Vulnerability · Published Dec 22, 2022 · Assigned by mozilla
CVE-2022-28285
Medium 6.5
In plain English
A medium-severity out-of-bounds read in Firefox from Mozilla. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.8% (higher than 56% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)6.5Medium
Exploit odds (30 days)0.8%top 43.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
When generating the assembly code for <code>MLoadTypedArrayElementHole</code>, an incorrect AliasSet was used. In conjunction with another vulnerability this could have been used for an out of bounds memory read. 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-2022-28285 |
| Alpine:v3.21 | firefox | 99.0-r0 | ALPINE-CVE-2022-28285 |
| Alpine:v3.22 | firefox | 99.0-r0 | ALPINE-CVE-2022-28285 |
| Alpine:v3.23 | firefox | 99.0-r0 | ALPINE-CVE-2022-28285 |
| Alpine:v3.20 | firefox-esr | 91.8.0-r0 | ALPINE-CVE-2022-28285 |
| Alpine:v3.21 | firefox-esr | 91.8.0-r0 | ALPINE-CVE-2022-28285 |
| Alpine:v3.22 | firefox-esr | 91.8.0-r0 | ALPINE-CVE-2022-28285 |
| Alpine:v3.23 | firefox-esr | 91.8.0-r0 | ALPINE-CVE-2022-28285 |
| Alpine:v3.21 | librewolf | 99.0-r0 | ALPINE-CVE-2022-28285 |
| Alpine:v3.22 | librewolf | 99.0-r0 | ALPINE-CVE-2022-28285 |
| Alpine:v3.23 | librewolf | 99.0-r0 | ALPINE-CVE-2022-28285 |
| Alpine:v3.24 | librewolf | 99.0-r0 | ALPINE-CVE-2022-28285 |
| Alpine:v3.20 | thunderbird | 91.8.0-r0 | ALPINE-CVE-2022-28285 |
| Alpine:v3.21 | thunderbird | 91.8.0-r0 | ALPINE-CVE-2022-28285 |
| Alpine:v3.22 | thunderbird | 91.8.0-r0 | ALPINE-CVE-2022-28285 |
| Alpine:v3.23 | thunderbird | 91.8.0-r0 | ALPINE-CVE-2022-28285 |
| Debian:12 | firefox-esr | 91.8.0esr-1 | DEBIAN-CVE-2022-28285 |
| Debian:13 | firefox-esr | 91.8.0esr-1 | DEBIAN-CVE-2022-28285 |
| Debian:14 | firefox-esr | 91.8.0esr-1 | DEBIAN-CVE-2022-28285 |
| Debian:12 | thunderbird | 1:91.8.0-1 | DEBIAN-CVE-2022-28285 |
| Debian:13 | thunderbird | 1:91.8.0-1 | DEBIAN-CVE-2022-28285 |
| Debian:14 | thunderbird | 1:91.8.0-1 | DEBIAN-CVE-2022-28285 |
| 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-2022-28285 |
| Ubuntu:22.04:LTS | mozjs78 | no fix listed | UBUNTU-CVE-2022-28285 |
| Ubuntu:22.04:LTS | mozjs91 | 91.10.0-0ubuntu1 | UBUNTU-CVE-2022-28285 |
| Ubuntu:22.04:LTS | mozjs91 | 91.10.0-0ubuntu1 | USN-5494-1 |
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-125 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N