CVE-2023-4056
Mozilla Firefox ESR and 3 others: Memory safety bugs present in Firefox 115, Firefox ESR 115.0, Firefox ESR 102.13, Thunderbird 115.0,…
CVE-2023-4056 is fixed in 111 products on 2 platforms, first by DEBIAN-CVE-2023-4056, released August 1, 2023. It is not reported as exploited. Patch Radar priority: Urgent.
UrgentFixed on 2 platforms
CVSS
9.8
critical
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0095
61st percentile
Memory safety bugs present in Firefox 115, Firefox ESR 115.0, Firefox ESR 102.13, Thunderbird 115.0, and Thunderbird 102.13. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 116, Firefox ESR < 102.14, and Firefox ESR < 115.1.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Windows apps | |||
| Mozilla Firefox (en-US) | 116.0 | Mozilla Firefox (en-US) 116.0 | Aug 2, 2023 |
| Mozilla Firefox ESR (ach) | 128.3.0 | Mozilla Firefox ESR (ach) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (af) | 128.3.0 | Mozilla Firefox ESR (af) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (an) | 128.3.0 | Mozilla Firefox ESR (an) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (ar) | 128.3.0 | Mozilla Firefox ESR (ar) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (ast) | 128.3.0 | Mozilla Firefox ESR (ast) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (az) | 128.3.0 | Mozilla Firefox ESR (az) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (be) | 128.3.0 | Mozilla Firefox ESR (be) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (bg) | 128.3.0 | Mozilla Firefox ESR (bg) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (bn) | 128.3.0 | Mozilla Firefox ESR (bn) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (br) | 128.3.0 | Mozilla Firefox ESR (br) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (bs) | 128.3.0 | Mozilla Firefox ESR (bs) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (ca) | 128.3.0 | Mozilla Firefox ESR (ca) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (ca-valencia) | 128.3.0 | Mozilla Firefox ESR (ca-valencia) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (cak) | 128.3.0 | Mozilla Firefox ESR (cak) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (cs) | 128.3.0 | Mozilla Firefox ESR (cs) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (cy) | 128.3.0 | Mozilla Firefox ESR (cy) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (da) | 128.3.0 | Mozilla Firefox ESR (da) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (de) | 128.3.0 | Mozilla Firefox ESR (de) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (dsb) | 128.3.0 | Mozilla Firefox ESR (dsb) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (el) | 128.3.0 | Mozilla Firefox ESR (el) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (en-CA) | 128.3.0 | Mozilla Firefox ESR (en-CA) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (en-GB) | 128.3.0 | Mozilla Firefox ESR (en-GB) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (en-US) | 128.3.0 | Mozilla Firefox ESR (en-US) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (eo) | 128.3.0 | Mozilla Firefox ESR (eo) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (es-AR) | 128.3.0 | Mozilla Firefox ESR (es-AR) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (es-CL) | 128.3.0 | Mozilla Firefox ESR (es-CL) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (es-ES) | 128.3.0 | Mozilla Firefox ESR (es-ES) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (es-MX) | 128.3.0 | Mozilla Firefox ESR (es-MX) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (et) | 128.3.0 | Mozilla Firefox ESR (et) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (eu) | 128.3.0 | Mozilla Firefox ESR (eu) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (fa) | 128.3.0 | Mozilla Firefox ESR (fa) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (ff) | 128.3.0 | Mozilla Firefox ESR (ff) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (fi) | 128.3.0 | Mozilla Firefox ESR (fi) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (fr) | 128.3.0 | Mozilla Firefox ESR (fr) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (fur) | 128.3.0 | Mozilla Firefox ESR (fur) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (fy-NL) | 128.3.0 | Mozilla Firefox ESR (fy-NL) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (ga-IE) | 128.3.0 | Mozilla Firefox ESR (ga-IE) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (gd) | 128.3.0 | Mozilla Firefox ESR (gd) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (gl) | 128.3.0 | Mozilla Firefox ESR (gl) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (gn) | 128.3.0 | Mozilla Firefox ESR (gn) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (gu-IN) | 128.3.0 | Mozilla Firefox ESR (gu-IN) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (he) | 128.3.0 | Mozilla Firefox ESR (he) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (hi-IN) | 128.3.0 | Mozilla Firefox ESR (hi-IN) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (hr) | 128.3.0 | Mozilla Firefox ESR (hr) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (hsb) | 128.3.0 | Mozilla Firefox ESR (hsb) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (hu) | 128.3.0 | Mozilla Firefox ESR (hu) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (hy-AM) | 128.3.0 | Mozilla Firefox ESR (hy-AM) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (ia) | 128.3.0 | Mozilla Firefox ESR (ia) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (id) | 128.3.0 | Mozilla Firefox ESR (id) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (is) | 128.3.0 | Mozilla Firefox ESR (is) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (it) | 128.3.0 | Mozilla Firefox ESR (it) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (ja) | 128.3.0 | Mozilla Firefox ESR (ja) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (ka) | 128.3.0 | Mozilla Firefox ESR (ka) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (kab) | 128.3.0 | Mozilla Firefox ESR (kab) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (kk) | 128.3.0 | Mozilla Firefox ESR (kk) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (km) | 128.3.0 | Mozilla Firefox ESR (km) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (kn) | 128.3.0 | Mozilla Firefox ESR (kn) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (ko) | 128.3.0 | Mozilla Firefox ESR (ko) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (lij) | 128.3.0 | Mozilla Firefox ESR (lij) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (lt) | 128.3.0 | Mozilla Firefox ESR (lt) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (lv) | 128.3.0 | Mozilla Firefox ESR (lv) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (mk) | 128.3.0 | Mozilla Firefox ESR (mk) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (mr) | 128.3.0 | Mozilla Firefox ESR (mr) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (ms) | 128.3.0 | Mozilla Firefox ESR (ms) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (my) | 128.3.0 | Mozilla Firefox ESR (my) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (nb-NO) | 128.3.0 | Mozilla Firefox ESR (nb-NO) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (ne-NP) | 128.3.0 | Mozilla Firefox ESR (ne-NP) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (nl) | 128.3.0 | Mozilla Firefox ESR (nl) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (nn-NO) | 128.3.0 | Mozilla Firefox ESR (nn-NO) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (oc) | 128.3.0 | Mozilla Firefox ESR (oc) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (pa-IN) | 128.3.0 | Mozilla Firefox ESR (pa-IN) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (pl) | 128.3.0 | Mozilla Firefox ESR (pl) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (pt-BR) | 128.3.0 | Mozilla Firefox ESR (pt-BR) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (pt-PT) | 128.3.0 | Mozilla Firefox ESR (pt-PT) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (rm) | 128.3.0 | Mozilla Firefox ESR (rm) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (ro) | 128.3.0 | Mozilla Firefox ESR (ro) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (ru) | 128.3.0 | Mozilla Firefox ESR (ru) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (sc) | 128.3.0 | Mozilla Firefox ESR (sc) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (sco) | 128.3.0 | Mozilla Firefox ESR (sco) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (si) | 128.3.0 | Mozilla Firefox ESR (si) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (sk) | 128.3.0 | Mozilla Firefox ESR (sk) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (sl) | 128.3.0 | Mozilla Firefox ESR (sl) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (son) | 128.3.0 | Mozilla Firefox ESR (son) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (sq) | 128.3.0 | Mozilla Firefox ESR (sq) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (sr) | 128.3.0 | Mozilla Firefox ESR (sr) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (sv-SE) | 128.3.0 | Mozilla Firefox ESR (sv-SE) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (szl) | 128.3.0 | Mozilla Firefox ESR (szl) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (ta) | 128.3.0 | Mozilla Firefox ESR (ta) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (te) | 128.3.0 | Mozilla Firefox ESR (te) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (tg) | 128.3.0 | Mozilla Firefox ESR (tg) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (th) | 128.3.0 | Mozilla Firefox ESR (th) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (tl) | 128.3.0 | Mozilla Firefox ESR (tl) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (tr) | 128.3.0 | Mozilla Firefox ESR (tr) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (trs) | 128.3.0 | Mozilla Firefox ESR (trs) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (uk) | 128.3.0 | Mozilla Firefox ESR (uk) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (ur) | 128.3.0 | Mozilla Firefox ESR (ur) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (uz) | 128.3.0 | Mozilla Firefox ESR (uz) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (vi) | 128.3.0 | Mozilla Firefox ESR (vi) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (xh) | 128.3.0 | Mozilla Firefox ESR (xh) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (zh-CN) | 128.3.0 | Mozilla Firefox ESR (zh-CN) 128.3.0 | Oct 1, 2024 |
| Mozilla Firefox ESR (zh-TW) | 128.3.0 | Mozilla Firefox ESR (zh-TW) 128.3.0 | Oct 1, 2024 |
| Linux | |||
| firefox · RHEL 8 | 0:102.14.0-1.el8_8 | RHSA-2023:4468 | Aug 3, 2023 |
| firefox · RHEL 9 | 0:102.14.0-1.el9_2 | RHSA-2023:4462 | Aug 3, 2023 |
| firefox · almalinux 8 | 102.14.0-1.el8_8.alma | ALSA-2023:4468 | Aug 3, 2023 |
| firefox · almalinux 9 | 102.14.0-1.el9_2.alma | ALSA-2023:4462 | Aug 3, 2023 |
| firefox · ol 8 | 0:102.14.0-1.0.1.el8_8 | ELSA-2023-4468 | Aug 4, 2023 |
| firefox · ol 9 | 0:102.14.0-1.0.1.el9_2 | ELSA-2023-4462 | Aug 4, 2023 |
| firefox · rocky 8 | 0:102.14.0-1.el8_8 | RLSA-2023:4468 | Aug 8, 2023 |
| firefox · rocky 9 | 0:102.14.0-1.el9_2 | RLSA-2023:4462 | Aug 8, 2023 |
| firefox-esr · Debian 12.15 (bookworm) | 102.14.0esr-1~deb12u1 | DEBIAN-CVE-2023-4056 | Aug 1, 2023 |
| firefox-esr · Debian 13.5 (trixie) | 115.1.0esr-1 | DEBIAN-CVE-2023-4056 | Aug 1, 2023 |
| firefox-esr · Debian 14 | 115.1.0esr-1 | DEBIAN-CVE-2023-4056 | Aug 1, 2023 |
| firefox-x11 · RHEL 9 | 0:102.14.0-1.el9_2 | RHSA-2023:4462 | Aug 3, 2023 |
| firefox-x11 · almalinux 9 | 102.14.0-1.el9_2.alma | ALSA-2023:4462 | Aug 3, 2023 |
| firefox-x11 · ol 9 | 0:102.14.0-1.0.1.el9_2 | ELSA-2023-4462 | Aug 4, 2023 |
| thunderbird · Debian 12.15 (bookworm) | 1:102.14.0-1~deb12u1 | DEBIAN-CVE-2023-4056 | Aug 1, 2023 |
| thunderbird · Debian 13.5 (trixie) | 1:115.1.0-1 | DEBIAN-CVE-2023-4056 | Aug 1, 2023 |
| thunderbird · Debian 14 | 1:115.1.0-1 | DEBIAN-CVE-2023-4056 | Aug 1, 2023 |
| thunderbird · RHEL 8 | 0:102.14.0-1.el8_8 | RHSA-2023:4497 | Aug 7, 2023 |
| thunderbird · RHEL 9 | 0:102.14.0-1.el9_2 | RHSA-2023:4499 | Aug 7, 2023 |
| thunderbird · Ubuntu 20.04 LTS (focal) | 1:102.15.0+build1-0ubuntu0.20.04.1 | thunderbird 1:102.15.0+build1-0ubuntu0.20.04.1 | Aug 1, 2023 |
| thunderbird · Ubuntu 22.04.1 LTS (jammy) | 1:102.15.0+build1-0ubuntu0.22.04.1 | thunderbird 1:102.15.0+build1-0ubuntu0.22.04.1 | Aug 1, 2023 |
| thunderbird · almalinux 8 | 102.14.0-1.el8_8.alma | ALSA-2023:4497 | Aug 7, 2023 |
| thunderbird · almalinux 9 | 102.14.0-1.el9_2.alma | ALSA-2023:4499 | Aug 7, 2023 |
| thunderbird · ol 8 | 0:102.14.0-1.0.1.el8_8 | ELSA-2023-4497 | Aug 9, 2023 |
| thunderbird · ol 9 | 0:102.14.0-1.0.1.el9_2 | ELSA-2023-4499 | Aug 8, 2023 |
| thunderbird · rocky 8 | 0:102.14.0-1.el8_8 | RLSA-2023:4497 | Aug 8, 2023 |
| thunderbird · rocky 9 | 0:102.14.0-1.el9_2 | RLSA-2023:4499 | Aug 8, 2023 |
| thunderbird-gnome-support · Ubuntu 20.04 LTS (focal) | 1:102.15.0+build1-0ubuntu0.20.04.1 | thunderbird-gnome-support 1:102.15.0+build1-0ubuntu0.20.04.1 | Aug 1, 2023 |
| thunderbird-gnome-support · Ubuntu 22.04.1 LTS (jammy) | 1:102.15.0+build1-0ubuntu0.22.04.1 | thunderbird-gnome-support 1:102.15.0+build1-0ubuntu0.22.04.1 | Aug 1, 2023 |
| thunderbird-mozsymbols · Ubuntu 20.04 LTS (focal) | 1:102.15.0+build1-0ubuntu0.20.04.1 | thunderbird-mozsymbols 1:102.15.0+build1-0ubuntu0.20.04.1 | Aug 1, 2023 |
| thunderbird-mozsymbols · Ubuntu 22.04.1 LTS (jammy) | 1:102.15.0+build1-0ubuntu0.22.04.1 | thunderbird-mozsymbols 1:102.15.0+build1-0ubuntu0.22.04.1 | Aug 1, 2023 |
| xul-ext-calendar-timezones · Ubuntu 20.04 LTS (focal) | 1:102.15.0+build1-0ubuntu0.20.04.1 | xul-ext-calendar-timezones 1:102.15.0+build1-0ubuntu0.20.04.1 | Aug 1, 2023 |
| xul-ext-calendar-timezones · Ubuntu 22.04.1 LTS (jammy) | 1:102.15.0+build1-0ubuntu0.22.04.1 | xul-ext-calendar-timezones 1:102.15.0+build1-0ubuntu0.22.04.1 | Aug 1, 2023 |
| xul-ext-gdata-provider · Ubuntu 20.04 LTS (focal) | 1:102.15.0+build1-0ubuntu0.20.04.1 | xul-ext-gdata-provider 1:102.15.0+build1-0ubuntu0.20.04.1 | Aug 1, 2023 |
| xul-ext-gdata-provider · Ubuntu 22.04.1 LTS (jammy) | 1:102.15.0+build1-0ubuntu0.22.04.1 | xul-ext-gdata-provider 1:102.15.0+build1-0ubuntu0.22.04.1 | Aug 1, 2023 |
| xul-ext-lightning · Ubuntu 20.04 LTS (focal) | 1:102.15.0+build1-0ubuntu0.20.04.1 | xul-ext-lightning 1:102.15.0+build1-0ubuntu0.20.04.1 | Aug 1, 2023 |
| xul-ext-lightning · Ubuntu 22.04.1 LTS (jammy) | 1:102.15.0+build1-0ubuntu0.22.04.1 | xul-ext-lightning 1:102.15.0+build1-0ubuntu0.22.04.1 | Aug 1, 2023 |
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