#VU69670 Input validation error in protobuf - CVE-2022-3509

Vulnerability identifier: #VU69670

Vulnerability risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2022-3509

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
protobuf
Other software / Other software solutions

Vendor: Google

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input when parsing textformat data. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

protobuf: 3.16.0 - 3.19.5, 3.20.0 - 3.21.6

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External links
https://github.com/protocolbuffers/protobuf/commit/a3888f53317a8018e7a439bac4abeb8f3425d5e9
https://www.ibm.com/support/pages/node/6960535

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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.