CVE-2021-30758: Input Validation

Published Jul 19, 2021
·
Updated

A type confusion issue was addressed with improved state handling.

Other sources

ActionKit. An input validation issue was addressed with improved input validation.

— Apple

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

— Apple

Analytics. A logic issue was addressed with improved restrictions.

— Apple

Analytics. This issue was addressed with a new entitlement.

— Apple

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

— Apple

Credit

Christoph Guttandin(Media Codings), Zachary Keffaber@@QuickUpdate5, Denis Tokarev@@illusionofcha0s, tr3e, George Nosenko, JunDong Xie(Ant Security Light), ryuzaki, Mickey Jin@@patch1t(Trend Micro), Sunglin(Knownsec 404 team), Yizhuo Wang(Group of Software Security In Progress), Tim Michaud@@TimGMichaud(Zoom Video Communications), Linus Henze (pinauten.de), Csaba Fitzl@@theevilbit(Offensive Security), tr3e(Trend Micro Zero Day Initiative), hjy79425575(Trend Micro Zero Day Initiative), Matthew Denton(Google Chrome Security), Jzhu(Baidu Security), Ye Zhang@@co0py_Cat(Baidu Security), CFF(Topsec Alpha Team), CVE-2021-3518, CVE-2018-25010, CVE-2018-25011, CVE-2018-25014, CVE-2020-36328, CVE-2020-36329, CVE-2020-36330, CVE-2020-36331, Anonymous(Trend Micro Zero Day Initiative), Sergei Glazunov(Google Project Zero), Ivan Fratric(Google Project Zero), vm_call, Nozhdar Abdulkhaleq Shukri, Mickey Jin@@patch1t(Trend Micro working with Trend Micro Zero Day Initiative), Georgi Valkov (httpstorm.com), Zhongcheng Li (CK01), Ron Waisberg@@epsilan, Gary Nield(ECSC Group plc), Wojciech Reguła@@_r3ggi(SecuRing), Matt Shockley (twitter.com/mattshockl)(Offensive Security), Liu Long(Ant Security Light), Yinyi Wu@@3ndy1(Qihoo 360 Vulcan Team), Zuozhi Fan@@pattern_F_(Ant Security TianQiong Lab), ABC Research s.r.o

Affected Software

21 affected componentsFixes available
debian/webkit2gtk
2.36.4-1~deb10u12.38.6-0+deb10u12.40.5-1~deb11u12.42.1-1~deb11u22.40.5-1~deb12u12.42.1-1~deb12u12.42.1-2
debian/wpewebkit
2.38.6-1~deb11u12.38.6-12.42.1-1
Apple macOS Big Sur<11.5
11.5
Apple tvOS<14.7
14.7
Apple WatchOS<7.6
7.6
Apple Safari<14.1.2
14.1.2
Apple Safari<14.1.2
Apple iPhone OS<14.7
Apple macOS<11.5
Apple tvOS<14.7
Apple WatchOS<7.6
redhat/webkitgtk<2.32.2
2.32.2
Apple iOS<14.7
14.7
Apple iPadOS<14.7
14.7
alpine/webkit2gtk<2.32.2-r0
2.32.2-r0
alpine/webkit2gtk<2.32.2-r0
2.32.2-r0
alpine/webkit2gtk<2.32.2-r0
2.32.2-r0
alpine/webkit2gtk<2.32.2-r0
2.32.2-r0
alpine/webkit2gtk<2.32.2-r0
2.32.2-r0
alpine/webkit2gtk<2.32.2-r0
2.32.2-r0
alpine/webkit2gtk<2.32.2-r0
2.32.2-r0

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade debian/webkit2gtk to a version that resolves this vulnerability.

    Fixed in 2.36.4-1~deb10u1Fixed in 2.38.6-0+deb10u1Fixed in 2.40.5-1~deb11u1Fixed in 2.42.1-1~deb11u2Fixed in 2.40.5-1~deb12u1Fixed in 2.42.1-1~deb12u1Fixed in 2.42.1-2
  2. Upgrade

    Upgrade debian/wpewebkit to a version that resolves this vulnerability.

    Fixed in 2.38.6-1~deb11u1Fixed in 2.38.6-1Fixed in 2.42.1-1
  3. Upgrade

    Upgrade Apple macOS to a version that resolves this vulnerability.

    Fixed in 11.5
  4. Upgrade

    Upgrade tvOS to a version that resolves this vulnerability.

    Fixed in 14.7
  5. Upgrade

    Upgrade Apple iOS, iPadOS, and watchOS to a version that resolves this vulnerability.

    Fixed in 7.6
  6. Upgrade

    Upgrade Safari to a version that resolves this vulnerability.

    Fixed in 14.1.2
  7. Upgrade

    Upgrade redhat/webkitgtk to a version that resolves this vulnerability.

    Fixed in 2.32.2
  8. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 11.5
  9. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 14.7
  10. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 7.6
  11. Upgrade

    Upgrade alpine/webkit2gtk to a version that resolves this vulnerability.

    Fixed in 2.32.2-r0
  12. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 1.2.0
  13. Upgrade

    Upgrade iOS to a version that resolves this vulnerability.

    Fixed in 14.7
  14. Upgrade

    Upgrade macOS Big Sur to a version that resolves this vulnerability.

    Fixed in 11.5
  15. Upgrade

    Upgrade watchOS to a version that resolves this vulnerability.

    Fixed in 7.6

Event History

Jul 19, 2021
Data Sourced
via Apple·12:00 AM
DescriptionWeaknessAffected Software
Jul 28, 2021
Data Sourced
via Red Hat·01:44 PM
DescriptionSeverityAffected Software
Sep 8, 2021
CVE Published
via MITRE·01:46 PM
Data Sourced
via MITRE·01:46 PM
DescriptionWeakness
Data Sourced
via NVD·02:15 PM
DescriptionSeverityWeaknessAffected Software
Data Sourced
via OSV·02:15 PM
DescriptionSeverityAffected Software

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

Frequently Asked Questions

1

What is CVE-2021-30758?

CVE-2021-30758 is a type confusion issue in WebKit that has been addressed with improved state handling.

2

Which software is affected by CVE-2021-30758?

The following software is affected by CVE-2021-30758: macOS Big Sur (up to version 11.5), Safari (up to version 14.1.2), watchOS (up to version 7.6), and tvOS (up to version 14.7).

3

How can I fix the CVE-2021-30758 vulnerability?

To fix the CVE-2021-30758 vulnerability, you should update your affected software to the latest available version. Please refer to the vendor's official support page for more information.

4

Where can I find more information about CVE-2021-30758?

You can find more information about CVE-2021-30758 on Apple's support page at the following URLs: [support.apple.com/en-us/HT212605](https://support.apple.com/en-us/HT212605), [support.apple.com/en-us/HT212604](https://support.apple.com/en-us/HT212604), [support.apple.com/en-us/HT212602](https://support.apple.com/en-us/HT212602).

5

Is CVE-2021-30758 a critical vulnerability?

The severity of CVE-2021-30758 has not been mentioned. Please refer to the vendor's official support page or security advisories for more information.

Company

Resources

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