Unrated severityNVD Advisory· Published Sep 11, 2023· Updated Dec 18, 2025
Memory corruption in JIT UpdateRegExpStatics
CVE-2023-4577
Description
When UpdateRegExpStatics attempted to access initialStringHeap it could already have been garbage collected prior to entering the function, which could potentially have led to an exploitable crash. This vulnerability affects Firefox < 117, Firefox ESR < 115.2, and Thunderbird < 115.2.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
37<115.2+ 3 more
- (no CPE)range: <115.2
- (no CPE)range: <117
- (no CPE)range: unspecified
- (no CPE)range: unspecified
<115.2+ 1 more
- (no CPE)range: <115.2
- (no CPE)range: unspecified
- osv-coords31 versionspkg:rpm/almalinux/firefoxpkg:rpm/almalinux/firefox-x11pkg:rpm/almalinux/thunderbirdpkg:rpm/opensuse/firefox-esr&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/MozillaFirefox&distro=openSUSE%20Leap%2015.4pkg:rpm/opensuse/MozillaFirefox&distro=openSUSE%20Leap%2015.5pkg:rpm/opensuse/MozillaFirefox&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/MozillaThunderbird&distro=openSUSE%20Leap%2015.4pkg:rpm/opensuse/MozillaThunderbird&distro=openSUSE%20Leap%2015.5pkg:rpm/opensuse/MozillaThunderbird&distro=openSUSE%20Tumbleweedpkg:rpm/suse/MozillaFirefox&distro=SUSE%20Enterprise%20Storage%207pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Enterprise%20Storage%207.1pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-LTSSpkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP2-LTSSpkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP3-ESPOSpkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP3-LTSSpkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Desktop%20Applications%2015%20SP4pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Desktop%20Applications%2015%20SP5pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-LTSSpkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP2-LTSSpkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP3-LTSSpkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP5pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP1pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP2pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP3pkg:rpm/suse/MozillaFirefox&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP5pkg:rpm/suse/MozillaThunderbird&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Package%20Hub%2015%20SP4pkg:rpm/suse/MozillaThunderbird&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Package%20Hub%2015%20SP5pkg:rpm/suse/MozillaThunderbird&distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2015%20SP4pkg:rpm/suse/MozillaThunderbird&distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2015%20SP5
< 102.15.0-1.el8_8.alma+ 30 more
- (no CPE)range: < 102.15.0-1.el8_8.alma
- (no CPE)range: < 102.15.0-1.el9_2.alma
- (no CPE)range: < 102.15.0-1.el8_8.alma
- (no CPE)range: < 128.5.1-1.1
- (no CPE)range: < 115.2.0-150200.152.102.1
- (no CPE)range: < 115.2.0-150200.152.102.1
- (no CPE)range: < 117.0-1.1
- (no CPE)range: < 115.2.2-150200.8.130.1
- (no CPE)range: < 115.2.2-150200.8.130.1
- (no CPE)range: < 115.2.0-1.1
- (no CPE)range: < 115.2.0-150200.152.102.1
- (no CPE)range: < 115.2.0-150200.152.102.1
- (no CPE)range: < 115.2.0-150000.150.100.1
- (no CPE)range: < 115.2.0-150200.152.102.1
- (no CPE)range: < 115.2.0-150200.152.102.1
- (no CPE)range: < 115.2.0-150200.152.102.1
- (no CPE)range: < 115.2.0-150200.152.102.1
- (no CPE)range: < 115.2.0-150200.152.102.1
- (no CPE)range: < 115.2.0-112.176.1
- (no CPE)range: < 115.2.0-150000.150.100.1
- (no CPE)range: < 115.2.0-150200.152.102.1
- (no CPE)range: < 115.2.0-150200.152.102.1
- (no CPE)range: < 115.2.0-112.176.1
- (no CPE)range: < 115.2.0-150000.150.100.1
- (no CPE)range: < 115.2.0-150200.152.102.1
- (no CPE)range: < 115.2.0-150200.152.102.1
- (no CPE)range: < 115.2.0-112.176.1
- (no CPE)range: < 115.2.2-150200.8.130.1
- (no CPE)range: < 115.2.2-150200.8.130.1
- (no CPE)range: < 115.2.2-150200.8.130.1
- (no CPE)range: < 115.2.2-150200.8.130.1
Patches
Vulnerability mechanics
References
4News mentions
0No linked articles in our index yet.