Apple iCloud up to 7.11 on Windows WebKit memory corruption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.4$0-$5k0.00

A vulnerability, which was classified as critical, has been found in Apple iCloud up to 7.11 on Windows (Cloud Software). Affected by this issue is an unknown functionality of the component WebKit. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is confidentiality, integrity, and availability.

The bug was discovered 05/13/2019. The weakness was shared 05/28/2019 by G. Geshev with Zero Day Initiative as HT210125 as confirmed advisory (Website). The advisory is available at support.apple.com. This vulnerability is handled as CVE-2019-8595 since 02/18/2019. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. The advisory points out:

Multiple memory corruption issues were addressed with improved memory handling.

The vulnerability was handled as a non-public zero-day exploit for at least 15 days. During that time the estimated underground price was around $5k-$25k. The commercial vulnerability scanner Qualys is able to test this issue with plugin 197471 (Ubuntu Security Notification for Webkit2gtk Vulnerabilities (USN-3992-1)).

Upgrading to version 7.12 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The entries 134875, 134883, 134888 and 134910 are related to this item.

Productinfo

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Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.4

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Qualys ID: 🔍
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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 7.12

Timelineinfo

02/18/2019 🔍
05/13/2019 +84 days 🔍
05/28/2019 +15 days 🔍
05/28/2019 +0 days 🔍
06/02/2019 +5 days 🔍
09/25/2023 +1576 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT210125
Researcher: G. Geshev
Organization: Zero Day Initiative
Status: Confirmed

CVE: CVE-2019-8595 (🔍)
See also: 🔍

Entryinfo

Created: 06/02/2019 18:12
Updated: 09/25/2023 16:26
Changes: 06/02/2019 18:12 (66), 06/18/2020 10:09 (3), 09/25/2023 16:26 (4)
Complete: 🔍

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