CVE-2021-30952

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Summary

CVECVE-2021-30952
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2021-08-24 19:15:00 UTC
Updated2023-11-07 03:34:00 UTC
DescriptionAn integer overflow was addressed with improved input validation. This issue is fixed in tvOS 15.2, macOS Monterey 12.1, Safari 15.2, iOS 15.2 and iPadOS 15.2, watchOS 8.3. Processing maliciously crafted web content may lead to arbitrary code execution.

Risk And Classification

EPSS: 0.012790000 probability, percentile 0.795190000 (date 2026-04-01)

CISA KEV: Listed on 2026-03-05; due 2026-03-26; ransomware use Unknown

Problem Types: CWE-190

CISA Known Exploited Vulnerability

VendorApple
ProductMultiple Products
NameApple Multiple Products Integer Overflow or Wraparound Vulnerability
Required ActionApply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Noteshttps://support.apple.com/en-us/HT212975 ; https://support.apple.com/en-us/HT212976 ; https://support.apple.com/en-us/HT212978 ; https://support.apple.com/en-us/HT212980 ; https://support.apple.com/en-us/HT212982 ; https://nvd.nist.gov/vuln/detail/CVE-2021-30952

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Apple Ipados All All All All
Operating System Apple Iphone Os All All All All
Operating System Apple Macos All All All All
Application Apple Safari All All All All
Operating System Apple Tvos All All All All
Operating System Apple Watchos All All All All
Operating System Debian Debian Linux 10.0 All All All
Operating System Debian Debian Linux 11.0 All All All
Operating System Fedoraproject Fedora 34 All All All
Operating System Fedoraproject Fedora 35 All All All

References

ReferenceSourceLinkTags
[SECURITY] Fedora 34 Update: webkit2gtk3-2.34.4-1.fc34 - package-announce - Fedora Mailing-Lists lists.fedoraproject.org
oss-security - WebKitGTK and WPE WebKit Security Advisory WSA-2022-0001 www.openwall.com
Debian -- Security Information -- DSA-5061-1 wpewebkit www.debian.org
About the security content of iOS 15.2 and iPadOS 15.2 - Apple Support MISC support.apple.com
About the security content of tvOS 15.2 - Apple Support support.apple.com
About the security content of Safari 15.2 - Apple Support support.apple.com
About the security content of watchOS 8.3 - Apple Support MISC support.apple.com
[SECURITY] Fedora 34 Update: webkit2gtk3-2.34.4-1.fc34 - package-announce - Fedora Mailing-Lists FEDORA lists.fedoraproject.org
[SECURITY] Fedora 35 Update: webkit2gtk3-2.34.4-2.fc35 - package-announce - Fedora Mailing-Lists lists.fedoraproject.org
About the security content of macOS Monterey 12.1 - Apple Support support.apple.com
Debian -- Security Information -- DSA-5060-1 webkit2gtk DEBIAN www.debian.org
[SECURITY] Fedora 35 Update: webkit2gtk3-2.34.4-2.fc35 - package-announce - Fedora Mailing-Lists FEDORA lists.fedoraproject.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
CISA Known Exploited Vulnerabilities catalog CISA www.cisa.gov kev

Legacy QID Mappings

  • 159799 Oracle Enterprise Linux Security Update for webkit2gtk3 (ELSA-2022-1777)
  • 179031 Debian Security Update for wpewebkit (DSA 5061-1)
  • 179032 Debian Security Update for webkit2gtk (DSA 5060-1)
  • 183400 Debian Security Update for webkit2gtkwpewebkit (CVE-2021-30952)
  • 198648 Ubuntu Security Notification for WebKitGTK Vulnerabilities (USN-5255-1)
  • 240305 Red Hat Update for webkit2gtk3 security (RHSA-2022:1777)
  • 282274 Fedora Security Update for webkit2gtk3 (FEDORA-2022-25a98f5d55)
  • 282347 Fedora Security Update for webkit2gtk3 (FEDORA-2022-f7366e60cb)
  • 296063 Oracle Solaris 11.4 Support Repository Update (SRU) 45.119.2 Missing (CPUAPR2022)
  • 355438 Amazon Linux Security Advisory for webkitgtk4 : ALAS2-2023-2088
  • 376172 Apple Safari Multiple Vulnerabilities (HT212982)
  • 376180 Apple MacOS Monterey 12.1 Not Installed (HT212978)
  • 502397 Alpine Linux Security Update for webkit2gtk
  • 505526 Alpine Linux Security Update for webkit2gtk
  • 610393 Apple iOS 15.2 and iPadOS 15.2 Security Update Missing
  • 710570 Gentoo Linux WebkitGTK+ Multiple Vulnerabilities (GLSA 202202-01)
  • 751784 SUSE Enterprise Linux Security Update for webkit2gtk3 (SUSE-SU-2022:0703-1)
  • 751790 SUSE Enterprise Linux Security Update for webkit2gtk3 (SUSE-SU-2022:0690-1)
  • 751794 SUSE Enterprise Linux Security Update for webkit2gtk3 (SUSE-SU-2022:0705-1)
  • 751823 OpenSUSE Security Update for webkit2gtk3 (openSUSE-SU-2022:0705-1)
  • 940505 AlmaLinux Security Update for webkit2gtk3 (ALSA-2022:1777)
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