Apple iCloud up to 11.4 on Windows ImageIO 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, which was classified as critical, has been found in Apple iCloud up to 11.4 on Windows. This affects an unknown function of the component ImageIO. The manipulation leads to out-of-bounds write. This vulnerability is referenced as CVE-2020-27912. Remote exploitation of the attack is possible. No exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Apple iCloud up to 11.4 on Windows (Cloud Software). It has been rated as critical. This issue affects an unknown functionality of the component ImageIO. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. Using CWE to declare the problem leads to CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. Impacted is confidentiality, integrity, and availability.

The weakness was published 12/02/2020 by Xingwei Lin as HT211935 as confirmed advisory (Website). It is possible to read the advisory at support.apple.com. The identification of this vulnerability is CVE-2020-27912. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The advisory points out:

Processing a maliciously crafted image may lead to arbitrary code execution

Upgrading to version 11.5 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability. The advisory contains the following remark:

An out-of-bounds write was addressed with improved input validation.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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: iCloud 11.5

Timelineinfo

10/27/2020 🔍
12/02/2020 +36 days 🔍
12/02/2020 +0 days 🔍
12/06/2020 +4 days 🔍
12/13/2020 +6 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT211935
Researcher: Xingwei Lin
Status: Confirmed

CVE: CVE-2020-27912 (🔍)
GCVE (CVE): GCVE-0-2020-27912
GCVE (VulDB): GCVE-100-165635

Entryinfo

Created: 12/06/2020 17:41
Updated: 12/13/2020 00:09
Changes: 12/06/2020 17:41 (19), 12/06/2020 17:44 (28), 12/13/2020 00:03 (5), 12/13/2020 00:09 (18)
Complete: 🔍
Cache ID: 216::103

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