Vulnerability · Published Oct 1, 2024 · Assigned by mozilla
CVE-2024-9398
Medium 5.3
In plain English
A medium-severity security flaw in Firefox from Mozilla. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 47% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)5.3Medium
Exploit odds (30 days)0.6%top 52.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
By checking the result of calls to `window.open` with specifically set protocol handlers, an attacker could determine if the application which implements that protocol handler is installed. This vulnerability affects Firefox < 131, Firefox ESR < 128.3, Thunderbird < 128.3, and Thunderbird < 131.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:8 | firefox | 128.3.0-1.el8_10.alma.1 | ALSA-2024:7700 |
| AlmaLinux:8 | thunderbird | 128.3.0-1.el8_10.alma.1 | ALSA-2024:7699 |
| AlmaLinux:9 | thunderbird | 128.3.0-1.el9_4.alma.1 | ALSA-2024:7552 |
| Debian:13 | thunderbird | 1:128.3.0esr-1 | DEBIAN-CVE-2024-9398 |
| Debian:14 | thunderbird | 1:128.3.0esr-1 | DEBIAN-CVE-2024-9398 |
| Rocky Linux:8 | firefox | 0:128.3.0-1.el8_10 | RLSA-2024:7700 |
| Rocky Linux:8 | thunderbird | 0:128.3.0-1.el8_10 | RLSA-2024:7699 |
| Ubuntu:22.04:LTS | mozjs102 | no fix listed | UBUNTU-CVE-2024-9398 |
| Ubuntu:24.04:LTS | mozjs102 | no fix listed | UBUNTU-CVE-2024-9398 |
| Ubuntu:24.04:LTS | mozjs115 | no fix listed | UBUNTU-CVE-2024-9398 |
| Ubuntu:22.04:LTS | mozjs78 | no fix listed | UBUNTU-CVE-2024-9398 |
| Ubuntu:22.04:LTS | mozjs91 | no fix listed | UBUNTU-CVE-2024-9398 |
| Ubuntu:22.04:LTS | thunderbird | 1:140.7.1+build1-0ubuntu0.22.04.1 | UBUNTU-CVE-2024-9398 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Firefox | unspecified – before 131 |
| Mozilla | Firefox ESR | unspecified – before 128.3 |
| Mozilla | Thunderbird | unspecified – before 128.3 |
| Mozilla | Thunderbird | unspecified – before 131 |
Weakness: CWE-203 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N