FreeBSD up to 12.2/13.0 Listening Socket accf_create use after free

CVSS Meta Temp Score
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in FreeBSD up to 12.2/13.0. Affected by this issue is the function accf_create of the component Listening Socket Handler. This manipulation causes use after free. This vulnerability is handled as CVE-2021-29627. There is not any exploit available. It is recommended to apply a patch to fix this issue.

Detailsinfo

A vulnerability was found in FreeBSD up to 12.2/13.0 (Operating System). It has been declared as critical. Affected by this vulnerability is the function accf_create of the component Listening Socket Handler. 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 released 04/08/2021. It is possible to read the advisory at security.freebsd.org. This vulnerability is known as CVE-2021-29627. Technical details of the vulnerability are known, but there is no available exploit.

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

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

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-2021-29627 (🔍)
GCVE (CVE): GCVE-0-2021-29627
GCVE (VulDB): GCVE-100-172591

Entryinfo

Created: 04/08/2021 07:23
Updated: 04/11/2021 15:50
Changes: 04/08/2021 07:23 (39), 04/11/2021 15:50 (5)
Complete: 🔍
Cache ID: 216::103

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