CVE-2021-3404

In ytnef 1.9.3, the SwapWord function in lib/ytnef.c allows remote attackers to cause a denial-of-service (and potentially code execution) due to a heap buffer overflow 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=1926965	Issue Tracking Third Party Advisory
https://github.com/Yeraze/ytnef/issues/86	Exploit Issue Tracking Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1926965	Issue Tracking Third Party Advisory
https://github.com/Yeraze/ytnef/issues/86	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

21 Nov 2024, 06:21

Type	Values Removed	Values Added
References	~~() https://bugzilla.redhat.com/show_bug.cgi?id=1926965 - Issue Tracking, Third Party Advisory~~	() https://bugzilla.redhat.com/show_bug.cgi?id=1926965 - Issue Tracking, Third Party Advisory
References	~~() https://github.com/Yeraze/ytnef/issues/86 - Exploit, Issue Tracking, Third Party Advisory~~	() https://github.com/Yeraze/ytnef/issues/86 - Exploit, Issue Tracking, Third Party Advisory

25 Apr 2022, 20:25

Type	Values Removed	Values Added
CWE	~~CWE-119~~	CWE-787

Information

Published : 2021-03-04 22:15

Updated : 2024-11-21 06:21

NVD link : CVE-2021-3404

Mitre link : CVE-2021-3404

CVE.ORG link : CVE-2021-3404

JSON object : View

Products Affected

fedoraproject

fedora

redhat

enterprise_linux

ytnef_project

ytnef

CWE

CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer

CWE-787

Out-of-bounds Write

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