CVE-2021-30799

medium

Published 2021-11-09 · Modified 2021-11-09

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CVSS v3

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CVSS v4 NEW

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not yet in upstream

VIR risk

5.5

Description

Multiple memory corruption issues were addressed with improved memory handling. This issue is fixed in iOS 14.7, macOS Big Sur 11.5, Security Update 2021-004 Catalina, Security Update 2021-005 Mojave. Processing maliciously crafted web content may lead to arbitrary code execution.

Predictions

Exploit likelihood

20%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

Mitigation details

Source: Red Hat Errata — Red Hat Inc. · View original ↗ · Open-Errata-API

Description webkitgtk: Memory corruptions leading to arbitrary code execution CVSS v3: 8.8 (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H) Errata / fixed releases ProductPackageAdvisoryReleased Red Hat Enterprise Linux 7 Extended Lifecycle Supportwebkitgtk4-0:2.48.3-2.el7_9RHSA-2025:103642025-07-07T00:00:00Z Red Hat Enterprise Linux 8webkit2gtk3-0:2.32.3-2.el8RHSA-2021:43812021-11-09T00:00:00Z…

Description

webkitgtk: Memory corruptions leading to arbitrary code execution

CVSS v3: 8.8 (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)

Errata / fixed releases

Product	Package	Advisory	Released
Red Hat Enterprise Linux 7 Extended Lifecycle Support	`webkitgtk4-0:2.48.3-2.el7_9`	RHSA-2025:10364	2025-07-07T00:00:00Z
Red Hat Enterprise Linux 8	`webkit2gtk3-0:2.32.3-2.el8`	RHSA-2021:4381	2021-11-09T00:00:00Z

Package state

Product	Package	State
Red Hat Enterprise Linux 6	`webkitgtk`	Out of support scope
Red Hat Enterprise Linux 7	`webkitgtk3`	Out of support scope
Red Hat Enterprise Linux 9	`webkit2gtk3`	Not affected

Apply commands

bash fix

Apply RHSA-2025:10364 for Red Hat Enterprise Linux 7 Extended Lifecycle Support

yum update -y webkitgtk4
# or:
dnf upgrade -y webkitgtk4

Affected

Vendor	Product	Version
redhat	Red Hat Enterprise Linux 9	`Not affected`

OS impact

AlmaLinux Fixed 1 release

Version	Status	Fixed in
8	Fixed	`gnome-online-accounts-devel-3.28.2-3.el8.x86_64.rpm`

Arch Fixed 1 release

Version	Status	Fixed in
—	Fixed	`2.32.3-1`

Debian Fixed 5 releases

Version	Status	Fixed in
trixie	Fixed	`2.32.3-1`
sid	Fixed	`2.32.3-1`
forky	Fixed	`2.32.3-1`
bullseye	Fixed	`2.32.3-1`
bookworm	Fixed	`2.32.3-1`

Red Hat Fixed 1 release

Version	Status	Fixed in
8	Fixed	—

Rocky Linux Fixed 1 release

Version	Status	Fixed in
8	Fixed	—

References

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.