Medium severity · published Apr 16, 2024
CVE-2024-3859
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
5.9
CVSS
0.7%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:H/A:N
Attack vector
Network
Complexity
High
Privileges
None
User interaction
Required
Confidentiality
Low
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 52% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FI
Firefox · Mozilla
before 125 · source: vendor, NVD, CISA
FE
Firefox ESR · Mozilla
before 115.10 · source: vendor, CISA
TH
Thunderbird · Mozilla
before 115.10 · source: vendor, NVD, CISA
DL
Debian Linux · Debian
10.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-3859
CVE.org
https://www.cve.org/CVERecord?id=CVE-2024-3859
Issue Tracking
https://bugzilla.mozilla.org/show_bug.cgi?id=1874489
Mailing List
https://lists.debian.org/debian-lts-announce/2024/04/msg00012.html
Mailing List
https://lists.debian.org/debian-lts-announce/2024/04/msg00013.html
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2024-18/
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2024-19/
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2024-20/
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