CVE-2022-22738

Mozilla: Heap-buffer-overflow in blendGaussianBlur

Severity Score

8.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Applying a CSS filter effect could have accessed out of bounds memory. This could have lead to a heap-buffer-overflow causing a potentially exploitable crash. This vulnerability affects Firefox ESR < 91.5, Firefox < 96, and Thunderbird < 91.5.

La aplicación de un efecto de filtro CSS podría haber accedido a la memoria fuera de los límites. Esto podría haber provocado un desbordamiento de búfer de almacenamiento dinámico provocando un fallo potencialmente explotable. Esta vulnerabilidad afecta a Firefox ESR < 91.5, Firefox < 96 y Thunderbird < 91.5.

The Mozilla Foundation Security Advisory describes this flaw as: Applying a CSS filter effect could have accessed out-of-bounds memory. This could have led to a heap-buffer-overflow, causing a potentially exploitable crash.

Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability. This update upgrades Firefox to version 91.5.0 ESR. Issues addressed include buffer overflow, bypass, spoofing, and use-after-free vulnerabilities.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2022-01-07 CVE Reserved
2022-01-13 CVE Published
2024-08-03 CVE Updated
2024-08-03 First Exploit
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CWE-787: Out-of-bounds Write

CAPEC

References (6)

URL	Tag	Source

URL	Date	SRC
https://bugzilla.mozilla.org/show_bug.cgi?id=1742382	2024-08-03

URL	Date	SRC

URL	Date	SRC
https://www.mozilla.org/security/advisories/mfsa2022-01	2022-12-29
https://www.mozilla.org/security/advisories/mfsa2022-02	2022-12-29
https://www.mozilla.org/security/advisories/mfsa2022-03	2022-12-29
https://access.redhat.com/security/cve/CVE-2022-22738	2022-01-12
https://bugzilla.redhat.com/show_bug.cgi?id=2039566	2022-01-12

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Mozilla Search vendor "Mozilla"		Firefox Search vendor "Mozilla" for product "Firefox"				< 96.0 Search vendor "Mozilla" for product "Firefox" and version " < 96.0"		-		Affected
Mozilla Search vendor "Mozilla"		Firefox Esr Search vendor "Mozilla" for product "Firefox Esr"				< 91.5 Search vendor "Mozilla" for product "Firefox Esr" and version " < 91.5"		-		Affected
Mozilla Search vendor "Mozilla"		Thunderbird Search vendor "Mozilla" for product "Thunderbird"				< 91.5 Search vendor "Mozilla" for product "Thunderbird" and version " < 91.5"		-		Affected