Apple macOS up to 11.0.0 FontParser out-of-bounds write

CVSS Meta Temp Score
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CTI Interest Score
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6.7$0-$5k0.00

Summaryinfo

A vulnerability was found in Apple macOS up to 11.0.0 and classified as critical. This impacts an unknown function of the component FontParser. The manipulation results in out-of-bounds write. This vulnerability is cataloged as CVE-2020-27927. The attack may be launched remotely. There is no exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical has been found in Apple macOS up to 11.0.0 (Operating System). Affected is an unknown code of the component FontParser. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. CWE is classifying the issue as CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was shared 11/05/2020 by Xingwei Lin as HT211931 as confirmed advisory (Website). The advisory is available at support.apple.com. This vulnerability is traded as CVE-2020-27927 since 10/27/2020. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available.

Upgrading to version 11.0.1 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.0
VulDB Meta Temp Score: 6.9

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
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: Out-of-bounds write
CWE: CWE-787 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

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: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: macOS 11.0.1

Timelineinfo

10/27/2020 🔍
11/05/2020 +9 days 🔍
11/05/2020 +0 days 🔍
12/09/2020 +34 days 🔍
12/14/2020 +5 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT211931
Researcher: Xingwei Lin
Status: Confirmed

CVE: CVE-2020-27927 (🔍)
GCVE (CVE): GCVE-0-2020-27927
GCVE (VulDB): GCVE-100-165834
scip Labs: https://www.scip.ch/en/?labs.20180712

Entryinfo

Created: 12/09/2020 11:47
Updated: 12/14/2020 14:52
Changes: 12/09/2020 11:47 (46), 12/14/2020 14:46 (1), 12/14/2020 14:52 (18)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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