VDB-196687 · CVE-2022-28796 · Nessus 246394

Linux Kernel up to 5.17.0 fs/jbd2/transaction.c jbd2_journal_wait_updates use after free

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.
5.3	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Linux Kernel up to 5.17.0. The impacted element is the function jbd2_journal_wait_updates of the file fs/jbd2/transaction.c. This manipulation causes use after free. This vulnerability is tracked as CVE-2022-28796. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in Linux Kernel up to 5.17.0 (Operating System). Affected by this vulnerability is the function jbd2_journal_wait_updates of the file fs/jbd2/transaction.c. The manipulation with an unknown input leads to a use after free vulnerability. The CWE definition for the vulnerability is CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was disclosed 04/08/2022 as cc16eecae687912238ee6efbff71ad31e2bc414e. It is possible to read the advisory at github.com. This vulnerability is known as CVE-2022-28796. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 246394 (Linux Distros Unpatched Vulnerability : CVE-2022-28796), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 5.17.1 eliminates this vulnerability. The upgrade is hosted for download at cdn.kernel.org. Applying the patch cc16eecae687912238ee6efbff71ad31e2bc414e is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at Tenable (246394). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Operating System

Vendor

Linux

Name

Kernel

Version

License

open-source

Website

Vendor: https://www.kernel.org/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

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

Exploitinginfo

Class: Use after free
CWE: CWE-416 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 246394
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2022-28796

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kernel 5.17.1
Patch: cc16eecae687912238ee6efbff71ad31e2bc414e

Timelineinfo

04/08/2022 🔍
04/08/2022 +0 days 🔍
08/09/2025 +1219 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: cc16eecae687912238ee6efbff71ad31e2bc414e
Status: Confirmed

CVE: CVE-2022-28796 (🔍)
GCVE (CVE): GCVE-0-2022-28796
GCVE (VulDB): GCVE-100-196687

Entryinfo

Created: 04/08/2022 12:39
Updated: 08/09/2025 05:50
Changes: 04/08/2022 12:39 (44), 08/09/2025 05:50 (16)
Complete: 🔍
Cache ID: 216::103