PT-2019-4864 · Mozilla+5 · Firefox+5

Michał Bentkowski · Published 2019-12-03 · Updated 2024-12-12 · CVE-2019-17016

Positive Technologies (AI Summary)

CVSS v3.1

6.1

Medium

Base vector

AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Name of the Vulnerable Software and Affected Versions Firefox ESR versions prior to 68.4 Firefox versions prior to 72

Description The issue arises when pasting a <style> tag from the clipboard into a rich text editor, causing the CSS sanitizer to incorrectly rewrite a @namespace rule. This could lead to injection into certain types of websites, resulting in data exfiltration. The vulnerability may allow a remote attacker to impact data integrity.

Recommendations For Firefox ESR versions prior to 68.4, update to version 68.4 or later. For Firefox versions prior to 72, update to version 72 or later.

Exploit

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

ALT-PU-2020-1013

ALT-PU-2020-1032

ALT-PU-2020-1110

ALT-PU-2020-1166

ALT-PU-2020-1515

ALT-PU-2020-1617

ALT-PU-2020-2408

ALT-PU-2020-2933

ALT-PU-2021-1368

BDU:2020-01450

CESA-2020_0085

CESA-2020_0086

CESA-2020_0111

CESA-2020_0120

CESA-2020_0123

CESA-2020_0127

CVE-2019-17016

DLA-2061-1

DLA-2071-1

DSA-4600-1

DSA-4603-1

MGASA-2020-0027

MGASA-2020-0034

OPENSUSE-SU-2020:0060-1

OPENSUSE-SU-2020:0094-1

OPENSUSE-SU-2020_0060-1

OPENSUSE-SU-2020_0094-1

OPENSUSE-SU-2024:10600-1

OPENSUSE-SU-2024:10601-1

OPENSUSE-SU-2024:14572-1

RHSA-2020:0085

RHSA-2020:0086

RHSA-2020:0111

RHSA-2020:0120

RHSA-2020:0123

RHSA-2020:0127

RHSA-2020:0292

RHSA-2020:0295

RHSA-2020_0085

RHSA-2020_0086

RHSA-2020_0111

RHSA-2020_0120

RHSA-2020_0123

RHSA-2020_0127

SUSE-SU-2020:0068-1

SUSE-SU-2020:0078-1

SUSE-SU-2020:0142-1

SUSE-SU-2020:14268-1

USN-4234-1

USN-4234-2

USN-4241-1

USN-4335-1

Affected Products

Alt Linux

Centos

Firefox

Red Hat

Suse

Ubuntu

References · 2089

• 🔥 https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/multi/browser/firefox_jit_use_after_free.rb · Exploit
• 🔥 https://github.com/maxpl0it/CVE-2019-17026-Exploit · Exploit
• 🔥 https://github.com/aleksejspopovs/cve-2020-16012 · Exploit
• 🔥 https://github.com/lsw29475/CVE-2019-17026 · Exploit
• 🔥 https://github.com/rojhack/CVE-2020-6514 · Exploit
• 🔥 https://github.com/HassanAzze/CVE-2020-6514 · Exploit
• 🔥 https://github.com/hasan-khalil/CVE-2020-6514 · Exploit
• 🔥 https://github.com/R0jhack/CVE-2020-6514 · Exploit
• 🔥❌ https://github.com/marcinguy/CVE-2020-15999 · Exploit, Deleted
• 🔥❌ https://github.com/alidnf/CVE-2019-11730 · Exploit, Deleted
• https://ubuntu.com/security/CVE-2020-6821 · Vendor Advisory
• https://access.redhat.com/errata/RHSA-2020:0085 · Vendor Advisory
• https://ubuntu.com/security/CVE-2019-11761 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2024:14572-1 · Vendor Advisory
• https://access.redhat.com/errata/RHSA-2020:0123 · Vendor Advisory