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CVE Vulnerabilities

CVE-2020-13543

Use After Free

Published: Dec 03, 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
6.8 MEDIUM
AV:N/AC:M/Au:N/C:P/I:P/A:P
RedHat/V2
RedHat/V3
8.8 MODERATE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Ubuntu
MEDIUM
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Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2020-13543
CWEhttps://cwe.mitre.org/data/definitions/416.html

A code execution vulnerability exists in the WebSocket functionality of Webkit WebKitGTK 2.30.0. A specially crafted web page can trigger a use-after-free vulnerability which can lead to remote code execution. An attacker can get a user to visit a webpage to trigger this vulnerability.

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 Any operations using the original pointer are no longer valid because the memory “belongs” to the code that operates on the new pointer.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
WebkitgtkWebkitgtk2.30.0 (including)2.30.0 (including)
Red Hat Enterprise Linux 7 Extended Lifecycle SupportRedHatwebkitgtk4-0:2.48.3-2.el7_9*
Red Hat Enterprise Linux 8RedHatwebkit2gtk3-0:2.30.4-1.el8*
QtwebkitUbuntutrusty*
Qtwebkit-opensource-srcUbuntubionic*
Qtwebkit-opensource-srcUbuntudevel*
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*
Webkit2gtkUbuntudevel*
Webkit2gtkUbuntuesm-infra/bionic*
Webkit2gtkUbuntuesm-infra/focal*
Webkit2gtkUbuntuesm-infra/xenial*
Webkit2gtkUbuntufocal*
Webkit2gtkUbuntugroovy*
Webkit2gtkUbuntuhirsute*
Webkit2gtkUbuntuimpish*
Webkit2gtkUbuntujammy*
Webkit2gtkUbuntukinetic*
Webkit2gtkUbuntulunar*
Webkit2gtkUbuntumantic*
Webkit2gtkUbuntunoble*
Webkit2gtkUbuntuupstream*
Webkit2gtkUbuntuxenial*
WebkitgtkUbuntubionic*
WebkitgtkUbuntuesm-apps/bionic*
WebkitgtkUbuntuesm-apps/xenial*
WebkitgtkUbuntutrusty*
WebkitgtkUbuntuxenial*
WpewebkitUbuntuesm-apps/focal*
WpewebkitUbuntuesm-apps/jammy*
WpewebkitUbuntufocal*
WpewebkitUbuntugroovy*
WpewebkitUbuntuhirsute*
WpewebkitUbuntuimpish*
WpewebkitUbuntujammy*
WpewebkitUbuntutrusty*

Potential Mitigations

References

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