Vulnerability · Published Dec 22, 2022 · Assigned by mozilla
CVE-2022-42927
High 8.1
In plain English
A high-severity security flaw in Firefox from Mozilla. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 39% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)8.1High
Exploit odds (30 days)0.4%top 61.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
A same-origin policy violation could have allowed the theft of cross-origin URL entries, leaking the result of a redirect, via `performance.getEntries()`. This vulnerability affects Firefox < 106, Firefox ESR < 102.4, and Thunderbird < 102.4.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:8 | firefox | 102.4.0-1.el8_6.alma | ALSA-2022:7070 |
| AlmaLinux:9 | firefox | 102.4.0-1.el9_0.alma | ALSA-2022:7071 |
| AlmaLinux:8 | thunderbird | 102.4.0-1.el8_6.alma | ALSA-2022:7190 |
| AlmaLinux:9 | thunderbird | 102.4.0-1.el9_0.alma | ALSA-2022:7178 |
| Alpine:v3.20 | firefox-esr | 102.4.0-r0 | ALPINE-CVE-2022-42927 |
| Alpine:v3.21 | firefox-esr | 102.4.0-r0 | ALPINE-CVE-2022-42927 |
| Alpine:v3.22 | firefox-esr | 102.4.0-r0 | ALPINE-CVE-2022-42927 |
| Alpine:v3.23 | firefox-esr | 102.4.0-r0 | ALPINE-CVE-2022-42927 |
| Debian:12 | firefox-esr | 102.4.0esr-1 | DEBIAN-CVE-2022-42927 |
| Debian:13 | firefox-esr | 102.4.0esr-1 | DEBIAN-CVE-2022-42927 |
| Debian:14 | firefox-esr | 102.4.0esr-1 | DEBIAN-CVE-2022-42927 |
| Debian:12 | thunderbird | 1:102.4.0-1 | DEBIAN-CVE-2022-42927 |
| Debian:13 | thunderbird | 1:102.4.0-1 | DEBIAN-CVE-2022-42927 |
| Debian:14 | thunderbird | 1:102.4.0-1 | DEBIAN-CVE-2022-42927 |
| Rocky Linux:8 | firefox | 0:102.4.0-1.el8_6 | RLSA-2022:7070 |
| Rocky Linux:8 | firefox | 0:102.4.0-1.el8_6.0.1 | RLSA-2022:7070 |
| Rocky Linux:8 | thunderbird | 0:102.4.0-1.el8_6 | RLSA-2022:7190 |
| Rocky Linux:8 | thunderbird | 0:102.4.0-1.el8_6.0.1 | RLSA-2022:7190 |
| Ubuntu:22.04:LTS | thunderbird | 1:102.4.2+build2-0ubuntu0.22.04.1 | USN-5724-1 |
| Ubuntu:22.04:LTS | thunderbird | 1:102.4.2+build2-0ubuntu0.22.04.1 | UBUNTU-CVE-2022-42927 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Firefox | unspecified – before 106 |
| Mozilla | Firefox ESR | unspecified – before 102.4 |
| Mozilla | Thunderbird | unspecified – before 102.4 |
Weakness: CWE-346 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N