CVE-2021-34859

Description

This vulnerability allows remote attackers to execute arbitrary code on affected installations of TeamViewer 15.16.8.0. 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 memory corruption condition. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-13697.

Weakness classification

• CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer
• CWE-787: Out-of-bounds Write

Primary references

• zdi-disclosures@trendmicro.com — Patch, Vendor Advisory
• zdi-disclosures@trendmicro.com — Third Party Advisory, VDB Entry
• af854a3a-2127-422b-91ae-364da2661108 — Patch, Vendor Advisory
• af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory, VDB Entry