Apple macOS up to 13.3 WebKit use after free

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.0$0-$5k0.00

A vulnerability was found in Apple macOS up to 13.3 (Operating System). It has been rated as critical. Affected by this issue is some unknown functionality of the component WebKit. The manipulation with an unknown input leads to a use after free vulnerability. Using CWE to declare the problem leads to CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. Impacted is confidentiality, integrity, and availability.

The weakness was published 05/18/2023 as HT213758 as confirmed advisory (Website). The advisory is available at support.apple.com. This vulnerability is handled as CVE-2023-32373. Successful exploitation requires user interaction by the victim. Technical details are unknown but an exploit is available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 04/28/2024). It is expected to see the exploit prices for this product increasing in the near future. The advisory points out:

Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited.

It is declared as highly functional. This issue was added on 05/22/2023 to the CISA Known Exploited Vulnerabilities Catalog with a due date of 06/12/2023:

Apply updates per vendor instructions.

Upgrading to version 13.4 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability. The advisory contains the following remark:

A use-after-free issue was addressed with improved memory management.

Similar entries are available at VDB-229489, VDB-229491, VDB-229529 and VDB-229557.

Productinfo

Type

Vendor

Name

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: 6.3
VulDB Meta Temp Score: 6.0

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

CVSSv2info

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

Exploitinginfo

Class: Use after free
CWE: CWE-416 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Local: No
Remote: Yes

Availability: 🔒
Status: Highly functional

EPSS Score: 🔒
EPSS Percentile: 🔒

KEV Added: 🔒
KEV Due: 🔒
KEV Remediation: 🔒
KEV Ransomware: 🔒
KEV Notice: 🔒

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 13.4

Timelineinfo

05/08/2023 CVE reserved
05/18/2023 +10 days Advisory disclosed
05/18/2023 +0 days Countermeasure disclosed
05/20/2023 +2 days VulDB entry created
04/28/2024 +344 days VulDB entry last update

Sourcesinfo

Vendor: apple.com

Advisory: HT213758
Status: Confirmed

CVE: CVE-2023-32373 (🔒)
scip Labs: https://www.scip.ch/en/?labs.20180712
See also: 🔒

Entryinfo

Created: 05/20/2023 07:23
Updated: 04/28/2024 18:12
Changes: 05/20/2023 07:23 (18), 05/20/2023 07:26 (28), 06/14/2023 18:58 (1), 04/28/2024 18:12 (26)
Complete: 🔍
Cache ID: 18:35F:103

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