FreeBSD up to 11.3/12.1 Configuration Kernel Memory unusual condition

CVSS Meta Temp Score
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CTI Interest Score
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4.4$0-$5k0.00

Summaryinfo

A vulnerability was found in FreeBSD up to 11.3/12.1. It has been rated as problematic. This vulnerability affects unknown code of the component Configuration. The manipulation leads to unusual condition (Kernel Memory). This vulnerability is listed as CVE-2020-7453. The attack must be carried out locally. There is no available exploit. It is suggested to install a patch to address this issue.

Detailsinfo

A vulnerability was found in FreeBSD up to 11.3/12.1 (Operating System) and classified as problematic. This issue affects an unknown function of the component Configuration. The manipulation with an unknown input leads to a unusual condition vulnerability (Kernel Memory). Using CWE to declare the problem leads to CWE-754. The product does not check or incorrectly checks for unusual or exceptional conditions that are not expected to occur frequently during day to day operation of the product. Impacted is confidentiality. The summary by CVE is:

In FreeBSD 12.1-STABLE before r359021, 12.1-RELEASE before 12.1-RELEASE-p3, 11.3-STABLE before r359020, and 11.3-RELEASE before 11.3-RELEASE-p7, a missing null termination check in the jail_set configuration option "osrelease" may return more bytes with a subsequent jail_get system call allowing a malicious jail superuser with permission to create nested jails to read kernel memory.

The weakness was presented 04/29/2020 (Website). The advisory is shared at security.FreeBSD.org. The identification of this vulnerability is CVE-2020-7453 since 01/21/2020. An attack has to be approached locally. The successful exploitation requires a simple authentication. Neither technical details nor an exploit are publicly available.

Applying a patch is able to eliminate this problem.

See VDB-154552 for similar entry. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.6
VulDB Meta Temp Score: 4.6

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

NVD Base Score: 6.0
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Name: Kernel Memory
Class: Unusual condition / Kernel Memory
CWE: CWE-754
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

01/21/2020 🔍
04/29/2020 +99 days 🔍
04/29/2020 +0 days 🔍
10/14/2020 +168 days 🔍

Sourcesinfo

Product: freebsd.org

Advisory: security.FreeBSD.org
Status: Not defined
Confirmation: 🔍

CVE: CVE-2020-7453 (🔍)
GCVE (CVE): GCVE-0-2020-7453
GCVE (VulDB): GCVE-100-154553
See also: 🔍

Entryinfo

Created: 04/29/2020 08:32
Updated: 10/14/2020 07:28
Changes: 04/29/2020 08:32 (39), 04/29/2020 09:21 (18), 10/14/2020 07:28 (1)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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