#VU79696 Integer overflow in Netconsd - CVE-2023-28753

Vulnerability identifier: #VU79696

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-2023-28753

CWE-ID: CWE-190

Exploitation vector: Network

Exploit availability: No

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

Vendor: Facebook Inc.

Description

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

The vulnerability exists due to integer overflow within the parse_packet() function in ncrx/libncrx.c. A remote attacker can send specially crafted messages 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

Netconsd: 0.1

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External links
https://www.facebook.com/security/advisories/cve-2023-28753
https://github.com/facebook/netconsd/commit/9fc54edf54f7caea1189c2b979337ed37af2c60e

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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.