Vulnerability · Published Dec 22, 2022 · Assigned by mozilla
CVE-2022-22747
Medium 6.5
In plain English
A medium-severity improper certificate validation 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 0.7% (higher than 52% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)6.5Medium
Exploit odds (30 days)0.7%top 47.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
After accepting an untrusted certificate, handling an empty pkcs7 sequence as part of the certificate data could have lead to a crash. This crash is believed to be unexploitable. This vulnerability affects Firefox ESR < 91.5, Firefox < 96, and Thunderbird < 91.5.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:8 | firefox | 91.5.0-1.el8_5.alma | ALSA-2022:0130 |
| AlmaLinux:8 | thunderbird | 91.5.0-1.el8_5.alma | ALSA-2022:0129 |
| AlmaLinux:8 | thunderbird | 91.5.0-1.el8_5.alma.plus | ALSA-2022:0129 |
| Alpine:v3.20 | firefox | 97.0-r0 | ALPINE-CVE-2022-22747 |
| Alpine:v3.21 | firefox | 97.0-r0 | ALPINE-CVE-2022-22747 |
| Alpine:v3.22 | firefox | 97.0-r0 | ALPINE-CVE-2022-22747 |
| Alpine:v3.23 | firefox | 97.0-r0 | ALPINE-CVE-2022-22747 |
| Alpine:v3.20 | firefox-esr | 91.5.0-r0 | ALPINE-CVE-2022-22747 |
| Alpine:v3.21 | firefox-esr | 91.5.0-r0 | ALPINE-CVE-2022-22747 |
| Alpine:v3.22 | firefox-esr | 91.5.0-r0 | ALPINE-CVE-2022-22747 |
| Alpine:v3.23 | firefox-esr | 91.5.0-r0 | ALPINE-CVE-2022-22747 |
| Alpine:v3.21 | librewolf | 97.0-r0 | ALPINE-CVE-2022-22747 |
| Alpine:v3.22 | librewolf | 97.0-r0 | ALPINE-CVE-2022-22747 |
| Alpine:v3.23 | librewolf | 97.0-r0 | ALPINE-CVE-2022-22747 |
| Alpine:v3.24 | librewolf | 97.0-r0 | ALPINE-CVE-2022-22747 |
| Alpine:v3.20 | thunderbird | 91.5.0-r0 | ALPINE-CVE-2022-22747 |
| Alpine:v3.21 | thunderbird | 91.5.0-r0 | ALPINE-CVE-2022-22747 |
| Alpine:v3.22 | thunderbird | 91.5.0-r0 | ALPINE-CVE-2022-22747 |
| Alpine:v3.23 | thunderbird | 91.5.0-r0 | ALPINE-CVE-2022-22747 |
| Debian:12 | firefox-esr | 91.5.0esr-1 | DEBIAN-CVE-2022-22747 |
| Debian:13 | firefox-esr | 91.5.0esr-1 | DEBIAN-CVE-2022-22747 |
| Debian:14 | firefox-esr | 91.5.0esr-1 | DEBIAN-CVE-2022-22747 |
| Debian:12 | nss | 2:3.73-1 | DEBIAN-CVE-2022-22747 |
| Debian:13 | nss | 2:3.73-1 | DEBIAN-CVE-2022-22747 |
| Debian:14 | nss | 2:3.73-1 | DEBIAN-CVE-2022-22747 |
| Debian:12 | thunderbird | 1:91.5.0-1 | DEBIAN-CVE-2022-22747 |
| Debian:13 | thunderbird | 1:91.5.0-1 | DEBIAN-CVE-2022-22747 |
| Debian:14 | thunderbird | 1:91.5.0-1 | DEBIAN-CVE-2022-22747 |
| Rocky Linux:8 | firefox | 0:91.5.0-1.el8_5 | RLSA-2022:0130 |
| Rocky Linux:8 | thunderbird | 0:91.5.0-1.el8_5 | RLSA-2022:0129 |
| Ubuntu:22.04:LTS | firefox | 96.0+build2-0ubuntu1 | UBUNTU-CVE-2022-22747 |
| Ubuntu:22.04:LTS | mozjs78 | no fix listed | UBUNTU-CVE-2022-22747 |
| Ubuntu:22.04:LTS | nss | 2:3.68.2-0ubuntu1.1 | USN-5506-1 |
| Ubuntu:22.04:LTS | thunderbird | 1:91.5.0+build1-0ubuntu1 | UBUNTU-CVE-2022-22747 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Firefox ESR | unspecified – before 91.5 |
| Mozilla | Firefox | unspecified – before 96 |
| Mozilla | Thunderbird | unspecified – before 91.5 |
Weakness: CWE-295 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H