FreeBSD up to 11.4/12.2/13.0-RC5/12.2 Shared Memory Page use after free

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in FreeBSD up to 11.4/12.2/13.0-RC5/12.2. Affected by this vulnerability is an unknown functionality of the component Shared Memory Page Handler. The manipulation results in use after free. This vulnerability is known as CVE-2021-29626. No exploit is available. It is best practice to apply a patch to resolve this issue.

Detailsinfo

A vulnerability was found in FreeBSD up to 11.4/12.2/13.0-RC5/12.2 (Operating System). It has been classified as problematic. Affected is an unknown code block of the component Shared Memory Page Handler. The manipulation with an unknown input leads to a use after free vulnerability. CWE is classifying the issue as CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was published 04/08/2021. The advisory is available at security.freebsd.org. This vulnerability is traded as CVE-2021-29626. The technical details are unknown and an exploit is not available.

Applying a patch is able to eliminate this problem. The bugfix is ready for download at security.freebsd.org.

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Productinfo

Type

Name

Version

License

Website

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

AVACAuCIA
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💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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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: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: security.freebsd.org

Timelineinfo

03/30/2021 🔍
04/08/2021 +9 days 🔍
04/08/2021 +0 days 🔍
04/11/2021 +3 days 🔍

Sourcesinfo

Product: freebsd.org

Advisory: security.freebsd.org
Status: Confirmed

CVE: CVE-2021-29626 (🔍)
GCVE (CVE): GCVE-0-2021-29626
GCVE (VulDB): GCVE-100-172590

Entryinfo

Created: 04/08/2021 07:22
Updated: 04/11/2021 15:43
Changes: 04/08/2021 07:22 (37), 04/11/2021 15:43 (5)
Complete: 🔍
Cache ID: 216::103

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