CVE Vulnerabilities

CVE-2019-18644

Time-of-check Time-of-use (TOCTOU) Race Condition

Published: Oct 31, 2019 | Modified: Nov 01, 2019
CVSS 3.x
5.9
MEDIUM
Source:
NVD
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
CVSS 2.x
5.8 MEDIUM
AV:N/AC:M/Au:N/C:N/I:P/A:P
RedHat/V2
RedHat/V3
Ubuntu

The malware scan function in Total Defense Anti-virus 11.5.2.28 is vulnerable to a TOCTOU bug; consequently, symbolic link attacks allow privileged files to be deleted.

Weakness

The product checks the state of a resource before using that resource, but the resource’s state can change between the check and the use in a way that invalidates the results of the check. This can cause the product to perform invalid actions when the resource is in an unexpected state.

Affected Software

Name Vendor Start Version End Version
Anti-virus Totaldefense 11.5.2.28 11.5.2.28

Potential Mitigations

References