CVE-2021-30977
published 2021-08-24CVE-2021-30977: A buffer overflow was addressed with improved bounds checking. This issue is fixed in macOS Monterey 12.1, Security Update 2021-008 Catalina, macOS Big Sur…
PriorityP341high7.8CVSS 3.1
AVLACLPRNUIRSUCHIHAH
EPSS
1.52%
71.9th percentile
A buffer overflow was addressed with improved bounds checking. This issue is fixed in macOS Monterey 12.1, Security Update 2021-008 Catalina, macOS Big Sur 11.6.2. A malicious application may be able to execute arbitrary code with kernel privileges.
Affected
11 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| apple | mac_os_x | — | — |
| apple | mac_os_x | >= 10.15 < 10.15.7 | 10.15.7 |
| apple | macos | >= 11.0 < 11.6.2 | 11.6.2 |
| apple | macos | >= 12.0 < 12.3 | 12.3 |
| apple | macos | >= unspecified < 12.1 | 12.1 |
| apple | macos | >= unspecified < 11.6 | 11.6 |
| apple | macos | >= unspecified < 2021 | 2021 |
| apple | macos_big_sur | — | — |
| apple | macos_monterey | — | — |
| apple | macos_monterey | — | — |
| apple | security_update_2021-008_catalina | — | — |
CVSS provenance
nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
nvdv2.09.3CRITICALAV:N/AC:M/Au:N/C:C/I:C/A:C
Stop checking back — get the weekly exploitation signal.
Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.
Apple
CVE-2021-30977: macOS Monterey 12.3
vendor_apple·2022-03-14·CVSS 7.8
CVE-2021-30977 [HIGH] CVE-2021-30977: macOS Monterey 12.3
Apple Security Update: About the security content of macOS Monterey 12.3
Product: macOS Monterey
Version: 12.3
CVE: CVE-2021-30977
Component: Graphics Drivers
Impact: A malicious application may be able to execute arbitrary code with kernel privileges
Description: A buffer overflow was addressed with improved bounds checking.
Apple
CVE-2021-30977: Security Update 2021-008 Catalina
vendor_apple·2021-12-13·CVSS 7.8
CVE-2021-30977 [HIGH] CVE-2021-30977: Security Update 2021-008 Catalina
Apple Security Update: About the security content of Security Update 2021-008 Catalina
Product: Security Update 2021-008 Catalina
CVE: CVE-2021-30977
Component: Graphics Drivers
Impact: A malicious application may be able to execute arbitrary code with kernel privileges
Description: A buffer overflow was addressed with improved bounds checking.
Apple
CVE-2021-30977: macOS Big Sur 11.6.2
vendor_apple·2021-12-13·CVSS 7.8
CVE-2021-30977 [HIGH] CVE-2021-30977: macOS Big Sur 11.6.2
Apple Security Update: About the security content of macOS Big Sur 11.6.2
Product: macOS Big Sur
Version: 11.6.2
CVE: CVE-2021-30977
Component: Graphics Drivers
Impact: A malicious application may be able to execute arbitrary code with kernel privileges
Description: A buffer overflow was addressed with improved bounds checking.
Apple
CVE-2021-30977: macOS Monterey 12.1
vendor_apple·2021-12-13·CVSS 7.8
CVE-2021-30977 [HIGH] CVE-2021-30977: macOS Monterey 12.1
Apple Security Update: About the security content of macOS Monterey 12.1
Product: macOS Monterey
Version: 12.1
CVE: CVE-2021-30977
Component: Graphics Drivers
Impact: A malicious application may be able to execute arbitrary code with kernel privileges
Description: A buffer overflow was addressed with improved bounds checking.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
https://support.apple.com/en-us/HT212978https://support.apple.com/en-us/HT212979https://support.apple.com/en-us/HT212981https://support.apple.com/kb/HT213183https://support.apple.com/en-us/HT212978https://support.apple.com/en-us/HT212979https://support.apple.com/en-us/HT212981https://support.apple.com/kb/HT213183
2021-08-24
Published