FreeBSD 11.2/11.3/12.0 Reference Counter access control

CVSS Meta Temp Score
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CTI Interest Score
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7.6$0-$5k0.00

Summaryinfo

A vulnerability described as critical has been identified in FreeBSD 11.2/11.3/12.0. Impacted is an unknown function of the component Reference Counter. Such manipulation leads to access control. This vulnerability is documented as CVE-2019-5607. The attack needs to be performed locally. There is not any exploit available. It is advisable to implement a patch to correct this issue.

Detailsinfo

A vulnerability, which was classified as critical, has been found in FreeBSD 11.2/11.3/12.0 (Operating System). Affected by this issue is an unknown code block of the component Reference Counter. The manipulation with an unknown input leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-264. Impacted is confidentiality, integrity, and availability. CVE summarizes:

In FreeBSD 12.0-STABLE before r350222, 12.0-RELEASE before 12.0-RELEASE-p8, 11.3-STABLE before r350223, 11.3-RELEASE before 11.3-RELEASE-p1, and 11.2-RELEASE before 11.2-RELEASE-p12, rights transmitted over a domain socket did not properly release a reference on transmission error allowing a malicious user to cause the reference counter to wrap, forcing a free event. This could allow a malicious local user to gain root privileges or escape from a jail.

The weakness was released 07/26/2019 (Website). The advisory is shared for download at security.FreeBSD.org. This vulnerability is handled as CVE-2019-5607 since 01/07/2019. The attack needs to be approached locally. The requirement for exploitation is a simple authentication. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1068.

Applying a patch is able to eliminate this problem.

Entries connected to this vulnerability are available at VDB-138833, VDB-138834 and VDB-138835. Once again VulDB remains the best 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: 7.8
VulDB Meta Temp Score: 7.6

VulDB Base Score: 7.8
VulDB Temp Score: 7.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
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

Class: Access control
CWE: CWE-264
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

01/07/2019 🔍
07/26/2019 +200 days 🔍
07/26/2019 +0 days 🔍
11/13/2023 +1571 days 🔍

Sourcesinfo

Product: freebsd.org

Advisory: 153755
Status: Not defined
Confirmation: 🔍

CVE: CVE-2019-5607 (🔍)
GCVE (CVE): GCVE-0-2019-5607
GCVE (VulDB): GCVE-100-138836
See also: 🔍

Entryinfo

Created: 07/26/2019 08:03
Updated: 11/13/2023 08:41
Changes: 07/26/2019 08:03 (57), 07/12/2020 18:24 (1), 11/13/2023 08:41 (4)
Complete: 🔍
Cache ID: 216::103

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