CVE-2021-45385

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 v3 6.5 MEDIUM
CVSS v2.0 4.3 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

4.3^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:M/Au:N/C:N/I:N/A:P

Exploitability : 8.6 / Impact : 2.9

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
https://github.com/rockcarry/ffjpeg/issues/47	Exploit Issue Tracking Third Party Advisory
https://github.com/rockcarry/ffjpeg/pull/48	Issue Tracking Patch Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:rockcarry:ffjpeg:2021-12-06:*:*:*:*:*:*:*

History

No history.

Information

Published : 2022-02-11 16:15

Updated : 2023-08-17 14:09

NVD link : CVE-2021-45385

Mitre link : CVE-2021-45385

CVE.ORG link : CVE-2021-45385

JSON object : View

Products Affected

rockcarry

ffjpeg

CWE

CWE-476

NULL Pointer Dereference

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