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On 32-bit versions there were integer-overflows that led to an out-of-bounds-read that potentially could be triggered by a malformed OpenType font. This vulnerability affects Firefox < 125, Firefox ESR < 115.10, and Thunderbird < 115.10.
Reserved 2024-04-15 | Published 2024-04-16 | Updated 2024-08-01 | Assigner mozillaInteger-overflow led to out-of-bounds-read in the OpenType sanitizer
Ronald Crane
bugzilla.mozilla.org/show_bug.cgi?id=1874489
lists.debian.org/debian-lts-announce/2024/04/msg00012.html
lists.debian.org/debian-lts-announce/2024/04/msg00013.html
www.mozilla.org/security/advisories/mfsa2024-18/
www.mozilla.org/security/advisories/mfsa2024-19/
www.mozilla.org/security/advisories/mfsa2024-20/
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