CVE-2021-34858

This vulnerability allows remote attackers to execute arbitrary code on affected installations of TeamViewer. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of TVS files. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated structure. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-13606.

CVSS v3.0 7.8 HIGH
CVSS v2.0 6.8 MEDIUM

7.8^/10

CVSS v3.0 : 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://community.teamviewer.com/English/discussion/117794/august-updates-security-patches/p1	Vendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-21-1001/	Third Party Advisory VDB Entry

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Configurations

Configuration 1 (hide)

cpe:2.3:a:teamviewer:teamviewer:*:*:*:*:*:*:*:*

Information

Published : 2022-01-13 14:15

Updated : 2022-01-20 18:17

NVD link : CVE-2021-34858

Mitre link : CVE-2021-34858

JSON object : View

CWE

CWE-125

Out-of-bounds Read

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Products Affected

teamviewer

teamviewer

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