Medium severity6.5NVD Advisory· Published Sep 27, 2023· Updated Jun 17, 2026
CVE-2023-5171
CVE-2023-5171
Description
During Ion compilation, a Garbage Collection could have resulted in a use-after-free condition, allowing an attacker to write two NUL bytes, and cause a potentially exploitable crash. This vulnerability affects Firefox < 118, Firefox ESR < 115.3, and Thunderbird < 115.3.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
36<118+ 2 more
- (no CPE)range: <118
- (no CPE)range: unspecified
- (no CPE)range: unspecified
<115.3+ 1 more
- (no CPE)range: <115.3
- (no CPE)range: unspecified
- osv-coords31 versionspkg:apk/chainguard/firefox-esrpkg: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%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
< 118-r0+ 30 more
- (no CPE)range: < 118-r0
- (no CPE)range: < 115.3.1-1.el9_2.alma.1
- (no CPE)range: < 115.3.1-1.el9_2.alma.1
- (no CPE)range: < 115.3.1-1.el9_2.alma
- (no CPE)range: < 128.5.1-1.1
- (no CPE)range: < 115.3.0-150200.152.108.1
- (no CPE)range: < 115.3.0-150200.152.108.1
- (no CPE)range: < 118.0.1-1.1
- (no CPE)range: < 115.3.1-150200.8.133.1
- (no CPE)range: < 115.3.1-150200.8.133.1
- (no CPE)range: < 115.3.0-1.1
- (no CPE)range: < 115.3.0-150200.152.108.1
- (no CPE)range: < 115.3.0-150000.150.107.1
- (no CPE)range: < 115.3.0-150200.152.108.1
- (no CPE)range: < 115.3.0-150200.152.108.1
- (no CPE)range: < 115.3.0-150200.152.108.1
- (no CPE)range: < 115.3.0-150200.152.108.1
- (no CPE)range: < 115.3.0-150200.152.108.1
- (no CPE)range: < 115.3.0-112.182.1
- (no CPE)range: < 115.3.0-150000.150.107.1
- (no CPE)range: < 115.3.0-150200.152.108.1
- (no CPE)range: < 115.3.0-150200.152.108.1
- (no CPE)range: < 115.3.0-112.182.1
- (no CPE)range: < 115.3.0-150000.150.107.1
- (no CPE)range: < 115.3.0-150200.152.108.1
- (no CPE)range: < 115.3.0-150200.152.108.1
- (no CPE)range: < 115.3.0-112.182.1
- (no CPE)range: < 115.3.1-150200.8.133.1
- (no CPE)range: < 115.3.1-150200.8.133.1
- (no CPE)range: < 115.3.1-150200.8.133.1
- (no CPE)range: < 115.3.1-150200.8.133.1
Patches
Vulnerability mechanics
References
9- lists.debian.org/debian-lts-announce/2023/09/msg00034.htmlnvdMailing ListPatchThird Party Advisory
- www.debian.org/security/2023/dsa-5506nvdPatchThird Party Advisory
- lists.debian.org/debian-lts-announce/2023/10/msg00015.htmlnvdMailing ListThird Party Advisory
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AY642Z6JZODQJE7Z62CFREVUHEGCXGPD/nvdMailing ListThird Party Advisory
- www.debian.org/security/2023/dsa-5513nvdThird Party Advisory
- www.mozilla.org/security/advisories/mfsa2023-41/nvdVendor Advisory
- www.mozilla.org/security/advisories/mfsa2023-42/nvdVendor Advisory
- www.mozilla.org/security/advisories/mfsa2023-43/nvdVendor Advisory
- bugzilla.mozilla.org/show_bug.cginvdIssue TrackingPermissions Required
News mentions
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