CVE-2021-21946

CVSS V2 Medium 6.8 CVSS V3 High 8.8

Description

Two heap-based buffer overflow vulnerabilities exists in the JPEG-JFIF lossless Huffman image parser functionality of Accusoft ImageGear 19.10. A specially-crafted file can lead to a heap buffer overflow. An attacker can provide a malicious file to trigger these vulnerabilities.This heap-based buffer overflow takes place when the `SOF3` precision is lower than 9.

Overview

CVE ID
CVE-2021-21946

Assigner
talos-cna@cisco.com

Vulnerability Status
Analyzed

Published Version
2022-04-14T20:15:08

Last Modified Date
2022-12-06T21:12:17

Weakness Enumerations

CWE	URL
CWE-122	http://cwe.mitre.org/data/definitions/122.html

CPE Configuration (Product)

CPE	Vulnerable	Operator	Version Start	Version End
cpe:2.3:a:accusoft:imagegear:19.10:::::::*	1	OR

CVSS Version 2

Version
2.0

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

Access Vector
NETWORK

Access Compatibility
MEDIUM

Authentication
NONE

Confidentiality Impact
PARTIAL

Integrity Impact
PARTIAL

Availability Impact
PARTIAL

Base Score
6.8

Severity
MEDIUM

Exploitability Score
8.6

Impact Score
6.4

CVSS Version 3

Version
3.1

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

Attack Vector
NETWORK

Attack Compatibility
LOW

Privileges Required
NONE

User Interaction
REQUIRED

Scope
UNCHANGED

Confidentiality Impact
HIGH

Availability Impact
HIGH

Base Score
8.8

Base Severity
HIGH

Exploitability Score
2.8

Impact Score
5.9

References

Reference URL	Reference Tags
https://talosintelligence.com/vulnerability_reports/TALOS-2021-1375	Exploit Third Party Advisory

Sources

Source Name	Source URL
NIST	https://nvd.nist.gov/vuln/detail/CVE-2021-21946
MITRE	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21946

History

Created	Old Value	New Value	Data Type	Notes
2022-05-10 06:27:43				Added to TrackCVE
2022-12-06 21:14:07		2022-12-06T21:12:17	CVE Modified Date	updated
2022-12-06 21:14:07	Undergoing Analysis	Analyzed	Vulnerability Status	updated