Apple Safari up to 16.2 WebKit memory corruption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.0$5k-$25k0.00

A vulnerability classified as critical was found in Apple Safari up to 16.2 (Web Browser). This vulnerability affects some unknown processing of the component WebKit. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The software 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. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was disclosed 01/23/2023 by YeongHyeon Choi as HT213600 as confirmed advisory (Website). The advisory is shared for download at support.apple.com. This vulnerability was named CVE-2023-23518. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 01/24/2023). The advisory points out:

Processing maliciously crafted web content may lead to arbitrary code execution

Upgrading to version 16.3 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability. The advisory contains the following remark:

The issue was addressed with improved memory handling.

Productinfo

Type

Vendor

Name

License

  • commercial

CPE 2.3info

CPE 2.2info

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.0

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

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

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

Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
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: Safari 16.3

Timelineinfo

01/23/2023 Advisory disclosed
01/23/2023 +0 days Countermeasure disclosed
01/24/2023 +1 days VulDB entry created
01/24/2023 +0 days VulDB last update

Sourcesinfo

Vendor: apple.com

Advisory: HT213600
Researcher: YeongHyeon Choi
Status: Confirmed

CVE: CVE-2023-23518 (🔒)

Entryinfo

Created: 01/24/2023 11:11 AM
Updated: 01/24/2023 11:15 AM
Changes: 01/24/2023 11:11 AM (19), 01/24/2023 11:15 AM (27)
Complete: 🔍

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