Linux Kernel nftables nf_tables_api.c nft_set_lookup_global memory corruption

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.1$0-$5k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in Linux Kernel. The affected element is the function nft_set_lookup_global of the file net/netfilter/nf_tables_api.c of the component nftables. Executing a manipulation can lead to memory corruption. The identification of this vulnerability is CVE-2023-3117. There is no exploit available. Applying a patch is advised to resolve this issue.

Detailsinfo

A vulnerability has been found in Linux Kernel (Operating System) (affected version unknown) and classified as critical. This vulnerability affects the function nft_set_lookup_global of the file net/netfilter/nf_tables_api.c of the component nftables. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect integrity, and availability.

The weakness was shared 06/30/2023. The advisory is shared for download at bugzilla.redhat.com. This vulnerability was named CVE-2023-3117 since 06/06/2023. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 266262 (NewStart CGSL MAIN 6.06 : kernel Multiple Vulnerabilities (NS-SA-2025-0237)), 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 git.kernel.org.

The vulnerability is also documented in the databases at Tenable (266262) and EUVD (EUVD-2023-43803). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.2
VulDB Meta Temp Score: 6.1

VulDB Base Score: 4.6
VulDB Temp Score: 4.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔍
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 266262
Nessus Name: NewStart CGSL MAIN 6.06 : kernel Multiple Vulnerabilities (NS-SA-2025-0237)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: git.kernel.org

Timelineinfo

06/06/2023 🔍
06/30/2023 +24 days 🔍
06/30/2023 +0 days 🔍
01/26/2026 +941 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: bugzilla.redhat.com
Status: Confirmed

CVE: CVE-2023-3117 (🔍)
GCVE (CVE): GCVE-0-2023-3117
GCVE (VulDB): GCVE-100-232744
EUVD: 🔍

Entryinfo

Created: 06/30/2023 08:08
Updated: 01/26/2026 16:18
Changes: 06/30/2023 08:08 (41), 07/22/2023 07:15 (1), 07/22/2023 07:22 (11), 10/01/2025 10:17 (17), 01/26/2026 16:18 (1)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Want to know what is going to be exploited?

We predict KEV entries!