Apple macOS up to 13.4.1 Kernel memory corruption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.6$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in Apple macOS up to 13.4.1. Affected by this vulnerability is an unknown functionality of the component Kernel. The manipulation results in memory corruption. This vulnerability is identified as CVE-2023-38261. The attack is only possible with local access. There is not any exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Apple macOS up to 13.4.1 (Operating System). It has been classified as critical. Affected is some unknown functionality of the component Kernel. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was released 07/24/2023 as HT213843 as confirmed advisory (Website). The advisory is shared for download at support.apple.com. This vulnerability is traded as CVE-2023-38261. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 08/18/2023). It is expected to see the exploit prices for this product increasing in the near future. The advisory points out:

An app may be able to execute arbitrary code with kernel privileges

Upgrading to version 13.5 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.

Once again VulDB remains the best source for vulnerability data.

Productinfo

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Name

Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.8
VulDB Meta Temp Score: 7.6

VulDB Base Score: 7.8
VulDB Temp Score: 7.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

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
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Partially

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 13.5

Timelineinfo

07/20/2023 🔍
07/24/2023 +4 days 🔍
07/24/2023 +0 days 🔍
07/25/2023 +1 days 🔍
08/18/2023 +24 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT213843
Status: Confirmed

CVE: CVE-2023-38261 (🔍)
GCVE (CVE): GCVE-0-2023-38261
GCVE (VulDB): GCVE-100-235356
scip Labs: https://www.scip.ch/en/?labs.20180712

Entryinfo

Created: 07/25/2023 12:20
Updated: 08/18/2023 08:59
Changes: 07/25/2023 12:20 (18), 07/25/2023 12:23 (28), 08/18/2023 08:57 (2), 08/18/2023 08:59 (10)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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