Mozilla Firefox up to 104 H264 Decoder out-of-bounds

CVSS Meta Temp Score
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CTI Interest Score
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4.8$0-$5k0.00

Summaryinfo

A vulnerability was found in Mozilla Firefox up to 104. It has been classified as problematic. This vulnerability affects unknown code of the component H264 Decoder. The manipulation leads to out-of-bounds. This vulnerability is referenced as CVE-2022-3266. Remote exploitation of the attack is possible. No exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Mozilla Firefox up to 104 (Web Browser) and classified as problematic. This issue affects an unknown code block of the component H264 Decoder. The manipulation with an unknown input leads to a out-of-bounds vulnerability. Using CWE to declare the problem leads to CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. Impacted is confidentiality. The summary by CVE is:

An out-of-bounds read can occur when decoding H264 video. This results in a potentially exploitable crash. This vulnerability affects Firefox ESR < 102.3, Thunderbird < 102.3, and Firefox < 105.

The weakness was published 09/20/2022 by Willy R. Vasquez as Bug 1767360 as confirmed advisory (Website). It is possible to read the advisory at bugzilla.mozilla.org. The advisory contains:

An out-of-bounds read can occur when decoding H264 video. This results in a potentially exploitable crash.
The identification of this vulnerability is CVE-2022-3266. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available.

Upgrading to version 105 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

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: 4.9
VulDB Meta Temp Score: 4.8

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

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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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: 🔍

Physical: Partially
Local: Yes
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: 🔍

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

Upgrade: Firefox 105

Timelineinfo

09/20/2022 🔍
09/20/2022 +0 days 🔍
09/22/2022 +2 days 🔍
09/29/2022 +7 days 🔍
04/15/2025 +929 days 🔍

Sourcesinfo

Vendor: mozilla.org
Product: mozilla.org

Advisory: Bug 1767360
Researcher: Willy R. Vasquez
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2022-3266 (🔍)
GCVE (CVE): GCVE-0-2022-3266
GCVE (VulDB): GCVE-100-209795

Entryinfo

Created: 09/29/2022 14:11
Updated: 04/15/2025 19:52
Changes: 09/29/2022 14:11 (18), 09/29/2022 14:15 (28), 10/25/2022 12:29 (1), 04/15/2025 19:52 (27)
Complete: 🔍
Cache ID: 216::103

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