PT-2017-3991 · Mozilla+4 · Firefox Esr+6

Nils · Published 2017-07-12 · Updated 2024-12-12 · CVE-2017-7809

Positive Technologies (AI Summary)

CVSS v3.1

10

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions Thunderbird versions prior to 52.3 Firefox ESR versions prior to 52.3 Firefox versions prior to 55

Description A use-after-free issue can occur when an editor DOM node is deleted prematurely during tree traversal while still bound to the document, resulting in a potentially exploitable crash. The vulnerability is related to the manipulation of DOM elements and can lead to a denial of service.

Recommendations For Thunderbird versions prior to 52.3, update to version 52.3 or later. For Firefox ESR versions prior to 52.3, update to version 52.3 or later. For Firefox versions prior to 55, update to version 55 or later.

Exploit

Fix

Use After Free

Weakness Enumeration

CWE-416

Related Identifiers

ALT-PU-2017-2019

ALT-PU-2017-2060

ALT-PU-2017-2093

ALT-PU-2018-1854

BDU:2021-00026

CESA-2017_2456

CESA-2017_2534

CVE-2017-7809

DLA-1053-1

DLA-1087-1

DSA-3928-1

DSA-3928-2

DSA-3968-1

MGASA-2017-0268

MGASA-2017-0303

MGASA-2018-0018

OPENSUSE-SU-2024:10600-1

OPENSUSE-SU-2024:14572-1

RHSA-2017:2456

RHSA-2017:2534

RHSA-2017_2456

RHSA-2017_2534

USN-3391-1

USN-3391-2

USN-3391-3

USN-3416-1

Affected Products

Alt Linux

Centos

Firefox

Firefox Esr

Red Hat

Thunderbird

Ubuntu

References · 1943

• 🔥 https://bugzilla.mozilla.org/show_bug.cgi?id=1380284 · Exploit
• https://advisories.mageia.org/MGASA-2018-0018.html · Security Note
• https://ubuntu.com/security/CVE-2017-7806 · Vendor Advisory
• https://mozilla.org/security/advisories/mfsa2017-19 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2024:14572-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-7800 · Vendor Advisory
• https://mozilla.org/security/advisories/mfsa2017-20 · Vendor Advisory
• https://access.redhat.com/errata/RHSA-2017:2456 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2017-7809 · Security Note
• https://osv.dev/vulnerability/USN-3391-2 · Vendor Advisory
• https://osv.dev/vulnerability/DSA-3928-1 · Vendor Advisory
• https://osv.dev/vulnerability/DSA-3968-1 · Vendor Advisory
• https://mozilla.org/en-US/security/known-vulnerabilities/firefox-esr · Vendor Advisory
• https://debian.org/security/2017/dsa-3928 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-7809 · Vendor Advisory