CVE-2017-7793

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.

• CWE-416

• http://www.securityfocus.com/bid/101055Third Party Advisory, VDB Entry
• http://www.securitytracker.com/id/1039465Third Party Advisory, VDB Entry
• https://access.redhat.com/errata/RHSA-2017:2831Third Party Advisory
• https://access.redhat.com/errata/RHSA-2017:2885Third Party Advisory
• https://bugzilla.mozilla.org/show_bug.cgi?id=1371889Issue Tracking, Patch, Vendor Advisory
• https://lists.debian.org/debian-lts-announce/2017/11/msg00000.htmlThird Party Advisory
• https://security.gentoo.org/glsa/201803-14Third Party Advisory
• https://www.debian.org/security/2017/dsa-3987Third Party Advisory
• https://www.debian.org/security/2017/dsa-4014Third Party Advisory
• https://www.mozilla.org/security/advisories/mfsa2017-21/Vendor Advisory
• https://www.mozilla.org/security/advisories/mfsa2017-22/Vendor Advisory
• https://www.mozilla.org/security/advisories/mfsa2017-23/Vendor Advisory
• http://www.securityfocus.com/bid/101055Third Party Advisory, VDB Entry
• http://www.securitytracker.com/id/1039465Third Party Advisory, VDB Entry
• https://access.redhat.com/errata/RHSA-2017:2831Third Party Advisory
• https://access.redhat.com/errata/RHSA-2017:2885Third Party Advisory
• https://bugzilla.mozilla.org/show_bug.cgi?id=1371889Issue Tracking, Patch, Vendor Advisory
• https://lists.debian.org/debian-lts-announce/2017/11/msg00000.htmlThird Party Advisory
• https://security.gentoo.org/glsa/201803-14Third Party Advisory
• https://www.debian.org/security/2017/dsa-3987Third Party Advisory
• https://www.debian.org/security/2017/dsa-4014Third Party Advisory
• https://www.mozilla.org/security/advisories/mfsa2017-21/Vendor Advisory
• https://www.mozilla.org/security/advisories/mfsa2017-22/Vendor Advisory
• https://www.mozilla.org/security/advisories/mfsa2017-23/Vendor Advisory

Published

Jun 11, 2018

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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