022-3606 json

Linux Kernel BPF libbpf.c find_prog_by_sec_insn null pointer dereference

published 2022-10-19 4 y ago modified 2026-10-14 25 d ago also EUVD-2022-42969

cvss
3.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 29%
public exploits
0
none known

Summary

A vulnerability was found in Linux Kernel. It has been classified as problematic. This affects the function find_prog_by_sec_insn of the file tools/lib/bpf/libbpf.c of the component BPF. The manipulation leads to null pointer dereference. It is recommended to apply a patch to fix this issue. The identifier VDB-211749 was assigned to this vulnerability.

Patch / fix

  • Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem V1.1
  • libbpf Debian 14, Debian 13, Debian 12 1.1.0-1

debian advisories DEBIAN-CVE-2022-3606

  • libbpf Ubuntu 22.04 LTS 0.5.0-1ubuntu22.04.1
  • dwarves-dfsg Ubuntu 20.04 LTS 1.21-0ubuntu1~20.04.1
  • libbpf Ubuntu Pro 20.04 LTS 0.5.0-1~ubuntu20.04.1+esm1
  • dwarves-dfsg Ubuntu Pro 18.04 LTS 1.21-0ubuntu1~18.04.1+esm1

ubuntu advisories UBUNTU-CVE-2022-3606

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-rt SLE Micro 5.2, SLE Micro 5.1, Real Time Module 15 SP3 5.3.18-150300.121.1
  • kernel-syms-rt Real Time Module 15 SP3 5.3.18-150300.121.1
  • kernel-rt_debug Real Time Module 15 SP3 5.3.18-150300.121.1
  • kernel-source-rt Real Time Module 15 SP3 5.3.18-150300.121.1
  • dtb-aarch64 openSUSE Leap 15.4 5.3.18-150300.59.112.1
  • kernel-64kb SLES 15 SP3-LTSS, SLE High Performance Computing 15 SP3-LTSS, SLE High Performance Computing 15 SP3-ESPOS +1 more 5.3.18-150300.59.112.1
  • kernel-syms SLES for SAP 15 SP3, SLES 15 SP3-LTSS, SLE Real Time 15 SP3 +3 more 5.3.18-150300.59.112.1
  • kernel-source SLES for SAP 15 SP3, SLES 15 SP3-LTSS, SLE Real Time 15 SP3 +6 more 5.3.18-150300.59.112.1

suse advisories SUSE-SU-2023:0779-1SUSE-SU-2023:0409-1SUSE-SU-2023:0405-1

  • kernel CBL-Mariner 2.0 5.15.122.1-2

azure linux advisories AZL-27429

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

  • 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-2022-3606 updated cvss 4.4

kernel: libbpf: NULL pointer dereference in find_prog_by_sec_insn

  • Red Hat Enterprise Linux 8 perf, kernel, libbpf, bpftool, kernel-rt, kernel-core, +30 more Red Hat Enterprise Linux 9 rv, perf, rtla, kernel, bpftool, libperf, +83 more
    affected: workaround, no fix planned “Will not fix”
  • 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 Red Hat Enterprise Linux 9 libbpf
    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

cisa ICSA-23-166-11 updated cvss 5.5

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

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
18 mo ago

Exploit prediction

0.35% chance of exploitation in the next 30 days, higher than 29% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 3.5 CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
NVD 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected products

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

Classification

Weakness
  • CWE-404 Improper Resource Shutdown or Release
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.