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Vulnerability · Published Oct 24, 2023 · Assigned by mozilla

CVE-2023-5730

Critical 9.8

In plain English

A critical-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 1.5% (higher than 75% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)9.8Critical
Exploit odds (30 days)1.5%top 25.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

Memory safety bugs present in Firefox 118, Firefox ESR 115.3, and Thunderbird 115.3. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 119, Firefox ESR < 115.4, and Thunderbird < 115.4.1.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
AlmaLinux:8firefox115.4.0-1.el8_8.alma.1ALSA-2023:6187
AlmaLinux:9firefox115.4.0-1.el9_2.alma.1ALSA-2023:6188
AlmaLinux:9firefox-x11115.4.0-1.el9_2.alma.1ALSA-2023:6188
AlmaLinux:8thunderbird115.4.1-1.el8_8.alma.1ALSA-2023:6194
AlmaLinux:9thunderbird115.4.1-1.el9_2.almaALSA-2023:6191
Alpine:v3.20firefox119.0-r0ALPINE-CVE-2023-5730
Alpine:v3.21firefox119.0-r0ALPINE-CVE-2023-5730
Alpine:v3.22firefox119.0-r0ALPINE-CVE-2023-5730
Alpine:v3.23firefox119.0-r0ALPINE-CVE-2023-5730
Alpine:v3.20firefox-esr115.4.0-r0ALPINE-CVE-2023-5730
Alpine:v3.21firefox-esr115.4.0-r0ALPINE-CVE-2023-5730
Alpine:v3.22firefox-esr115.4.0-r0ALPINE-CVE-2023-5730
Alpine:v3.23firefox-esr115.4.0-r0ALPINE-CVE-2023-5730
Alpine:v3.22librewolf119.0-r0ALPINE-CVE-2023-5730
Alpine:v3.23librewolf119.0-r0ALPINE-CVE-2023-5730
Alpine:v3.24librewolf119.0-r0ALPINE-CVE-2023-5730
Alpine:v3.20thunderbird115.4.1-r0ALPINE-CVE-2023-5730
Alpine:v3.21thunderbird115.4.1-r0ALPINE-CVE-2023-5730
Alpine:v3.22thunderbird115.4.1-r0ALPINE-CVE-2023-5730
Alpine:v3.23thunderbird115.4.1-r0ALPINE-CVE-2023-5730
Debian:12firefox-esr115.4.0esr-1~deb12u1DSA-5535-1
Debian:12firefox-esr115.4.0esr-1~deb12u1DEBIAN-CVE-2023-5730
Debian:13firefox-esr115.4.0esr-1DEBIAN-CVE-2023-5730
Debian:14firefox-esr115.4.0esr-1DEBIAN-CVE-2023-5730
Debian:12thunderbird1:115.4.1-1~deb12u1DEBIAN-CVE-2023-5730
Debian:12thunderbird1:115.4.1-1~deb12u1DSA-5538-1
Debian:13thunderbird1:115.4.1-1DEBIAN-CVE-2023-5730
Debian:14thunderbird1:115.4.1-1DEBIAN-CVE-2023-5730
Rocky Linux:9firefox0:115.4.0-1.el9_2RLSA-2023:6188
Ubuntu:22.04:LTSmozjs102no fix listedUBUNTU-CVE-2023-5730
Ubuntu:24.04:LTSmozjs102no fix listedUBUNTU-CVE-2023-5730
Ubuntu:22.04:LTSmozjs78no fix listedUBUNTU-CVE-2023-5730
Ubuntu:22.04:LTSmozjs91no fix listedUBUNTU-CVE-2023-5730
Ubuntu:22.04:LTSthunderbird1:115.4.1+build1-0ubuntu0.22.04.1USN-6468-1
Ubuntu:22.04:LTSthunderbird1:115.4.1+build1-0ubuntu0.22.04.1UBUNTU-CVE-2023-5730
Ubuntu:24.04:LTSthunderbird1:115.4.1+build1-0ubuntu1UBUNTU-CVE-2023-5730

Affected products (as reported)

VendorProductVersions
Mozilla Firefox unspecified – before 119
Mozilla Firefox ESR unspecified – before 115.4
Mozilla Thunderbird unspecified – before 115.4.1

References