Vulnerability · Published Dec 22, 2022 · Assigned by mozilla
CVE-2022-34470
Critical 9.8
In plain English
A critical-severity use-after-free in Firefox from Mozilla. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 1.1% (higher than 65% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)1.1%top 34.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
Session history navigations may have led to a use-after-free and potentially exploitable crash. This vulnerability affects Firefox < 102, Firefox ESR < 91.11, Thunderbird < 102, and Thunderbird < 91.11.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:9 | thunderbird | 91.11.0-2.el9_0.alma | ALSA-2022:5482 |
| Alpine:v3.20 | firefox | 102.0-r0 | ALPINE-CVE-2022-34470 |
| Alpine:v3.21 | firefox | 102.0-r0 | ALPINE-CVE-2022-34470 |
| Alpine:v3.22 | firefox | 102.0-r0 | ALPINE-CVE-2022-34470 |
| Alpine:v3.23 | firefox | 102.0-r0 | ALPINE-CVE-2022-34470 |
| Alpine:v3.20 | firefox-esr | 91.11.0-r0 | ALPINE-CVE-2022-34470 |
| Alpine:v3.21 | firefox-esr | 91.11.0-r0 | ALPINE-CVE-2022-34470 |
| Alpine:v3.22 | firefox-esr | 91.11.0-r0 | ALPINE-CVE-2022-34470 |
| Alpine:v3.23 | firefox-esr | 91.11.0-r0 | ALPINE-CVE-2022-34470 |
| Alpine:v3.21 | librewolf | 102.0-r0 | ALPINE-CVE-2022-34470 |
| Alpine:v3.22 | librewolf | 102.0-r0 | ALPINE-CVE-2022-34470 |
| Alpine:v3.23 | librewolf | 102.0-r0 | ALPINE-CVE-2022-34470 |
| Alpine:v3.24 | librewolf | 102.0-r0 | ALPINE-CVE-2022-34470 |
| Alpine:v3.20 | thunderbird | 102.0-r0, 102.1.0-r0 | ALPINE-CVE-2022-34470 |
| Alpine:v3.21 | thunderbird | 102.0-r0, 102.1.0-r0 | ALPINE-CVE-2022-34470 |
| Alpine:v3.22 | thunderbird | 102.0-r0, 102.1.0-r0 | ALPINE-CVE-2022-34470 |
| Alpine:v3.23 | thunderbird | 102.0-r0, 102.1.0-r0 | ALPINE-CVE-2022-34470 |
| Debian:12 | firefox-esr | 91.11.0esr-1 | DEBIAN-CVE-2022-34470 |
| Debian:13 | firefox-esr | 91.11.0esr-1 | DEBIAN-CVE-2022-34470 |
| Debian:14 | firefox-esr | 91.11.0esr-1 | DEBIAN-CVE-2022-34470 |
| Debian:12 | thunderbird | 1:91.11.0-1 | DEBIAN-CVE-2022-34470 |
| Debian:13 | thunderbird | 1:91.11.0-1 | DEBIAN-CVE-2022-34470 |
| Debian:14 | thunderbird | 1:91.11.0-1 | DEBIAN-CVE-2022-34470 |
| Rocky Linux:8 | firefox | 0:91.11.0-2.el8_6 | RLSA-2022:5469 |
| Rocky Linux:8 | thunderbird | 0:91.11.0-2.el8_6 | RLSA-2022:5470 |
| Ubuntu:22.04:LTS | thunderbird | 1:91.11.0+build2-0ubuntu0.22.04.1 | UBUNTU-CVE-2022-34470 |
| Ubuntu:22.04:LTS | thunderbird | 1:91.11.0+build2-0ubuntu0.22.04.1 | USN-5512-1 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Firefox | unspecified – before 102 |
| Mozilla | Firefox ESR | unspecified – before 91.11 |
| Mozilla | Thunderbird | unspecified – before 102unspecified – before 91.11 |
Weakness: CWE-416 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H