CVE-2020-12422

Mozilla: Integer overflow in nsJPEGEncoder::emptyOutputBuffer

Severity Score

8.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

In non-standard configurations, a JPEG image created by JavaScript could have caused an internal variable to overflow, resulting in an out of bounds write, memory corruption, and a potentially exploitable crash. This vulnerability affects Firefox < 78.

En configuraciones no estándar, una imagen JPEG creada por JavaScript podría haber causado un desbordamiento de una variable interna, resultando en una escritura fuera de límites, corrupción de la memoria y un bloqueo explotable potencialmente. Esta vulnerabilidad afecta a Firefox versiones anteriores a 78

*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

High

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2020-04-28 CVE Reserved
2020-07-09 CVE Published
2024-05-13 EPSS Updated
2024-08-04 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-190: Integer Overflow or Wraparound
CWE-787: Out-of-bounds Write

CAPEC

References (7)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00027.html	2023-01-27
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00049.html	2023-01-27
https://bugzilla.mozilla.org/show_bug.cgi?id=1450353	2023-01-27
https://security.gentoo.org/glsa/202007-10	2023-01-27
https://www.mozilla.org/security/advisories/mfsa2020-24	2023-01-27
https://access.redhat.com/security/cve/CVE-2020-12422	2020-09-30
https://bugzilla.redhat.com/show_bug.cgi?id=1872538	2020-09-30

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"				< 78.0 Search vendor "Mozilla" for product "Firefox" and version " < 78.0"		-		Affected
Opensuse Search vendor "Opensuse"		Leap Search vendor "Opensuse" for product "Leap"				15.1 Search vendor "Opensuse" for product "Leap" and version "15.1"		-		Affected
Opensuse Search vendor "Opensuse"		Leap Search vendor "Opensuse" for product "Leap"				15.2 Search vendor "Opensuse" for product "Leap" and version "15.2"		-		Affected