Vulnerability · Published Jan 23, 2024 · Assigned by mozilla
CVE-2024-0743
High 7.5
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 1.3% (higher than 70% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)7.5High
Exploit odds (30 days)1.3%top 29.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
An unchecked return value in TLS handshake code could have caused a potentially exploitable crash. This vulnerability affects Firefox < 122, Firefox ESR < 115.9, and Thunderbird < 115.9.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:8 | firefox | 115.9.1-1.el8_9.alma.1 | ALSA-2024:1484 |
| AlmaLinux:9 | firefox | 115.9.1-1.el9_3.alma.1 | ALSA-2024:1485 |
| AlmaLinux:9 | firefox-x11 | 115.9.1-1.el9_3.alma.1 | ALSA-2024:1485 |
| AlmaLinux:8 | thunderbird | 115.9.0-1.el8_9.alma.1 | ALSA-2024:1494 |
| AlmaLinux:9 | thunderbird | 115.9.0-1.el9_3.alma.1 | ALSA-2024:1493 |
| Debian:12 | firefox-esr | 115.9.0esr-1~deb12u1 | DEBIAN-CVE-2024-0743 |
| Debian:12 | firefox-esr | 115.9.0esr-1~deb12u1 | DSA-5643-1 |
| Debian:13 | firefox-esr | 115.9.0esr-1 | DEBIAN-CVE-2024-0743 |
| Debian:14 | firefox-esr | 115.9.0esr-1 | DEBIAN-CVE-2024-0743 |
| Debian:12 | nss | 2:3.87.1-1+deb12u1 | DEBIAN-CVE-2024-0743 |
| Debian:12 | nss | 2:3.87.1-1+deb12u1 | DSA-5807-1 |
| Debian:13 | nss | 2:3.96.1-1 | DEBIAN-CVE-2024-0743 |
| Debian:14 | nss | 2:3.96.1-1 | DEBIAN-CVE-2024-0743 |
| Debian:12 | thunderbird | 1:115.9.0-1~deb12u1 | DSA-5644-1 |
| Debian:12 | thunderbird | 1:115.9.0-1~deb12u1 | DEBIAN-CVE-2024-0743 |
| Debian:13 | thunderbird | 1:115.9.0-1 | DEBIAN-CVE-2024-0743 |
| Debian:14 | thunderbird | 1:115.9.0-1 | DEBIAN-CVE-2024-0743 |
| Rocky Linux:8 | firefox | 0:115.9.1-1.el8_9 | RLSA-2024:1484 |
| Rocky Linux:8 | thunderbird | 0:115.9.0-1.el8_9 | RLSA-2024:1494 |
| Ubuntu:22.04:LTS | mozjs102 | no fix listed | UBUNTU-CVE-2024-0743 |
| Ubuntu:24.04:LTS | mozjs102 | no fix listed | UBUNTU-CVE-2024-0743 |
| Ubuntu:22.04:LTS | mozjs78 | no fix listed | UBUNTU-CVE-2024-0743 |
| Ubuntu:22.04:LTS | mozjs91 | no fix listed | UBUNTU-CVE-2024-0743 |
| Ubuntu:22.04:LTS | thunderbird | 1:115.9.0+build1-0ubuntu0.22.04.1 | UBUNTU-CVE-2024-0743 |
| Ubuntu:22.04:LTS | thunderbird | 1:115.9.0+build1-0ubuntu0.22.04.1 | USN-6717-1 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Firefox | unspecified – before 122 |
| Mozilla | Firefox ESR | unspecified – before 115.9 |
| Mozilla | Thunderbird | unspecified – before 115.9 |
Weakness: CWE-252 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1867408
- https://lists.debian.org/debian-lts-announce/2024/03/msg00010.html
- https://www.mozilla.org/security/advisories/mfsa2024-01/
- https://www.mozilla.org/security/advisories/mfsa2024-13/
- https://www.mozilla.org/security/advisories/mfsa2024-14/
- https://lists.debian.org/debian-lts-announce/2024/03/msg00022.html
- https://lists.debian.org/debian-lts-announce/2024/03/msg00028.html
- https://lists.debian.org/debian-lts-announce/2024/10/msg00028.html