Linux Kernel Journaled File System fs/jfs/inode.c diFree null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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6.9$0-$5k0.00

Summaryinfo

A vulnerability has been found in Linux Kernel and classified as problematic. Affected is the function diFree of the file fs/jfs/inode.c of the component Journaled File System Handler. This manipulation causes null pointer dereference. This vulnerability appears as CVE-2022-3202. The attack may be initiated remotely. There is no available exploit. To fix this issue, it is recommended to deploy a patch.

Detailsinfo

A vulnerability classified as critical was found in Linux Kernel (Operating System) (the affected version unknown). Affected by this vulnerability is the function diFree of the file fs/jfs/inode.c of the component Journaled File System 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, and availability. The summary by CVE is:

A NULL pointer dereference flaw in diFree in fs/jfs/inode.c in Journaled File System (JFS)in the Linux kernel. This could allow a local attacker to crash the system or leak kernel internal information.

The weakness was presented 09/14/2022 as a53046291020ec41e09181396c1e829287b48d47. It is possible to read the advisory at github.com. This vulnerability is known as CVE-2022-3202 since 09/13/2022. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 239841 (TencentOS Server 4: kernel (TSSA-2024:0960)), which helps to determine the existence of the flaw in a target environment.

Applying the patch a53046291020ec41e09181396c1e829287b48d47 is able to eliminate this problem. The bugfix is ready for download at github.com.

The vulnerability is also documented in the vulnerability database at Tenable (239841). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.1
VulDB Meta Temp Score: 6.9

VulDB Base Score: 7.1
VulDB Temp Score: 6.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.1
NVD Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 239841
Nessus Name: TencentOS Server 4: kernel (TSSA-2024:0960)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: a53046291020ec41e09181396c1e829287b48d47

Timelineinfo

09/13/2022 🔍
09/14/2022 +1 days 🔍
09/14/2022 +0 days 🔍
06/19/2025 +1009 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: a53046291020ec41e09181396c1e829287b48d47
Status: Confirmed

CVE: CVE-2022-3202 (🔍)
GCVE (CVE): GCVE-0-2022-3202
GCVE (VulDB): GCVE-100-208603

Entryinfo

Created: 09/14/2022 19:34
Updated: 06/19/2025 20:13
Changes: 09/14/2022 19:34 (44), 10/17/2022 14:03 (10), 06/19/2025 20:13 (16)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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