Vulnerability · Published Dec 22, 2022 · Assigned by mozilla
CVE-2022-1097
Medium 6.5
In plain English
A medium-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 1.0% (higher than 61% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)6.5Medium
Exploit odds (30 days)1.0%top 38.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
<code>NSSToken</code> objects were referenced via direct points, and could have been accessed in an unsafe way on different threads, leading to a use-after-free and potentially exploitable crash. This vulnerability affects Thunderbird < 91.8, Firefox < 99, and Firefox ESR < 91.8.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:8 | firefox | 91.8.0-1.el8_5.alma | ALSA-2022:1287 |
| AlmaLinux:8 | thunderbird | 91.8.0-1.el8_5.alma | ALSA-2022:1301 |
| AlmaLinux:8 | thunderbird | 91.8.0-1.el8_5.alma.plus | ALSA-2022:1301 |
| Alpine:v3.20 | firefox | 99.0-r0 | ALPINE-CVE-2022-1097 |
| Alpine:v3.21 | firefox | 99.0-r0 | ALPINE-CVE-2022-1097 |
| Alpine:v3.22 | firefox | 99.0-r0 | ALPINE-CVE-2022-1097 |
| Alpine:v3.23 | firefox | 99.0-r0 | ALPINE-CVE-2022-1097 |
| Alpine:v3.20 | firefox-esr | 91.8.0-r0 | ALPINE-CVE-2022-1097 |
| Alpine:v3.21 | firefox-esr | 91.8.0-r0 | ALPINE-CVE-2022-1097 |
| Alpine:v3.22 | firefox-esr | 91.8.0-r0 | ALPINE-CVE-2022-1097 |
| Alpine:v3.23 | firefox-esr | 91.8.0-r0 | ALPINE-CVE-2022-1097 |
| Alpine:v3.21 | librewolf | 99.0-r0 | ALPINE-CVE-2022-1097 |
| Alpine:v3.22 | librewolf | 99.0-r0 | ALPINE-CVE-2022-1097 |
| Alpine:v3.23 | librewolf | 99.0-r0 | ALPINE-CVE-2022-1097 |
| Alpine:v3.24 | librewolf | 99.0-r0 | ALPINE-CVE-2022-1097 |
| Alpine:v3.20 | nss | 3.76.1-r0 | ALPINE-CVE-2022-1097 |
| Alpine:v3.21 | nss | 3.76.1-r0 | ALPINE-CVE-2022-1097 |
| Alpine:v3.22 | nss | 3.76.1-r0 | ALPINE-CVE-2022-1097 |
| Alpine:v3.23 | nss | 3.76.1-r0 | ALPINE-CVE-2022-1097 |
| Alpine:v3.24 | nss | 3.76.1-r0 | ALPINE-CVE-2022-1097 |
| Alpine:v3.20 | thunderbird | 91.8.0-r0 | ALPINE-CVE-2022-1097 |
| Alpine:v3.21 | thunderbird | 91.8.0-r0 | ALPINE-CVE-2022-1097 |
| Alpine:v3.22 | thunderbird | 91.8.0-r0 | ALPINE-CVE-2022-1097 |
| Alpine:v3.23 | thunderbird | 91.8.0-r0 | ALPINE-CVE-2022-1097 |
| Debian:12 | firefox-esr | 91.8.0esr-1 | DEBIAN-CVE-2022-1097 |
| Debian:13 | firefox-esr | 91.8.0esr-1 | DEBIAN-CVE-2022-1097 |
| Debian:14 | firefox-esr | 91.8.0esr-1 | DEBIAN-CVE-2022-1097 |
| Debian:12 | thunderbird | 1:91.8.0-1 | DEBIAN-CVE-2022-1097 |
| Debian:13 | thunderbird | 1:91.8.0-1 | DEBIAN-CVE-2022-1097 |
| Debian:14 | thunderbird | 1:91.8.0-1 | DEBIAN-CVE-2022-1097 |
| Rocky Linux:8 | firefox | 0:91.8.0-1.el8_5 | RLSA-2022:1287 |
| Rocky Linux:8 | thunderbird | 0:91.8.0-1.el8_5 | RLSA-2022:1301 |
| Ubuntu:22.04:LTS | firefox | 1:1snap1-0ubuntu1 | UBUNTU-CVE-2022-1097 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Thunderbird | unspecified – before 91.8 |
| Mozilla | Firefox | unspecified – before 99 |
| Mozilla | Firefox ESR | unspecified – before 91.8 |
Weakness: CWE-416 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H