Vulnerability · Published Jul 12, 2023 · Assigned by mozilla
CVE-2023-3600Use-after-free in workers
High 8.8
In plain English
A high-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 51% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)8.8High
Exploit odds (30 days)0.6%top 49.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
During the worker lifecycle, a use-after-free condition could have occurred, which could have led to a potentially exploitable crash. This vulnerability affects Firefox < 115.0.2, Firefox ESR < 115.0.2, and Thunderbird < 115.0.1.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:9 | firefox | 115.3.1-1.el9_2.alma.1 | ALSA-2023:5434 |
| AlmaLinux:9 | firefox-x11 | 115.3.1-1.el9_2.alma.1 | ALSA-2023:5434 |
| AlmaLinux:9 | thunderbird | 115.3.1-1.el9_2.alma | ALSA-2023:5435 |
| Alpine:v3.20 | firefox-esr | 115.0.2-r0 | ALPINE-CVE-2023-3600 |
| Alpine:v3.21 | firefox-esr | 115.0.2-r0 | ALPINE-CVE-2023-3600 |
| Alpine:v3.22 | firefox-esr | 115.0.2-r0 | ALPINE-CVE-2023-3600 |
| Alpine:v3.23 | firefox-esr | 115.0.2-r0 | ALPINE-CVE-2023-3600 |
| Rocky Linux:8 | thunderbird | 0:115.3.1-1.el8_8 | RLSA-2023:5428 |
| Rocky Linux:9 | thunderbird | 0:115.3.1-1.el9_2 | RLSA-2023:5435 |
| Ubuntu:22.04:LTS | thunderbird | 1:115.3.1+build1-0ubuntu0.22.04.2 | UBUNTU-CVE-2023-3600 |
| Ubuntu:22.04:LTS | thunderbird | 1:115.3.1+build1-0ubuntu0.22.04.2 | USN-6405-1 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Firefox | unspecified – before 115.0.2 |
| Mozilla | Firefox ESR | unspecified – before 115.0.2 |
| Mozilla | Thunderbird | unspecified – before 115.0.1 |