{"id":"UBUNTU-CVE-2023-4052","details":"The Firefox updater created a directory writable by non-privileged users. When uninstalling Firefox, any files in that directory would be recursively deleted with the permissions of the uninstalling user account. This could be combined with creation of a junction (a form of symbolic link) to allow arbitrary file deletion controlled by the non-privileged user. *This bug only affects Firefox on Windows. Other operating systems are unaffected.* This vulnerability affects Firefox \u003c 116, Firefox ESR \u003c 115.1, and Thunderbird \u003c 115.1.","modified":"2026-04-22T14:11:20.764824Z","published":"2023-08-01T15:15:00Z","upstream":["CVE-2023-4052"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-4052"},{"type":"REPORT","url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1824420"},{"type":"REPORT","url":"https://www.mozilla.org/security/advisories/mfsa2023-31/"},{"type":"REPORT","url":"https://www.mozilla.org/security/advisories/mfsa2023-29/"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2023-4052"}],"affected":[{"package":{"name":"mozjs52","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/mozjs52@52.9.1-0ubuntu0.18.04.1?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["52.3.1-0ubuntu3","52.3.1-7fakesync1","52.8.1-0ubuntu0.18.04.1","52.9.1-0ubuntu0.18.04.1"],"ecosystem_specific":{"binaries":[{"binary_name":"libmozjs-52-0","binary_version":"52.9.1-0ubuntu0.18.04.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-4052.json"}},{"package":{"name":"mozjs38","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/mozjs38@38.8.0~repack1-0ubuntu4?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["38.8.0~repack1-0ubuntu1","38.8.0~repack1-0ubuntu3","38.8.0~repack1-0ubuntu4"],"ecosystem_specific":{"binaries":[{"binary_name":"libmozjs-38-0","binary_version":"38.8.0~repack1-0ubuntu4"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-4052.json"}},{"package":{"name":"mozjs68","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/mozjs68@68.6.0-1ubuntu1?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["68.5.0-1~fakesync","68.5.0-2~fakesync","68.6.0-1","68.6.0-1ubuntu1"],"ecosystem_specific":{"binaries":[{"binary_name":"libmozjs-68-0","binary_version":"68.6.0-1ubuntu1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-4052.json"}},{"package":{"name":"mozjs52","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/mozjs52@52.9.1-1ubuntu3?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["52.9.1-1build1","52.9.1-1ubuntu3"],"ecosystem_specific":{"binaries":[{"binary_name":"libmozjs-52-0","binary_version":"52.9.1-1ubuntu3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-4052.json"}},{"package":{"name":"mozjs102","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/mozjs102@102.15.1-0ubuntu0.22.04.1?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["102.11.0-0ubuntu0.22.04.1","102.12.0-0ubuntu0.22.04.1","102.13.0-0ubuntu0.22.04.1","102.15.1-0ubuntu0.22.04.1"],"ecosystem_specific":{"binaries":[{"binary_version":"102.15.1-0ubuntu0.22.04.1","binary_name":"libmozjs-102-0"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-4052.json"}},{"package":{"name":"mozjs78","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/mozjs78@78.15.0-4ubuntu1?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["78.13.0-1","78.15.0-2","78.15.0-4ubuntu1"],"ecosystem_specific":{"binaries":[{"binary_name":"libmozjs-78-0","binary_version":"78.15.0-4ubuntu1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-4052.json"}},{"package":{"name":"mozjs91","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/mozjs91@91.10.0-0ubuntu1?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["91.5.1-0ubuntu1","91.6.0-1","91.6.0-2","91.7.0-2","91.10.0-0ubuntu1"],"ecosystem_specific":{"binaries":[{"binary_name":"libmozjs-91-0","binary_version":"91.10.0-0ubuntu1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-4052.json"}},{"package":{"name":"mozjs102","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/mozjs102@102.15.1-3ubuntu2?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["102.15.1-1","102.15.1-3ubuntu2"],"ecosystem_specific":{"binaries":[{"binary_name":"libmozjs-102-0t64","binary_version":"102.15.1-3ubuntu2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-4052.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N"},{"type":"Ubuntu","score":"medium"}]}