Linux Kernel up to 6.6-rc6 Netlink Attribute nft_inner.c null pointer dereference

| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 7.3 | $0-$5k | 0.00 |
Summary
A vulnerability classified as critical has been found in Linux Kernel up to 6.6-rc6. Affected is an unknown function of the file nft_inner.c of the component Netlink Attribute Handler. This manipulation causes null pointer dereference. This vulnerability is handled as CVE-2023-5972. It is possible to launch the attack on the local host. There is not any exploit available.
Details
A vulnerability has been found in Linux Kernel up to 6.6-rc6 (Operating System) and classified as critical. Affected by this vulnerability is some unknown processing of the file nft_inner.c of the component Netlink Attribute Handler. The manipulation with an unknown input leads to a null pointer dereference vulnerability. The CWE definition for the vulnerability is CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. As an impact it is known to affect confidentiality, integrity, and availability.
The weakness was released 11/23/2023. It is possible to read the advisory at access.redhat.com. This vulnerability is known as CVE-2023-5972 since 11/06/2023. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 12/16/2023).
There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.
Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.
Product
Type
Vendor
Name
Version
License
Website
- Vendor: https://www.kernel.org/
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 7.3VulDB Meta Temp Score: 7.3
VulDB Base Score: 7.0
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 7.8
NVD Vector: 🔍
CNA Base Score: 7.0
CNA Vector (Red Hat, Inc.): 🔍
CVSSv2
| AV | AC | Au | C | I | A |
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| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
Exploiting
Class: Null pointer dereferenceCWE: CWE-476 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍
Physical: Partially
Local: Yes
Remote: No
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
| 0-Day | Unlock | Unlock | Unlock | Unlock |
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Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: no mitigation knownStatus: 🔍
0-Day Time: 🔍
Patch: github.com
Timeline
11/06/2023 🔍11/23/2023 🔍
11/23/2023 🔍
12/16/2023 🔍
Sources
Vendor: kernel.orgAdvisory: 505ce0630ad5d31185695f8a29dde8d29f28faa7
Status: Confirmed
CVE: CVE-2023-5972 (🔍)
GCVE (CVE): GCVE-0-2023-5972
GCVE (VulDB): GCVE-100-246091
Entry
Created: 11/23/2023 18:33Updated: 12/16/2023 12:53
Changes: 11/23/2023 18:33 (48), 12/16/2023 12:46 (3), 12/16/2023 12:53 (12)
Complete: 🔍
Cache ID: 216::103
Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.
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