Vulnerabilities
Misconfiguration
Compliance
CVE Vulnerabilities

CVE-2019-8846

Use After Free

Published: Oct 27, 2020 | Modified: Nov 21, 2024
CVSS 3.x
8.8
HIGH
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS 2.x
9.3 HIGH
AV:N/AC:M/Au:N/C:C/I:C/A:C
RedHat/V2
RedHat/V3
8.1 MODERATE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Ubuntu
MEDIUM
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Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2019-8846
CWEhttps://cwe.mitre.org/data/definitions/416.html

A use after free issue was addressed with improved memory management. This issue is fixed in tvOS 13.3, iCloud for Windows 10.9, iOS 13.3 and iPadOS 13.3, Safari 13.0.4, iTunes 12.10.3 for Windows, iCloud for Windows 7.16. Processing maliciously crafted web content may lead to arbitrary code execution.

Weakness

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory “belongs” to the code that operates on the new pointer.

Affected Software

NameVendorStart VersionEnd Version
IcloudApple*7.16 (excluding)
IcloudApple10.0 (including)10.9 (excluding)
ItunesApple*12.10.3 (excluding)
SafariApple*13.0.4 (excluding)
IpadosApple*13.3 (excluding)
Iphone_osApple*13.3 (excluding)
TvosApple*13.3 (excluding)
Red Hat Enterprise Linux 7RedHatwebkitgtk4-0:2.28.2-2.el7*
Red Hat Enterprise Linux 8RedHatwebkit2gtk3-0:2.28.4-1.el8*
QtwebkitUbuntueoan*
QtwebkitUbuntutrusty*
Qtwebkit-opensource-srcUbuntubionic*
Qtwebkit-opensource-srcUbuntudevel*
Qtwebkit-opensource-srcUbuntueoan*
Qtwebkit-opensource-srcUbuntuesm-apps/bionic*
Qtwebkit-opensource-srcUbuntuesm-apps/focal*
Qtwebkit-opensource-srcUbuntuesm-apps/jammy*
Qtwebkit-opensource-srcUbuntuesm-apps/noble*
Qtwebkit-opensource-srcUbuntuesm-infra/xenial*
Qtwebkit-opensource-srcUbuntufocal*
Qtwebkit-opensource-srcUbuntugroovy*
Qtwebkit-opensource-srcUbuntuhirsute*
Qtwebkit-opensource-srcUbuntuimpish*
Qtwebkit-opensource-srcUbuntujammy*
Qtwebkit-opensource-srcUbuntukinetic*
Qtwebkit-opensource-srcUbuntulunar*
Qtwebkit-opensource-srcUbuntumantic*
Qtwebkit-opensource-srcUbuntunoble*
Qtwebkit-opensource-srcUbuntutrusty*
Qtwebkit-opensource-srcUbuntuupstream*
Qtwebkit-opensource-srcUbuntuxenial*
Qtwebkit-sourceUbuntubionic*
Qtwebkit-sourceUbuntuesm-apps/bionic*
Qtwebkit-sourceUbuntuesm-apps/xenial*
Qtwebkit-sourceUbuntutrusty*
Qtwebkit-sourceUbuntuxenial*
Webkit2gtkUbuntubionic*
Webkit2gtkUbuntueoan*
Webkit2gtkUbuntuesm-infra/bionic*
Webkit2gtkUbuntuesm-infra/xenial*
Webkit2gtkUbuntuupstream*
Webkit2gtkUbuntuxenial*
WebkitgtkUbuntubionic*
WebkitgtkUbuntuesm-apps/bionic*
WebkitgtkUbuntuesm-apps/xenial*
WebkitgtkUbuntutrusty*
WebkitgtkUbuntuxenial*

Potential Mitigations

References

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