Critical severity9.8NVD Advisory· Published Jun 11, 2018· Updated Jun 17, 2026
CVE-2017-7793
CVE-2017-7793
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
45- osv-coords42 versionspkg:rpm/opensuse/firefox-esr&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/MozillaFirefox&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/MozillaThunderbird&distro=openSUSE%20Tumbleweedpkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP2pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP3pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Point%20of%20Sale%2011%20SP3pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP3-LTSSpkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP3-TERADATApkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP1-LTSSpkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%2012-LTSSpkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%20for%20Raspberry%20Pi%2012%20SP2pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2011%20SP4pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP1pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2011%20SP4pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP2pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP3pkg:rpm/suse/MozillaFirefox&distro=SUSE%20OpenStack%20Cloud%206pkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP2pkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP3pkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Point%20of%20Sale%2011%20SP3pkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP3-LTSSpkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP3-TERADATApkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4pkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP1-LTSSpkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2pkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3pkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Server%2012-LTSSpkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Server%20for%20Raspberry%20Pi%2012%20SP2pkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2011%20SP4pkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP1pkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2pkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3pkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2011%20SP4pkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP2pkg:rpm/suse/mozilla-nss&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP3pkg:rpm/suse/mozilla-nss&distro=SUSE%20OpenStack%20Cloud%206pkg:rpm/suse/MozillaThunderbird&distro=SUSE%20Package%20Hub%2012
< 128.5.1-1.1+ 41 more
- (no CPE)range: < 128.5.1-1.1
- (no CPE)range: < 92.0-1.2
- (no CPE)range: < 91.1.1-1.1
- (no CPE)range: < 52.4.0esr-109.6.2
- (no CPE)range: < 52.4.0esr-109.6.2
- (no CPE)range: < 52.4.0esr-72.13.2
- (no CPE)range: < 52.4.0esr-72.13.2
- (no CPE)range: < 52.4.0esr-72.13.2
- (no CPE)range: < 52.4.0esr-72.13.2
- (no CPE)range: < 52.4.0esr-109.6.2
- (no CPE)range: < 52.4.0esr-109.6.2
- (no CPE)range: < 52.4.0esr-109.6.2
- (no CPE)range: < 52.4.0esr-109.6.2
- (no CPE)range: < 52.4.0esr-109.6.2
- (no CPE)range: < 52.4.0esr-72.13.2
- (no CPE)range: < 52.4.0esr-109.6.2
- (no CPE)range: < 52.4.0esr-109.6.2
- (no CPE)range: < 52.4.0esr-109.6.2
- (no CPE)range: < 52.4.0esr-72.13.2
- (no CPE)range: < 52.4.0esr-109.6.2
- (no CPE)range: < 52.4.0esr-109.6.2
- (no CPE)range: < 52.4.0esr-109.6.2
- (no CPE)range: < 3.29.5-58.3.1
- (no CPE)range: < 3.29.5-58.3.1
- (no CPE)range: < 3.29.5-47.6.1
- (no CPE)range: < 3.29.5-47.6.1
- (no CPE)range: < 3.29.5-47.6.1
- (no CPE)range: < 3.29.5-47.6.1
- (no CPE)range: < 3.29.5-58.3.1
- (no CPE)range: < 3.29.5-58.3.1
- (no CPE)range: < 3.29.5-58.3.1
- (no CPE)range: < 3.29.5-58.3.1
- (no CPE)range: < 3.29.5-58.3.1
- (no CPE)range: < 3.29.5-47.6.1
- (no CPE)range: < 3.29.5-58.3.1
- (no CPE)range: < 3.29.5-58.3.1
- (no CPE)range: < 3.29.5-58.3.1
- (no CPE)range: < 3.29.5-47.6.1
- (no CPE)range: < 3.29.5-58.3.1
- (no CPE)range: < 3.29.5-58.3.1
- (no CPE)range: < 3.29.5-58.3.1
- (no CPE)range: < 52.4.0-45.1
unspecified+ 1 more
- (no CPE)range: unspecified
- (no CPE)range: unspecified
- Range: unspecified
Patches
Vulnerability mechanics
References
12- bugzilla.mozilla.org/show_bug.cginvdIssue TrackingPatchVendor Advisory
- www.securityfocus.com/bid/101055nvdThird Party AdvisoryVDB Entry
- www.securitytracker.com/id/1039465nvdThird Party AdvisoryVDB Entry
- access.redhat.com/errata/RHSA-2017:2831nvdThird Party Advisory
- access.redhat.com/errata/RHSA-2017:2885nvdThird Party Advisory
- lists.debian.org/debian-lts-announce/2017/11/msg00000.htmlnvdThird Party Advisory
- security.gentoo.org/glsa/201803-14nvdThird Party Advisory
- www.debian.org/security/2017/dsa-3987nvdThird Party Advisory
- www.debian.org/security/2017/dsa-4014nvdThird Party Advisory
- www.mozilla.org/security/advisories/mfsa2017-21/nvdVendor Advisory
- www.mozilla.org/security/advisories/mfsa2017-22/nvdVendor Advisory
- www.mozilla.org/security/advisories/mfsa2017-23/nvdVendor Advisory
News mentions
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