{"id":"RLSA-2025:8756","summary":"Important: thunderbird security update","details":"Mozilla Thunderbird is a standalone mail and newsgroup client.\n\nSecurity Fix(es):\n\n* thunderbird: JavaScript Execution via Spoofed PDF Attachment and file:/// Link (CVE-2025-3909)\n\n* thunderbird: Sender Spoofing via Malformed From Header in Thunderbird (CVE-2025-3875)\n\n* thunderbird: Unsolicited File Download, Disk Space Exhaustion, and Credential Leakage via mailbox:/// Links (CVE-2025-3877)\n\n* thunderbird: Tracking Links in Attachments Bypassed Remote Content Blocking (CVE-2025-3932)\n\n* firefox: thunderbird: Out-of-bounds access when resolving Promise objects (CVE-2025-4918)\n\n* firefox: thunderbird: Out-of-bounds access when optimizing linear sums (CVE-2025-4919)\n\n* firefox: thunderbird: Clickjacking vulnerability could have led to leaking saved payment card details (CVE-2025-5267)\n\n* firefox: thunderbird: Potential local code execution in ?Copy as cURL? command (CVE-2025-5264)\n\n* firefox: thunderbird: Memory safety bugs (CVE-2025-5268)\n\n* firefox: thunderbird: Script element events leaked cross-origin resource status (CVE-2025-5266)\n\n* firefox: thunderbird: Error handling for script execution was incorrectly isolated from web content (CVE-2025-5263)\n\n* firefox: thunderbird: Memory safety bug (CVE-2025-5269)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.","modified":"2025-07-29T15:00:12.450029Z","published":"2025-07-29T13:38:41.630147Z","upstream":["CVE-2025-3875","CVE-2025-3877","CVE-2025-3909","CVE-2025-3932","CVE-2025-4918","CVE-2025-4919","CVE-2025-5263","CVE-2025-5264","CVE-2025-5266","CVE-2025-5267","CVE-2025-5268","CVE-2025-5269","CVE-2025-5283"],"references":[{"type":"ADVISORY","url":"https://errata.rockylinux.org/RLSA-2025:8756"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2366283"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2366287"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2366291"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2366297"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2367016"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2367018"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2368749"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2368750"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2368751"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2368752"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2368755"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2368756"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2368757"}],"affected":[{"package":{"name":"thunderbird","ecosystem":"Rocky Linux:8","purl":"pkg:rpm/rocky-linux/thunderbird?distro=rocky-linux-8&epoch=0"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:128.11.0-1.el8_10"}],"database_specific":{"yum_repository":"AppStream"}}],"database_specific":{"source":"https://storage.googleapis.com/resf-osv-data/RLSA-2025:8756.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"}],"credits":[{"name":"Rocky Enterprise Software Foundation"},{"name":"Red Hat"}]}