CVEvulnerability

CVE-2019-11230

4.4 MEDIUM Published 2019-07-18 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2019-07-18
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.0 ([email protected])
4.4 MEDIUM — CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N
CVSS 2.0 ([email protected])
3.6 LOW — AV:L/AC:L/Au:N/C:N/I:P/A:P
Weaknesses
CWE-59

Description

In Avast Antivirus before 19.4, a local administrator can trick the product into renaming arbitrary files by replacing the Logs\Update.log file with a symlink. The next time the product attempts to write to the log file, the target of the symlink is renamed. This defect can be exploited to rename a critical product file (e.g., AvastSvc.exe), causing the product to fail to start on the next system restart.

Affected configurations

• avast antivirus (< 19.4)

Related

Weakness · CWE (1)

  • CWE-59 Improper Link Resolution Before File Access weakness

References