When using X11, text selected by the page using the Selection API was erroneously copied into the primary selection, a temporary storage not unlike the clipboard.
This bug only affects Firefox on X11. Other systems are unaffected. This vulnerability affects Firefox < 120, Firefox ESR < 115.5.0, and Thunderbird < 115.5.
CPE | Name | Operator | Version |
---|---|---|---|
debian_linux | eq | 10.0 | |
debian_linux | eq | 11.0 | |
debian_linux | eq | 12.0 | |
firefox | lt | 120.0 | |
firefox_esr | lt | 115.5.0 | |
thunderbird | lt | 115.5 |
bugzilla.mozilla.org/show_bug.cgi?id=1855345
lists.debian.org/debian-lts-announce/2023/11/msg00017.html
lists.debian.org/debian-lts-announce/2023/11/msg00030.html
www.debian.org/security/2023/dsa-5561
www.mozilla.org/security/advisories/mfsa2023-49/
www.mozilla.org/security/advisories/mfsa2023-50/
www.mozilla.org/security/advisories/mfsa2023-52/