High severity8.8NVD Advisory· Published Aug 24, 2021· Updated Jun 17, 2026
CVE-2021-30936
CVE-2021-30936
Description
A use after free issue was addressed with improved memory management. 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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
59cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:*range: <15.2
- (no CPE)range: 15.2
cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*range: <15.2
- (no CPE)range: 15.2
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*+ 2 more
- cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*range: >=12.0,<12.1
- (no CPE)range: 12.1
- (no CPE)range: unspecified
cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*range: <15.2
- (no CPE)range: 15.2
cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*+ 2 more
- cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*range: <8.3
- (no CPE)range: 8.3
- (no CPE)range: unspecified
- cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
- Range: 15.2
- osv-coords41 versionspkg:rpm/almalinux/webkit2gtk3pkg:rpm/almalinux/webkit2gtk3-develpkg:rpm/almalinux/webkit2gtk3-jscpkg:rpm/almalinux/webkit2gtk3-jsc-develpkg:rpm/opensuse/webkit2gtk3&distro=openSUSE%20Leap%2015.3pkg:rpm/suse/webkit2gtk3&distro=HPE%20Helion%20OpenStack%208pkg:rpm/suse/webkit2gtk3&distro=SUSE%20Enterprise%20Storage%206pkg:rpm/suse/webkit2gtk3&distro=SUSE%20Enterprise%20Storage%207pkg:rpm/suse/webkit2gtk3&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-ESPOSpkg:rpm/suse/webkit2gtk3&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-LTSSpkg:rpm/suse/webkit2gtk3&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP2-ESPOSpkg:rpm/suse/webkit2gtk3&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP2-LTSSpkg:rpm/suse/webkit2gtk3&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-ESPOSpkg:rpm/suse/webkit2gtk3&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-LTSSpkg:rpm/suse/webkit2gtk3&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP3pkg:rpm/suse/webkit2gtk3&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Desktop%20Applications%2015%20SP3pkg:rpm/suse/webkit2gtk3&distro=SUSE%20Linux%20Enterprise%20Real%20Time%2015%20SP2pkg:rpm/suse/webkit2gtk3&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-BCLpkg:rpm/suse/webkit2gtk3&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-BCLpkg:rpm/suse/webkit2gtk3&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-LTSSpkg:rpm/suse/webkit2gtk3&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4-LTSSpkg:rpm/suse/webkit2gtk3&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5pkg:rpm/suse/webkit2gtk3&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-BCLpkg:rpm/suse/webkit2gtk3&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-LTSSpkg:rpm/suse/webkit2gtk3&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP2-BCLpkg:rpm/suse/webkit2gtk3&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP2-LTSSpkg:rpm/suse/webkit2gtk3&distro=SUSE%20Linux%20Enterprise%20Server%2015-LTSSpkg:rpm/suse/webkit2gtk3&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3pkg:rpm/suse/webkit2gtk3&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4pkg:rpm/suse/webkit2gtk3&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP5pkg:rpm/suse/webkit2gtk3&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015pkg:rpm/suse/webkit2gtk3&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP1pkg:rpm/suse/webkit2gtk3&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP2pkg:rpm/suse/webkit2gtk3&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP5pkg:rpm/suse/webkit2gtk3&distro=SUSE%20Manager%20Proxy%204.1pkg:rpm/suse/webkit2gtk3&distro=SUSE%20Manager%20Retail%20Branch%20Server%204.1pkg:rpm/suse/webkit2gtk3&distro=SUSE%20Manager%20Server%204.1pkg:rpm/suse/webkit2gtk3&distro=SUSE%20OpenStack%20Cloud%208pkg:rpm/suse/webkit2gtk3&distro=SUSE%20OpenStack%20Cloud%209pkg:rpm/suse/webkit2gtk3&distro=SUSE%20OpenStack%20Cloud%20Crowbar%208pkg:rpm/suse/webkit2gtk3&distro=SUSE%20OpenStack%20Cloud%20Crowbar%209
< 2.34.6-1.el8+ 40 more
- (no CPE)range: < 2.34.6-1.el8
- (no CPE)range: < 2.34.6-1.el8
- (no CPE)range: < 2.34.6-1.el8
- (no CPE)range: < 2.34.6-1.el8
- (no CPE)range: < 2.34.6-29.1
- (no CPE)range: < 2.34.5-2.85.3
- (no CPE)range: < 2.34.6-3.97.1
- (no CPE)range: < 2.34.6-29.1
- (no CPE)range: < 2.34.6-3.97.1
- (no CPE)range: < 2.34.6-3.97.1
- (no CPE)range: < 2.34.6-29.1
- (no CPE)range: < 2.34.6-29.1
- (no CPE)range: < 2.34.6-3.97.1
- (no CPE)range: < 2.34.6-3.97.1
- (no CPE)range: < 2.34.6-29.1
- (no CPE)range: < 2.34.6-29.1
- (no CPE)range: < 2.34.6-29.1
- (no CPE)range: < 2.34.5-2.85.3
- (no CPE)range: < 2.34.5-2.85.3
- (no CPE)range: < 2.34.5-2.85.3
- (no CPE)range: < 2.34.5-2.85.3
- (no CPE)range: < 2.34.5-2.85.3
- (no CPE)range: < 2.34.6-3.97.1
- (no CPE)range: < 2.34.6-3.97.1
- (no CPE)range: < 2.34.6-29.1
- (no CPE)range: < 2.34.6-29.1
- (no CPE)range: < 2.34.6-3.97.1
- (no CPE)range: < 2.34.5-2.85.3
- (no CPE)range: < 2.34.5-2.85.3
- (no CPE)range: < 2.34.5-2.85.3
- (no CPE)range: < 2.34.6-3.97.1
- (no CPE)range: < 2.34.6-3.97.1
- (no CPE)range: < 2.34.6-29.1
- (no CPE)range: < 2.34.5-2.85.3
- (no CPE)range: < 2.34.6-29.1
- (no CPE)range: < 2.34.6-29.1
- (no CPE)range: < 2.34.6-29.1
- (no CPE)range: < 2.34.5-2.85.3
- (no CPE)range: < 2.34.5-2.85.3
- (no CPE)range: < 2.34.5-2.85.3
- (no CPE)range: < 2.34.5-2.85.3
- Range: unspecified
Patches
Vulnerability mechanics
References
10- www.openwall.com/lists/oss-security/2022/01/21/2nvd
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7EQVZ3CEMTINLBZ7PBC7WRXVEVCRHNSM/nvd
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HQKWD4BXRDD2YGR5AVU7H5J5PIQIEU6V/nvd
- support.apple.com/en-us/HT212975nvd
- support.apple.com/en-us/HT212976nvd
- support.apple.com/en-us/HT212978nvd
- support.apple.com/en-us/HT212980nvd
- support.apple.com/en-us/HT212982nvd
- www.debian.org/security/2022/dsa-5060nvd
- www.debian.org/security/2022/dsa-5061nvd
News mentions
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