CVE-2021-45385 Information

Description

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.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Reference

https://github.com/rockcarry/ffjpeg/pull/48 https://github.com/rockcarry/ffjpeg/issues/47

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

6.5