6.5
CVSSv3

CVE-2021-30823

Published: 28/10/2021 Updated: 09/01/2023
CVSS v2 Base Score: 4 | Impact Score: 2.9 | Exploitability Score: 8
CVSS v3 Base Score: 6.5 | Impact Score: 3.6 | Exploitability Score: 2.8
VMScore: 356
Vector: AV:N/AC:L/Au:S/C:N/I:P/A:N

Vulnerability Summary

A use-after-free flaw was found in WebKitGTK. Specially crafted web content could use this flaw to trigger an arbitrary code execution when processed. (CVE-2021-30809) A confusion type flaw was found in WebKitGTK. Specially crafted web content could use this flaw to trigger an arbitrary code execution when processed. (CVE-2021-30818) A logic issue was found in WebKitGTK. An attacker in a privileged network position could use this flaw to bypass HSTS. (CVE-2021-30823) An out-of-bounds read flaw was found in WebKitGTK. A specially crafted audio file could use this flaw to trigger a disclosure of memory when processed. (CVE-2021-30836) A memory corruption issue was addressed with improved memory handling. This issue is fixed in iOS 14.8 and iPadOS 14.8, Safari 15, tvOS 15, iOS 15 and iPadOS 15, watchOS 8. Processing maliciously crafted web content may lead to arbitrary code execution. (CVE-2021-30846) A memory corruption issue was addressed with improved memory handling. This issue is fixed in iOS 14.8 and iPadOS 14.8, Safari 15, iOS 15 and iPadOS 15. Processing maliciously crafted web content may lead to code execution. (CVE-2021-30848) Multiple memory corruption issues were addressed with improved memory handling. This issue is fixed in iOS 14.8 and iPadOS 14.8, watchOS 8, Safari 15, tvOS 15, iOS 15 and iPadOS 15, iTunes 12.12 for Windows. Processing maliciously crafted web content may lead to arbitrary code execution. (CVE-2021-30849) A memory corruption vulnerability was addressed with improved locking. This issue is fixed in Safari 15, tvOS 15, watchOS 8, iOS 15 and iPadOS 15. Processing maliciously crafted web content may lead to code execution. (CVE-2021-30851) A flaw was found in webkitgtk. This flaw could allow an malicious user to use maliciously crafted web content leading to arbitrary code execution. (CVE-2021-30858) A flaw was found in the way WebKitGTK performed CSS compositing. A malicious web site could possibly use this flaw to reveal user's browsing history. (CVE-2021-30884) An information leak flaw was found in WebKitGTK. A malicious web site using Content Security Policy reports could use this flaw to leak information via redirects. (CVE-2021-30888) A buffer overflow flaw was found in WebKitGTK. Specially crafted web content could use this flaw to trigger an arbitrary code execution when processed. (CVE-2021-30889) A flaw was found in the resource timing API specification and its implementation in WebKitGTK. A malicious web site could use this flaw to trigger a cross-domain data exfiltration. (CVE-2021-30897) BubblewrapLauncher.cpp in WebKitGTK and WPE WebKit prior to 2.34.1 allows a limited sandbox bypass that allows a sandboxed process to trick host processes into thinking the sandboxed process is not confined by the sandbox, by abusing VFS syscalls that manipulate its filesystem namespace. The impact is limited to host services that create UNIX sockets that WebKit mounts inside its sandbox, and the sandboxed process remains otherwise confined. NOTE: this is similar to CVE-2021-41133. (CVE-2021-42762) A segmentation violation vulnerability was found in webkitgtk. An attacker with network access could pass specially crafted HTML files causing an application to halt or crash. (CVE-2021-45481) A use-after-free vulnerability was found in webkitgtk. An attacker with network access could pass specially crafted HTML files causing an application to halt or crash. (CVE-2021-45482) A use-after-free vulnerability was found in webkitgtk. An attacker with network access could pass specially crafted HTML files causing an application to halt or crash. (CVE-2021-45483)

Vulnerability Trend

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apple ipados

apple iphone os

apple watchos

apple tvos

apple safari

apple macos

Vendor Advisories

A use-after-free flaw was found in WebKitGTK Specially crafted web content could use this flaw to trigger an arbitrary code execution when processed (CVE-2021-30809) A confusion type flaw was found in WebKitGTK Specially crafted web content could use this flaw to trigger an arbitrary code execution when processed (CVE-2021-30818) A logic issue ...

Mailing Lists

<!--X-Body-Begin--> <!--X-User-Header--> oss-sec mailing list archives <!--X-User-Header-End--> <!--X-TopPNI--> By Date By Thread </form> <!--X-TopPNI-End--> <!--X-MsgBody--> <!--X-Subject-Header-Begin--> WebKitGTK and WPE WebKit Security Advisory WSA-2021-0007 <!--X-Subject-Header-End--> <!--X-Head-of-Message--> From: Carlos A ...
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 APPLE-SA-2021-10-26-10 Additional information for APPLE-SA-2021-09-20-2 watchOS 8 watchOS 8 addresses the following issues Information about the security content is also available at supportapplecom/HT212819 Accessory Manager Available for: Apple Watch Series 3 and later Impact: An appl ...
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 APPLE-SA-2021-10-26-8 Additional information for APPLE-SA-2021-09-20-5 Safari 15 Safari 15 addresses the following issues Information about the security content is also available at supportapplecom/HT212816 WebKit Available for: macOS Big Sur and macOS Catalina Impact: Processing malici ...
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 APPLE-SA-2021-10-26-11 Additional information for APPLE-SA-2021-09-20-3 tvOS 15 tvOS 15 addresses the following issues Information about the security content is also available at supportapplecom/HT212815 Accessory Manager Available for: Apple TV 4K and Apple TV HD Impact: An application ...
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 APPLE-SA-2021-10-26-3 macOS Monterey 1201 macOS Monterey 1201 addresses the following issues Information about the security content is also available at supportapplecom/HT212869 AppKit Available for: Mac Pro (2013 and later), MacBook Air (Early 2015 and later), MacBook Pro (Early 20 ...