Linux Kernel nftables nft_byteorder.c nft_byteorder out-of-bounds write

CVSS Meta Temp Score
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CTI Interest Score
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6.4$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in Linux Kernel. Impacted is the function nft_byteorder of the file net/netfilter/nft_byteorder.c of the component nftables. This manipulation causes out-of-bounds write. The identification of this vulnerability is CVE-2023-35001. The attack can only be executed locally. There is no exploit available. Applying a patch is the recommended action to fix this issue.

Detailsinfo

A vulnerability classified as critical was found in Linux Kernel (Operating System) (version now known). Affected by this vulnerability is the function nft_byteorder of the file net/netfilter/nft_byteorder.c of the component nftables. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. The CWE definition for the vulnerability is CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Linux Kernel nftables Out-Of-Bounds Read/Write Vulnerability; nft_byteorder poorly handled vm register contents when CAP_NET_ADMIN is in any user or network namespace

The weakness was shared 07/06/2023. The advisory is shared at openwall.com. This vulnerability is known as CVE-2023-35001 since 06/29/2023. Technical details are known, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 276356 (TencentOS Server 3: kernel (TSSA-2023:0340)), which helps to determine the existence of the flaw in a target environment.

Applying a patch is able to eliminate this problem. The bugfix is ready for download at lore.kernel.org.

The vulnerability is also documented in the databases at Tenable (276356) and CERT Bund (WID-SEC-2023-1666). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Affected

  • IBM Security Guardium
  • Debian Linux
  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • Fedora Linux
  • Ubuntu Linux
  • SUSE Linux
  • Oracle Linux
  • Open Source Linux Kernel
  • IBM QRadar SIEM
  • Oracle VM
  • IBM Spectrum Protect

Productinfo

Type

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.4

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 7.8
CNA Vector (Canonical Ltd.): 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Out-of-bounds write
CWE: CWE-787 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 276356
Nessus Name: TencentOS Server 3: kernel (TSSA-2023:0340)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: lore.kernel.org

Timelineinfo

06/29/2023 🔍
07/06/2023 +7 days 🔍
07/06/2023 +0 days 🔍
11/23/2025 +871 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: openwall.com
Status: Confirmed

CVE: CVE-2023-35001 (🔍)
GCVE (CVE): GCVE-0-2023-35001
GCVE (VulDB): GCVE-100-233029
CERT Bund: WID-SEC-2023-1666 - Linux Kernel: Mehrere Schwachstellen

Entryinfo

Created: 07/06/2023 06:59
Updated: 11/23/2025 13:13
Changes: 07/06/2023 06:59 (52), 11/12/2025 08:54 (22), 11/23/2025 13:13 (2)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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