FreeBSD Virtual Memory System information disclosure

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.
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CTI Interest Score
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3.6$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in FreeBSD. The affected element is an unknown function of the component Virtual Memory System. The manipulation leads to information disclosure. This vulnerability is traded as CVE-2022-23091. An attack has to be approached locally. There is no exploit available. It is recommended to apply a patch to fix this issue.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in FreeBSD (Operating System) (affected version unknown). This issue affects an unknown functionality of the component Virtual Memory System. The manipulation with an unknown input leads to a information disclosure vulnerability. Using CWE to declare the problem leads to CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. Impacted is confidentiality. The summary by CVE is:

A particular case of memory sharing is mishandled in the virtual memory system. This is very similar to SA-21:08.vm, but with a different root cause. An unprivileged local user process can maintain a mapping of a page after it is freed, allowing that process to read private data belonging to other processes or the kernel.

The weakness was shared 02/15/2024 by Mark Johnston. It is possible to read the advisory at security.freebsd.org. The identification of this vulnerability is CVE-2022-23091 since 01/10/2022. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1592 according to MITRE ATT&CK.

Applying a patch is able to eliminate this problem.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.6
VulDB Meta Temp Score: 3.6

VulDB Base Score: 3.3
VulDB Temp Score: 3.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 4.0
CNA Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/10/2022 🔍
02/15/2024 +766 days 🔍
02/15/2024 +0 days 🔍
10/29/2024 +257 days 🔍

Sourcesinfo

Product: freebsd.org

Advisory: security.freebsd.org
Researcher: Mark Johnston
Status: Confirmed

CVE: CVE-2022-23091 (🔍)
GCVE (CVE): GCVE-0-2022-23091
GCVE (VulDB): GCVE-100-253919

Entryinfo

Created: 02/15/2024 09:07
Updated: 10/29/2024 04:24
Changes: 02/15/2024 09:07 (39), 10/29/2024 04:24 (27)
Complete: 🔍
Cache ID: 216::103

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