Mozilla Firefox up to 113 memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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7.9$5k-$25k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Mozilla Firefox up to 113. This affects an unknown function. This manipulation causes memory corruption. This vulnerability is registered as CVE-2023-34416. Remote exploitation of the attack is possible. No exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in Mozilla Firefox up to 113 (Web Browser). Affected by this vulnerability is an unknown functionality. 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 06/06/2023 by Gabriele Svelto, Andrew McCreight, Sean Feng and Sebastian Hengst as Memory safety bugs fixed in Firefox 114 and Firefox ESR 102.12 as confirmed advisory (Website). The advisory is shared at bugzilla.mozilla.org. The advisory contains:

Mozilla developers and community members Gabriele Svelto, Andrew McCreight,
the Mozilla Fuzzing Team, Sean Feng, and Sebastian Hengst reported memory
safety bugs present in Firefox 113 and Firefox ESR 102.11. 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-2023-34416. 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 $5k-$25k at the moment (estimation calculated on 06/20/2025).

The vulnerability scanner Nessus provides a plugin with the ID 239763 (TencentOS Server 4: thunderbird (TSSA-2024:0450)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 114 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 (239763). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.0
VulDB Meta Temp Score: 7.9

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

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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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: 239763
Nessus Name: TencentOS Server 4: thunderbird (TSSA-2024:0450)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: Firefox 114

Timelineinfo

06/05/2023 🔍
06/06/2023 +1 days 🔍
06/06/2023 +0 days 🔍
06/08/2023 +2 days 🔍
06/20/2025 +743 days 🔍

Sourcesinfo

Vendor: mozilla.org
Product: mozilla.org

Advisory: Memory safety bugs fixed in Firefox 114 and Firefox ESR 102.12
Researcher: Gabriele Svelto, Andrew McCreight, Sean Feng, Sebastian Hengst
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2023-34416 (🔍)
GCVE (CVE): GCVE-0-2023-34416
GCVE (VulDB): GCVE-100-231085

Entryinfo

Created: 06/08/2023 10:45
Updated: 06/20/2025 19:53
Changes: 06/08/2023 10:45 (18), 06/08/2023 10:48 (27), 07/07/2023 09:43 (2), 07/07/2023 09:44 (11), 06/20/2025 19:53 (17)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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