CVE-2021-45385

Severity Score

6.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A Null Pointer Dereference vulnerability exits in ffjpeg d5cfd49 (2021-12-06) in bmp_load(). When the size information in metadata of the bmp is out of range, it returns without assign memory buffer to `pb->pdata` and did not exit the program. So the program crashes when it tries to access the pb->data, in jfif_encode() at jfif.c:763. This is due to the incomplete patch for CVE-2020-13438.

Se presenta una vulnerabilidad de desreferencia de puntero Null en ffjpeg versión d5cfd49 (06-12-2021) en la función bmp_load(). Cuando la información del tamaño en los metadatos del bmp está fuera de rango, devuelve sin asignar memoria intermedia a "pb-)pdata" y no sale del programa. Así que el programa es bloqueado cuando intenta acceder a pb-)data, en jfif_encode() en jfif.c:763. Esto es debido al parche incompleto para CVE-2020-13438

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-12-20 CVE Reserved
2022-02-11 CVE Published
2024-08-04 CVE Updated
2024-08-04 First Exploit
2024-12-17 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-476: NULL Pointer Dereference

CAPEC

References (2)

URL	Tag	Source

URL	Date	SRC
https://github.com/rockcarry/ffjpeg/issues/47	2024-08-04

URL	Date	SRC
https://github.com/rockcarry/ffjpeg/pull/48	2023-08-17

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Rockcarry Search vendor "Rockcarry"		Ffjpeg Search vendor "Rockcarry" for product "Ffjpeg"				2021-12-06 Search vendor "Rockcarry" for product "Ffjpeg" and version "2021-12-06"		-		Affected