#VU75482 Integer overflow in protobuf-c - CVE-2022-48468

Vulnerability identifier: #VU75482

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-2022-48468

CWE-ID: CWE-190

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
protobuf-c
Other software / Other software solutions

Vendor: protobuf-c

Description

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

The vulnerability exists due to integer overflow within parse_required_member() 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

protobuf-c: 0.15 - 1.4.0

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External links
https://github.com/protobuf-c/protobuf-c/issues/499
https://github.com/protobuf-c/protobuf-c/pull/513
https://github.com/protobuf-c/protobuf-c/commit/ec3d900001a13ccdaa8aef996b34c61159c76217
https://github.com/protobuf-c/protobuf-c/releases/tag/v1.4.1

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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.