CVE-2021-30766: Input Validation

Published Jul 21, 2021
·
Updated

AMD Kernel. A memory corruption issue was addressed with improved input validation.

Other sources

An out-of-bounds write was addressed with improved input validation. This issue is fixed in macOS Big Sur 11.5, Security Update 2021-004 Catalina, Security Update 2021-005 Mojave. An application may be able to execute arbitrary code with kernel privileges.

— MITRE

Analytics. A logic issue was addressed with improved restrictions.

— Apple

App Store. A permissions issue was addressed with improved validation.

— Apple

AppKit. An information disclosure issue was addressed by removing the vulnerable code.

— Apple

Audio. This issue was addressed with improved checks.

— Apple

Credit

Liu Long(Ant Security Light), Yinyi Wu@@3ndy1(Qihoo 360 Vulcan Team), Denis Tokarev@@illusionofcha0s, hjy79425575(Trend Micro Zero Day Initiative), Csaba Fitzl@@theevilbit(Offensive Security), tr3e, George Nosenko, JunDong Xie(Ant Security Light), ryuzaki, Zhongcheng Li (CK01), Ron Waisberg@@epsilan, Tim Michaud@@TimGMichaud(Zoom Video Communications), Gary Nield(ECSC Group plc), Mickey Jin@@patch1t(Trend Micro), Sunglin(Knownsec 404 team), Yizhuo Wang(Group of Software Security In Progress), Linus Henze (pinauten.de), Wojciech Reguła@@_r3ggi(SecuRing), tr3e(Trend Micro Zero Day Initiative), Matt Shockley (twitter.com/mattshockl)(Offensive Security), Jzhu(Baidu Security), Ye Zhang@@co0py_Cat(Baidu Security), CFF(Topsec Alpha Team), Anonymous(Trend Micro Zero Day Initiative), Zuozhi Fan@@pattern_F_(Ant Security TianQiong Lab), CVE-2021-3518, Georgi Valkov (httpstorm.com), Mickey Jin@@patch1t(Trend Micro working with Trend Micro Zero Day Initiative), Christoph Guttandin(Media Codings), Sergei Glazunov(Google Project Zero), Ivan Fratric(Google Project Zero), ABC Research s.r.o

Affected Software

35 affected componentsFixes available
Apple macOS Big Sur<11.5
11.5
Apple Catalina
Apple Mojave
Apple iOS and macOS>=10.14<=10.14.5
Apple iOS and macOS>=10.15<=10.15.6
Apple iOS and macOS=10.14.6
Apple iOS and macOS=10.14.6-security_update_2019-001
Apple iOS and macOS=10.14.6-security_update_2019-002
Apple iOS and macOS=10.14.6-security_update_2019-004
Apple iOS and macOS=10.14.6-security_update_2019-005
Apple iOS and macOS=10.14.6-security_update_2019-006
Apple iOS and macOS=10.14.6-security_update_2019-007
Apple iOS and macOS=10.14.6-security_update_2020-001
Apple iOS and macOS=10.14.6-security_update_2020-002
Apple iOS and macOS=10.14.6-security_update_2020-003
Apple iOS and macOS=10.14.6-security_update_2020-004
Apple iOS and macOS=10.14.6-security_update_2020-005
Apple iOS and macOS=10.14.6-security_update_2020-006
Apple iOS and macOS=10.14.6-security_update_2020-007
Apple iOS and macOS=10.14.6-security_update_2021-001
Apple iOS and macOS=10.14.6-security_update_2021-002
Apple iOS and macOS=10.14.6-security_update_2021-003
Apple iOS and macOS=10.14.6-security_update_2021-004
Apple iOS and macOS=10.14.6-supplemental_update
Apple iOS and macOS=10.14.6-supplemental_update_2
Apple iOS and macOS=10.15.7
Apple iOS and macOS=10.15.7-security_update_2020
Apple iOS and macOS=10.15.7-security_update_2020-001
Apple iOS and macOS=10.15.7-security_update_2020-005
Apple iOS and macOS=10.15.7-security_update_2020-007
Apple iOS and macOS=10.15.7-security_update_2021-001
Apple iOS and macOS=10.15.7-security_update_2021-002
Apple iOS and macOS=10.15.7-security_update_2021-003
Apple iOS and macOS=10.15.7-supplemental_update
Apple macOS>=11.0<11.5

Event History

Jul 21, 2021
Data Sourced
via Apple·12:00 AM
DescriptionWeaknessAffected Software
Updated
via Apple·12:00 AM
DescriptionWeakness
Sep 8, 2021
CVE Published
via MITRE·01:46 PM
Data Sourced
via MITRE·01:46 PM
DescriptionWeakness

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

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Frequently Asked Questions

1

What is CVE-2021-30766?

CVE-2021-30766 is a vulnerability in the Intel Graphics Driver that allows an attacker to perform an out-of-bounds write.

2

How does Intel Graphics Driver vulnerability CVE-2021-30766 affect Apple Mojave?

Apple Mojave is affected by the Intel Graphics Driver vulnerability CVE-2021-30766 and requires the appropriate security update from Apple to address the issue.

3

What is the severity of vulnerability CVE-2021-30766?

The severity of vulnerability CVE-2021-30766 is not specified in the provided information. Refer to the official vulnerability report or the vendor's advisory for more details.

4

How can I fix the Intel Graphics Driver vulnerability CVE-2021-30766 on Apple macOS Big Sur 11.5?

To fix the Intel Graphics Driver vulnerability CVE-2021-30766 on Apple macOS Big Sur 11.5, update to the latest version of the operating system provided by Apple.

5

Where can I find more information about the Intel Graphics Driver vulnerability CVE-2021-30766?

You can find more information about the Intel Graphics Driver vulnerability CVE-2021-30766 in the references provided: [link1](https://support.apple.com/en-us/HT212600), [link2](https://support.apple.com/en-us/HT212602), [link3](https://support.apple.com/en-us/HT212603).

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