#VU80405 Integer overflow in LibTomMath - CVE-2023-36328

Vulnerability identifier: #VU80405

Vulnerability risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2023-36328

CWE-ID: CWE-190

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
LibTomMath
Universal components / Libraries / Libraries used by multiple products

Vendor: www.libtom.net

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to integer overflow within the mp_grow() function. A remote attacker can pass specially crafted data to the application, trigger integer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

LibTomMath: 1.0 - 1.2.0

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External links
https://github.com/libtom/libtommath/pull/546

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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