#VU50039 Resource exhaustion in ServerProtect for Linux - CVE-2021-25224

Vulnerability identifier: #VU50039

Vulnerability risk: Low

CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-25224

CWE-ID: CWE-400

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
ServerProtect for Linux
Server applications / Server solutions for antivurus protection

Vendor: Trend Micro

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

Three vulnerabilities exists due to application does not properly control consumption of internal resources within the splx_manual_scan executable. A local user can trigger resource exhaustion and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

https://files.trendmicro.com/products/serverprotect/splx_30_lx_en_criticalpatch1649.tar.gz

Vulnerable software versions

ServerProtect for Linux: before 3.0 CP 1649

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External links
https://success.trendmicro.com/solution/000284207
https://www.zerodayinitiative.com/advisories/ZDI-21-085/

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.