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CVE-2021-21779

Status Candidate

Overview

A use-after-free vulnerability exists in the way Webkit’s GraphicsContext handles certain events in WebKitGTK 2.30.4. A specially crafted web page can lead to a potential information leak and further memory corruption. A victim must be tricked into visiting a malicious web page to trigger this vulnerability.

Related Files

Apple Security Advisory 2021-05-25-6
Posted May 26, 2021
Authored by Apple | Site apple.com

Apple Security Advisory 2021-05-25-6 - watchOS 7.5 addresses buffer overflow, code execution, cross site scripting, denial of service, out of bounds read, and use-after-free vulnerabilities.

tags | advisory, denial of service, overflow, vulnerability, code execution, xss
systems | apple
advisories | CVE-2021-21779, CVE-2021-30677, CVE-2021-30681, CVE-2021-30682, CVE-2021-30685, CVE-2021-30686, CVE-2021-30687, CVE-2021-30689, CVE-2021-30697, CVE-2021-30700, CVE-2021-30701, CVE-2021-30704, CVE-2021-30705, CVE-2021-30707, CVE-2021-30710, CVE-2021-30715, CVE-2021-30720, CVE-2021-30724, CVE-2021-30727, CVE-2021-30734, CVE-2021-30736, CVE-2021-30737, CVE-2021-30740, CVE-2021-30744, CVE-2021-30749
MD5 | 3cd4c0cfce27f37f04dda1c891c9ea99
Apple Security Advisory 2021-05-25-2
Posted May 26, 2021
Authored by Apple | Site apple.com

Apple Security Advisory 2021-05-25-2 - macOS Big Sur 11.4 addresses buffer overflow, bypass, code execution, cross site scripting, denial of service, information leakage, null pointer, out of bounds read, out of bounds write, path sanitization, and use-after-free vulnerabilities.

tags | advisory, denial of service, overflow, vulnerability, code execution, xss
systems | apple
advisories | CVE-2020-36221, CVE-2020-36222, CVE-2020-36223, CVE-2020-36224, CVE-2020-36225, CVE-2020-36226, CVE-2020-36227, CVE-2020-36228, CVE-2020-36229, CVE-2020-36230, CVE-2021-21779, CVE-2021-23841, CVE-2021-30668, CVE-2021-30669, CVE-2021-30671, CVE-2021-30673, CVE-2021-30676, CVE-2021-30677, CVE-2021-30678, CVE-2021-30679, CVE-2021-30680, CVE-2021-30681, CVE-2021-30682, CVE-2021-30683, CVE-2021-30684, CVE-2021-30685
MD5 | b9a849994de75b7dce8b3885c7a72252
Apple Security Advisory 2021-05-25-7
Posted May 26, 2021
Authored by Apple | Site apple.com

Apple Security Advisory 2021-05-25-7 - tvOS 14.6 addresses buffer overflow, code execution, cross site scripting, denial of service, integer overflow, out of bounds read, and use-after-free vulnerabilities.

tags | advisory, denial of service, overflow, vulnerability, code execution, xss
systems | apple
advisories | CVE-2021-21779, CVE-2021-30663, CVE-2021-30665, CVE-2021-30677, CVE-2021-30682, CVE-2021-30685, CVE-2021-30686, CVE-2021-30687, CVE-2021-30689, CVE-2021-30697, CVE-2021-30700, CVE-2021-30701, CVE-2021-30704, CVE-2021-30705, CVE-2021-30707, CVE-2021-30710, CVE-2021-30715, CVE-2021-30720, CVE-2021-30724, CVE-2021-30727, CVE-2021-30734, CVE-2021-30736, CVE-2021-30737, CVE-2021-30740, CVE-2021-30744, CVE-2021-30749
MD5 | d9eb4414124ac37a56edf4f8e06c1938
Apple Security Advisory 2021-05-25-5
Posted May 26, 2021
Authored by Apple | Site apple.com

Apple Security Advisory 2021-05-25-5 - Safari 14.1.1 addresses code execution, cross site scripting, denial of service, integer overflow, null pointer, and use-after-free vulnerabilities.

tags | advisory, denial of service, overflow, vulnerability, code execution, xss
systems | apple
advisories | CVE-2021-21779, CVE-2021-23841, CVE-2021-30663, CVE-2021-30682, CVE-2021-30689, CVE-2021-30698, CVE-2021-30720, CVE-2021-30734, CVE-2021-30744, CVE-2021-30749
MD5 | 9fa41237cf71be5a16d0cecc22eee6a9
Apple Security Advisory 2021-05-25-1
Posted May 26, 2021
Authored by Apple | Site apple.com

Apple Security Advisory 2021-05-25-1 - iOS 14.6 and iPadOS 14.6 addresses buffer overflow, code execution, cross site scripting, denial of service, information leakage, null pointer, out of bounds read, and use-after-free vulnerabilities.

tags | advisory, denial of service, overflow, vulnerability, code execution, xss
systems | apple, ios
advisories | CVE-2021-21779, CVE-2021-23841, CVE-2021-30667, CVE-2021-30674, CVE-2021-30677, CVE-2021-30681, CVE-2021-30682, CVE-2021-30685, CVE-2021-30686, CVE-2021-30687, CVE-2021-30689, CVE-2021-30691, CVE-2021-30692, CVE-2021-30693, CVE-2021-30694, CVE-2021-30695, CVE-2021-30697, CVE-2021-30698, CVE-2021-30699, CVE-2021-30700, CVE-2021-30701, CVE-2021-30704, CVE-2021-30705, CVE-2021-30707, CVE-2021-30708, CVE-2021-30709
MD5 | ad3930f3a391477bc3455e19d4698cd0
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