Summary
A large number of security issues were discovered in the WebKitGTK Web and
JavaScript engines. If a user were tricked into viewing a malicious
website, a remote attacker could exploit a variety of issues related to web
browser security, including cross-site scripting attacks, denial of service
attacks, and arbitrary code execution.
Fixed packages 1
| Release | Package | Fixed in |
|---|---|---|
| Ubuntu · 20.04 LTS 20.04:LTS | webkit2gtk | 2.34.4-0ubuntu0.20.04.1 |
Vulnerabilities 7
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High 8.8CVE-2021-30952 Exploited
An integer overflow was addressed with improved input validation. This issue is fixed in tvOS 15.2, macOS Monterey 12.1…
KEV Mar 5, 2026 -
Unscored —
A buffer overflow issue was addressed with improved memory handling. This issue is fixed in tvOS 15.2, macOS Monterey 1…
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Unscored —
A use after free issue was addressed with improved memory management. This issue is fixed in tvOS 15.2, macOS Monterey …
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Unscored —
A use after free issue was addressed with improved memory management. This issue is fixed in tvOS 15.2, macOS Monterey …
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Unscored —
An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in tvOS 15.2, macOS Monterey 12.…
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Unscored —
A type confusion issue was addressed with improved memory handling. This issue is fixed in tvOS 15.2, macOS Monterey 12…
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Unscored —
A race condition was addressed with improved state handling. This issue is fixed in tvOS 15.2, macOS Monterey 12.1, Saf…
References
-
report
https://ubuntu.com/security/CVE-2021-30934
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report
https://ubuntu.com/security/CVE-2021-30936
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report
https://ubuntu.com/security/CVE-2021-30951
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report
https://ubuntu.com/security/CVE-2021-30952
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report
https://ubuntu.com/security/CVE-2021-30953
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report
https://ubuntu.com/security/CVE-2021-30954
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report
https://ubuntu.com/security/CVE-2021-30984