Vulnerability · Published Sep 27, 2023 · Assigned by mozilla
CVE-2023-5168
Critical 9.8
In plain English
A critical-severity out-of-bounds write 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 1.1% (higher than 66% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
A compromised content process could have provided malicious data to `FilterNodeD2D1` resulting in an out-of-bounds write, leading to a potentially exploitable crash in a privileged process. *This bug only affects Firefox on Windows. Other operating systems are unaffected.* This vulnerability affects Firefox < 118, Firefox ESR < 115.3, and Thunderbird < 115.3.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.20 | firefox-esr | 115.3.0-r0 | ALPINE-CVE-2023-5168 |
| Alpine:v3.21 | firefox-esr | 115.3.0-r0 | ALPINE-CVE-2023-5168 |
| Alpine:v3.22 | firefox-esr | 115.3.0-r0 | ALPINE-CVE-2023-5168 |
| Alpine:v3.23 | firefox-esr | 115.3.0-r0 | ALPINE-CVE-2023-5168 |
| Ubuntu:22.04:LTS | mozjs102 | no fix listed | UBUNTU-CVE-2023-5168 |
| Ubuntu:24.04:LTS | mozjs102 | no fix listed | UBUNTU-CVE-2023-5168 |
| Ubuntu:22.04:LTS | mozjs78 | no fix listed | UBUNTU-CVE-2023-5168 |
| Ubuntu:22.04:LTS | mozjs91 | no fix listed | UBUNTU-CVE-2023-5168 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Firefox | unspecified – before 118 |
| Mozilla | Firefox ESR | unspecified – before 115.3 |
| Mozilla | Thunderbird | unspecified – before 115.3 |
Weakness: CWE-787 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H