Vulnerability · Published Feb 20, 2024 · Assigned by mozilla

CVE-2024-1549

Medium 6.1

In plain English

A medium-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 0.5% (higher than 45% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)6.1Medium
Exploit odds (30 days)0.5%top 55.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

If a website set a large custom cursor, portions of the cursor could have overlapped with the permission dialog, potentially resulting in user confusion and unexpected granted permissions. This vulnerability affects Firefox < 123, Firefox ESR < 115.8, and Thunderbird < 115.8.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
AlmaLinux:8firefox115.8.0-1.el8_9.almaALSA-2024:0955
AlmaLinux:9firefox115.8.0-1.el9_3.almaALSA-2024:0952
AlmaLinux:9firefox-x11115.8.0-1.el9_3.almaALSA-2024:0952
AlmaLinux:8thunderbird115.8.0-1.el8_9.almaALSA-2024:0964
AlmaLinux:9thunderbird115.8.0-1.el9_3.almaALSA-2024:0963
Debian:12firefox-esr115.8.0esr-1~deb12u1DSA-5627-1
Debian:12firefox-esr115.8.0esr-1~deb12u1DEBIAN-CVE-2024-1549
Debian:13firefox-esr115.8.0esr-1DEBIAN-CVE-2024-1549
Debian:14firefox-esr115.8.0esr-1DEBIAN-CVE-2024-1549
Debian:12thunderbird1:115.8.0-1~deb12u1DEBIAN-CVE-2024-1549
Debian:12thunderbird1:115.8.0-1~deb12u1DSA-5630-1
Debian:13thunderbird1:115.8.0-1DEBIAN-CVE-2024-1549
Debian:14thunderbird1:115.8.0-1DEBIAN-CVE-2024-1549
Rocky Linux:8firefox0:115.8.0-1.el8_9RLSA-2024:0955
Ubuntu:22.04:LTSmozjs102no fix listedUBUNTU-CVE-2024-1549
Ubuntu:24.04:LTSmozjs102no fix listedUBUNTU-CVE-2024-1549
Ubuntu:22.04:LTSmozjs78no fix listedUBUNTU-CVE-2024-1549
Ubuntu:22.04:LTSmozjs91no fix listedUBUNTU-CVE-2024-1549
Ubuntu:22.04:LTSthunderbird1:115.8.1+build1-0ubuntu0.22.04.1UBUNTU-CVE-2024-1549
Ubuntu:22.04:LTSthunderbird1:115.8.1+build1-0ubuntu0.22.04.1USN-6669-1

Affected products (as reported)

VendorProductVersions
Mozilla Firefox unspecified – before 123
Mozilla Firefox ESR unspecified – before 115.8
Mozilla Thunderbird unspecified – before 115.8

References