Mozilla Firefox up to 124 on 32-bit OpenType Font Parser out-of-bounds

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.1$0-$5k0.00

A vulnerability classified as problematic was found in Mozilla Firefox up to 124 on 32-bit. Affected by this vulnerability is an unknown code of the component OpenType Font Parser. The manipulation with an unknown input leads to a out-of-bounds vulnerability. The CWE definition for the vulnerability is CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect confidentiality. The summary by CVE is:

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 and Firefox ESR < 115.10.

The advisory is shared at bugzilla.mozilla.org. This vulnerability is known as CVE-2024-3859 since 04/15/2024. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 04/16/2024).

Upgrading to version 125 eliminates this vulnerability.

The entries VDB-257265, VDB-260927, VDB-260931 and VDB-260932 are related to this item.

Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔒
VulDB CVSS-BT Score: 🔒
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.1

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Out-of-bounds
CWE: CWE-125 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Firefox 125

Timelineinfo

04/15/2024 CVE reserved
04/16/2024 +1 days Advisory disclosed
04/16/2024 +0 days VulDB entry created
05/23/2024 +37 days VulDB entry last update

Sourcesinfo

Vendor: mozilla.org
Product: mozilla.org

Advisory: DLA 3791-1
Status: Confirmed

CVE: CVE-2024-3859 (🔒)
See also: 🔒

Entryinfo

Created: 04/16/2024 19:23
Updated: 05/23/2024 13:18
Changes: 04/16/2024 19:23 (56), 05/23/2024 13:18 (1)
Complete: 🔍
Cache ID: 3:EA5:103

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