Apple macOS up to 11.3 Intel Graphics Driver out-of-bounds write

| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 7.5 | $0-$5k | 0.00 |
Summary
A vulnerability was found in Apple macOS up to 11.3 and classified as critical. This issue affects some unknown processing of the component Intel Graphics Driver. Such manipulation leads to out-of-bounds write. This vulnerability is listed as CVE-2021-30728. The attack must be carried out locally. There is no available exploit. It is suggested to upgrade the affected component.
Details
A vulnerability, which was classified as critical, has been found in Apple macOS up to 11.3 (Operating System). Affected by this issue is an unknown code of the component Intel Graphics Driver. 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 presented 05/24/2021 by Liu Long as HT212529 as confirmed advisory (Website). The advisory is available at support.apple.com. This vulnerability is handled as CVE-2021-30728. The technical details are unknown and an exploit is not available. The advisory points out:
A malicious application may be able to execute arbitrary code with kernel privileges
Upgrading to version 11.4 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 issue was addressed with improved bounds checking.
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Product
Type
Vendor
Name
Version
License
Website
- Vendor: https://www.apple.com/
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 7.8VulDB Meta Temp Score: 7.5
VulDB Base Score: 7.8
VulDB Temp Score: 7.5
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv2
| AV | AC | Au | C | I | A |
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| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
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| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
Exploiting
Class: Out-of-bounds writeCWE: CWE-787 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍
Physical: Partially
Local: Yes
Remote: No
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
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Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍
Upgrade: macOS 11.4
Timeline
04/13/2021 🔍05/24/2021 🔍
05/24/2021 🔍
05/25/2021 🔍
05/28/2021 🔍
Sources
Vendor: apple.comAdvisory: HT212529
Researcher: Liu Long
Status: Confirmed
CVE: CVE-2021-30728 (🔍)
GCVE (CVE): GCVE-0-2021-30728
GCVE (VulDB): GCVE-100-175718
scip Labs: https://www.scip.ch/en/?labs.20180712
Entry
Created: 05/25/2021 12:49Updated: 05/28/2021 12:08
Changes: 05/25/2021 12:49 (19), 05/25/2021 12:52 (28), 05/28/2021 12:08 (4)
Complete: 🔍
Cache ID: 216::103
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