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Public proof of conceptFix available

CVE-2023-0179

A public proof of concept exists; no exploitation attested.

  • Published2023-03-27
  • WeaknessCWE-190

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

A buffer overflow vulnerability was found in the Netfilter subsystem in the Linux Kernel. This issue could allow the leakage of both stack and heap addresses, and potentially allow Local Privilege Escalation to the root user via arbitrary code execution.

Timeline

dates in UTC
  1. 2023-03-2722:15CVE publishedNVD

Versions per branch

NVD
Canonical ubuntu linux
BranchAffectedFixed in
16.4= 16.04no fix published
18.4= 18.04no fix published
20.4= 20.04no fix published
22.4= 22.04no fix published
Linux linux kernel
BranchAffectedFixed in
6.1≥ 5.16, < 6.1.76.1.7
5.x≥ 5.11, < 5.15.895.15.89
5.x≥ 5.5.0, < 5.10.1645.10.164
Fedoraproject fedora
BranchAffectedFixed in
36.x= 36no fix published
37.x= 37no fix published

10 more products in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Products declared by the CNA1 product

As redhat, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

  • kernel
    Affected
    • = unknownno fix stated

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2023-05-11

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • dtb-aarch64openSUSE:Leap 15.5all versions · fixed in 5.14.21-150500.55.7.1and 10 other packages
  • dtb-aarch64openSUSE:Leap 15.4all versions · fixed in 5.14.21-150400.24.46.1and 9 other packages
  • dtb-aarch64openSUSE:Leap 15.4all versions · fixed in 5.3.18-150300.59.112.1
  • kernelRocky Linux:9all versions · fixed in 0:5.14.0-162.18.1.el9_1.cloud
  • kernelRed Hat:rhel_eus:9.0::baseosall versions · fixed in 0:5.14.0-70.49.1.el9_0and 27 other packages
  • kernelRed Hat:enterprise_linux:9::baseosall versions · fixed in 0:5.14.0-162.18.1.el9_1and 27 other packages
  • kernelopenEuler:22.03-LTS-SP1all versions · fixed in 5.10.0-136.17.0.93.oe2203sp1
  • kernelopenEuler:22.03-LTSall versions · fixed in 5.10.0-60.79.0.103.oe2203

222 more package ranges on OSV.dev

Vendor advisories

  • CVE-2023-0179 Red Hat Product Security441 products fixed

    kernel: Netfilter integer overflow vulnerability in nft_payload_copy_vlan

  • ICSA-23-166-10 CISA1 known affected

    Siemens SIMATIC S7-1500 TM MFP BIOS

    SIMATIC S7-1500 TM MFP - BIOS

  • SSA-831302 Siemens ProductCERT1 known affected

    SSA-831302: Vulnerabilities in the BIOS of the SIMATIC S7-1500 TM MFP before V1.3.0

    SIMATIC S7-1500 TM MFP - BIOS

  • RHSA-2023:1435 Red Hat Product Security35 products fixed

    Red Hat Security Advisory: kpatch-patch security update

  • RHSA-2023:1202 Red Hat Product Security166 products fixed

    Red Hat Security Advisory: kernel security, bug fix, and enhancement update

  • RHSA-2023:1203 Red Hat Product Security30 products fixed

    Red Hat Security Advisory: kernel-rt security and bug fix update

3 more advisories

Full record on NVD

Fix

  1. Vendor fix Siemens ProductCERT SSA-831302 · 1 productUpdate to V1.3.0 or later version
  2. Vendor fix CISA ICSA-23-166-10 · 1 productUpdate to V1.3.0 or later version
  3. Vendor fix Red Hat Product Security RHSA-2023:1435 · 35 productsFor details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
  4. Vendor fix Red Hat Product Security RHSA-2023:1202 · 166 productsFor details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 The system must be rebooted for this update to take effect.
  5. Workaround from the vendor Siemens ProductCERT SSA-831302 · 1 productOnly build and run applications from trusted sources
  6. Workaround from the vendor CISA ICSA-23-166-10 · 1 productOnly build and run applications from trusted sources

Detection

read 2026-11-01 01:02 UTC
Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

  • CISA-ADPSSVC decisionnone2025-02-19
  • NVDCVSS 3.17.8read 2026-10-23
  • CNAweakness (CWE)CWE-190known since 2026-10-23
  • NVDweakness (CWE)CWE-190read 2026-10-23
  • FIRST EPSSEPSS score1.9 %2026-11-08
  • PoC-in-GitHubproof of concept4known since 2026-11-01
  • OSVaffected packages—

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published
2023-03-27
Last Modified
2026-06-17
NVD status
Modified

Frequently asked questions

What is CVE-2023-0179?

A buffer overflow vulnerability was found in the Netfilter subsystem in the Linux Kernel. This issue could allow the leakage of both stack and heap addresses, and potentially allow Local Privilege Escalation to the root user via arbitrary code execution.

Is CVE-2023-0179 actively exploited?

Active exploitation of CVE-2023-0179 has not been confirmed. Its EPSS score was 1.9% on 2026-11-08, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2023-0179?

CVE-2023-0179 has a CVSS v3 base score of 7.8 (HIGH severity), with vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

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