Mozilla Firefox up to 107 memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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7.4$5k-$25k0.00

Summaryinfo

A vulnerability was found in Mozilla Firefox up to 107. It has been classified as critical. This affects an unknown function. This manipulation causes memory corruption. This vulnerability is registered as CVE-2022-46878. Remote exploitation of the attack is possible. No exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as critical was found in Mozilla Firefox up to 107 (Web Browser). Affected by this vulnerability is an unknown code block. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was published 12/13/2022 by Randell Jesup, Valentin Gosu and Olli Pettay as Memory safety bugs fixed in Firefox 108 and Firefox ESR 102.6 as confirmed advisory (Website). It is possible to read the advisory at bugzilla.mozilla.org. The advisory contains:

Mozilla developers Randell Jesup, Valentin Gosu, Olli Pettay, and the Mozilla Fuzzing Team reported memory safety bugs present in Firefox 107 and Firefox ESR 102.5. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code.
This vulnerability is known as CVE-2022-46878. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 04/15/2025).

The vulnerability scanner Nessus provides a plugin with the ID 208639 (CentOS 7 : thunderbird (RHSA-2022:9079)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 108 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (208639). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.4

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 208639
Nessus Name: CentOS 7 : thunderbird (RHSA-2022:9079)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: Firefox 108

Timelineinfo

12/09/2022 🔍
12/13/2022 +4 days 🔍
12/13/2022 +0 days 🔍
12/19/2022 +6 days 🔍
04/28/2025 +861 days 🔍

Sourcesinfo

Vendor: mozilla.org
Product: mozilla.org

Advisory: Memory safety bugs fixed in Firefox 108 and Firefox ESR 102.6
Researcher: Randell Jesup, Valentin Gosu, Olli Pettay
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2022-46878 (🔍)
GCVE (CVE): GCVE-0-2022-46878
GCVE (VulDB): GCVE-100-216235

Entryinfo

Created: 12/19/2022 09:36
Updated: 04/28/2025 12:27
Changes: 12/19/2022 09:36 (17), 12/19/2022 09:40 (28), 01/15/2023 13:16 (2), 01/15/2023 13:22 (11), 10/12/2024 07:56 (17), 04/15/2025 16:43 (1), 04/28/2025 12:27 (3)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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