CVE-2017-7793

9.8 CRITICAL
Published: June 11, 2018 Modified: November 25, 2025
View on NVD

Description

A use-after-free vulnerability can occur in the Fetch API when the worker or the associated window are freed when still in use, resulting in a potentially exploitable crash. This vulnerability affects Firefox < 56, Firefox ESR < 52.4, and Thunderbird < 52.4.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
http://www.securityfocus.com/bid/101055
Source: security@mozilla.org
Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1039465
Source: security@mozilla.org
Third Party Advisory VDB Entry
https://access.redhat.com/errata/RHSA-2017:2831
Source: security@mozilla.org
Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:2885
Source: security@mozilla.org
Third Party Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1371889
Source: security@mozilla.org
Issue Tracking Patch Vendor Advisory
https://lists.debian.org/debian-lts-announce/2017/11/msg00000.html
Source: security@mozilla.org
Third Party Advisory
https://security.gentoo.org/glsa/201803-14
Source: security@mozilla.org
Third Party Advisory
https://www.debian.org/security/2017/dsa-3987
Source: security@mozilla.org
Third Party Advisory
https://www.debian.org/security/2017/dsa-4014
Source: security@mozilla.org
Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2017-21/
Source: security@mozilla.org
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2017-22/
Source: security@mozilla.org
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2017-23/
Source: security@mozilla.org
Vendor Advisory
http://www.securityfocus.com/bid/101055
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1039465
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory VDB Entry
https://access.redhat.com/errata/RHSA-2017:2831
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:2885
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1371889
Source: af854a3a-2127-422b-91ae-364da2661108
Issue Tracking Patch Vendor Advisory
https://lists.debian.org/debian-lts-announce/2017/11/msg00000.html
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://security.gentoo.org/glsa/201803-14
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://www.debian.org/security/2017/dsa-3987
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://www.debian.org/security/2017/dsa-4014
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2017-21/
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2017-22/
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2017-23/
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory

24 reference(s) from NVD

Quick Stats

CVSS v3 Score
9.8 / 10.0
EPSS (Exploit Probability)
2.4%
85th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

CWE-416

Affected Vendors

mozilla debian redhat

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