Linux Kernel IPsec drivers/atm/idt77252.c tst_timer 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.
5.9	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in Linux Kernel. This affects the function tst_timer of the file drivers/atm/idt77252.c of the component IPsec. The manipulation leads to use after free. This vulnerability is uniquely identified as CVE-2022-3635. There is no exploit available. It is recommended to apply a patch to fix this issue. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Linux Kernel (Operating System) (affected version not known). Affected by this issue is the function tst_timer of the file drivers/atm/idt77252.c of the component IPsec. The manipulation with an unknown input leads to a use after free vulnerability. Using CWE to declare the problem leads to CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. Impacted is confidentiality, integrity, and availability.

The weakness was shared 10/21/2022. The advisory is available at git.kernel.org. This vulnerability is handled as CVE-2022-3635. Technical details are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 236648 (Alibaba Cloud Linux 3 : 0002: cloud-kernel bugfix, enhancement and (ALINUX3-SA-2023:0002)), 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 vulnerability database at Tenable (236648). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Operating System

Vendor

Linux

Name

Kernel

License

open-source

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.0
VulDB Meta Temp Score: 5.9

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

NVD Base Score: 7.0
NVD Vector: 🔍

CNA Base Score: 5.5
CNA Vector (VulDB): 🔍

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: 🔍

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: 236648
Nessus Name: Alibaba Cloud Linux 3 : 0002: cloud-kernel bugfix, enhancement and (ALINUX3-SA-2023:0002)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: git.kernel.org

Timelineinfo

10/21/2022 🔍
10/21/2022 +0 days 🔍
10/21/2022 +0 days 🔍
05/18/2025 +940 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: DLA 3173-1
Status: Confirmed

CVE: CVE-2022-3635 (🔍)
GCVE (CVE): GCVE-0-2022-3635
GCVE (VulDB): GCVE-100-211934

Entryinfo

Created: 10/21/2022 12:33
Updated: 05/18/2025 22:53
Changes: 10/21/2022 12:33 (40), 10/21/2022 12:34 (1), 11/19/2022 08:15 (3), 11/19/2022 08:18 (21), 05/18/2025 22:53 (16)
Complete: 🔍
Cache ID: 216:227:103