CVE Identifier(s): CVE-2020-28575
Platform(s): Linux
CVSS 3.0 Score(s): 6.7
Severity Rating(s): Medium
Trend Micro has released a new kernel hook module (KHM) for Trend Micro ServerProtect for Linux 3.0. This KHM resolves a heap-based buffer overflow privilege escalation vulnerability.
Affected Version(s)
| Product | Affected Version(s) | Platform | Language(s) |
|---|---|---|---|
| ServerProtect for Linux (SPLX) | Version 3.0 | Linux | English |
Solution
Trend Micro has released the following solutions to address the issue:
| Product | Updated version | Notes | Platform | Availability |
|---|---|---|---|---|
| SPLX | KHM 3.0.1.0023 | Readme | Linux | Now |
KHM 3.0.1.0022 is the minimum version of the patch and/or build required to address this issue. Trend Micro highly encourages customers to obtain the latest version of the product if there is a newer one available than the one listed in this bulletin.
Customers are encouraged to visit Trend Micro’s Download Center to obtain prerequisite software (such as Service Packs) before applying any of the solutions above.
Vulnerability Details
CVE-2020-28575: Heap-based Buffer Overflow Privilege Escalation Vulnerability
CVSSv3: 6.7: AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
A heap-based buffer overflow privilege escalation vulnerability in Trend Micro ServerProtect for Linux 3.0 may allow an attacker to escalate privileges on affected installations.
An attacker must first obtain the ability to execute high-privileged code on the target in order to exploit this vulnerability.
Mitigating Factors
Exploiting these type of vulnerabilities generally require that an attacker has access (physical or remote) to a vulnerable machine. In addition to timely application of patches and updated solutions, customers are also advised to review remote access to critical systems and ensure policies and perimeter security is up-to-date.
However, even though an exploit may require several specific conditions to be met, Trend Micro strongly encourages customers to update to the latest builds as soon as possible.
Acknowledgement
Trend Micro would like to thank the following individuals for responsibly disclosing these issues and working with Trend Micro to help protect our customers:
- Anonymous working with Trend Micro's Zero Day Initiative
