CVE-2021-3403

In ytnef 1.9.3, the TNEFSubjectHandler function in lib/ytnef.c allows remote attackers to cause a denial-of-service (and potentially code execution) due to a double free which can be triggered via a crafted file.

CVSS v3 7.8 HIGH
CVSS v2.0 6.8 MEDIUM

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

6.8^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 8.6 / Impact : 6.4

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://bugzilla.redhat.com/show_bug.cgi?id=1926967	Issue Tracking Third Party Advisory
https://github.com/Yeraze/ytnef/issues/85	Exploit Issue Tracking Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:ytnef_project:ytnef:1.9.3:*:*:*:*:*:*:*

Configuration 2 (hide)

cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*

Configuration 3 (hide)

cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*

History

25 Apr 2022, 20:17

Type	Values Removed	Values Added
CWE	~~CWE-416~~	CWE-415

10 Mar 2021, 20:24

Type	Values Removed	Values Added
References	~~(MISC) https://github.com/Yeraze/ytnef/issues/85 -~~	(MISC) https://github.com/Yeraze/ytnef/issues/85 - Exploit, Issue Tracking, Third Party Advisory
References	~~(MISC) https://bugzilla.redhat.com/show_bug.cgi?id=1926967 -~~	(MISC) https://bugzilla.redhat.com/show_bug.cgi?id=1926967 - Issue Tracking, Third Party Advisory
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : 6.8 v3 : 7.8
CPE		cpe:2.3:o:redhat:enterprise_linux:7.0:::::::* cpe:2.3:a:ytnef_project:ytnef:1.9.3:::::::* cpe:2.3:o:fedoraproject:fedora:33:::::::*

04 Mar 2021, 22:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2021-03-04 22:15

Updated : 2023-12-10 13:41

NVD link : CVE-2021-3403

Mitre link : CVE-2021-3403

CVE.ORG link : CVE-2021-3403

JSON object : View

Products Affected

ytnef_project

ytnef

redhat

enterprise_linux

fedoraproject

fedora

CWE

CWE-415

Double Free

CWE-416

Use After Free

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