CVE-2021-31004: Race Condition

Published Jul 21, 2021
·
Updated

A race condition was addressed with improved locking. This issue is fixed in macOS Monterey 12.0.1, macOS Big Sur 11.5. An application may be able to gain elevated privileges.

Other sources

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

— Apple

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

Csaba Fitzl@@theevilbit(Offensive Security), Denis Tokarev@@illusionofcha0s, hjy79425575(Trend Micro Zero Day Initiative), 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), Liu Long(Ant Security Light), Yinyi Wu@@3ndy1(Qihoo 360 Vulcan Team), 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

4 affected componentsFixes available
Apple macOS Big Sur<11.5
11.5
macOS<12.0.1
12.0.1
macOS>=11.0<11.5
macOS=12.0.0

Event History

Jul 21, 2021
Data Sourced
via Apple·12:00 AM
DescriptionWeaknessAffected Software
Updated
via Apple·12:00 AM
DescriptionWeakness
Aug 24, 2021
CVE Published
via MITRE·06:51 PM
Data Sourced
via MITRE·06:51 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-2021-31004?

CVE-2021-31004 is a vulnerability that involves a race condition which was addressed with improved locking.

2

Which software versions are affected by CVE-2021-31004?

CVE-2021-31004 affects macOS Big Sur up to version 11.5 and macOS Monterey up to version 12.0.1.

3

How can I fix CVE-2021-31004?

To fix CVE-2021-31004, update your macOS Big Sur to version 11.5 or update your macOS Monterey to version 12.0.1.

4

What is the severity of CVE-2021-31004?

The severity of CVE-2021-31004 is not specified in the provided information.

5

Where can I find more information about CVE-2021-31004?

You can find more information about CVE-2021-31004 on the Apple support pages: [https://support.apple.com/en-us/HT212602](https://support.apple.com/en-us/HT212602) and [https://support.apple.com/en-us/HT212869](https://support.apple.com/en-us/HT212869).

Company

Resources

Contact

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