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zdiInsu of 78 Research LabZDI-22-1074
HistoryAug 18, 2022 - 12:00 a.m.

Microsoft Outlook MIME Header Heap Corruption Denial-of-Service Vulnerability

2022-08-1800:00:00
insu of 78 Research Lab
www.zerodayinitiative.com
10

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

0.001 Low

EPSS

Percentile

28.2%

This vulnerability allows remote attackers to create a denial-of-service condition on affected installations of Microsoft Outlook. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of MIME headers. Crafted MIME headers within an email message can cause Outlook to release an invalid pointer. An attacker can leverage this vulnerability to create a persistent denial-of-service condition on the Microsoft Outlook application.

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

0.001 Low

EPSS

Percentile

28.2%