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Vulnerability DatabaseCVE-2021-1001

CVE-2021-1001: 
NixOS vulnerability analysis and mitigation

Overview

The vulnerability CVE-2021-34858 affects TeamViewer software and allows remote attackers to execute arbitrary code on affected installations. The vulnerability was discovered and reported to TeamViewer on April 27, 2021, and was publicly disclosed on August 26, 2021 (ZDI Advisory).

Technical details

The vulnerability exists within the parsing of TVS files and stems from improper validation of user-supplied data, which can result in an out-of-bounds read past the end of an allocated structure. The vulnerability has been assigned a CVSS v3.1 base score of 7.8 (HIGH) with the vector string CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H. The weakness has been classified as CWE-125 (Out-of-bounds Read) (ZDI Advisory, NVD Entry).

Impact

When successfully exploited, this vulnerability allows attackers to execute arbitrary code in the context of the current process. The vulnerability affects TeamViewer versions up to (excluding) 15.21.2 (NVD Entry).

Mitigation and workarounds

TeamViewer has released an update to address this vulnerability. Users are advised to update their TeamViewer installations to version 15.21.2 or later (TeamViewer Advisory).

Additional resources

Source: This report was generated using AI

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