#VU60181 Resource management error in protobuf - CVE-2021-22569
Vulnerability identifier: #VU60181
Vulnerability risk: Medium
CVSSv4.0: 5.5 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P/U:Green]
CVE-ID:
CWE-ID:
CWE-399
Exploitation vector: Network
Exploit availability: Yes
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 improper management of internal resources within the application. protobuf-java allowes the interleaving of
com.google.protobuf.UnknownFieldSet fields in such a way that would be
processed out of order. A small malicious payload can occupy the parser
for several minutes by creating large numbers of short-lived objects
that cause frequent, repeated pauses. A remote attacker can trick the victim into passing specially crafted data to the application and perform a denial of service attack.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
protobuf: 3.19.0 - 3.19.1
External links
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=39330
https://cloud.google.com/support/bulletins#gcp-2022-001
https://www.openwall.com/lists/oss-security/2022/01/12/4
https://www.openwall.com/lists/oss-security/2022/01/12/7
Q & A
Can this vulnerability be exploited remotely?
Is there known malware, which exploits this vulnerability?
