CVE-2021-22569GHSA-WRVW-HG22-4M67
Denial of Service of protobuf-java parsing procedure
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 3.16.1, 3.18.2, 3.19.2
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- 1 proof of concept on GitHub
CISA's decision points: whether it is exploited, whether attacks can be automated, and how much control an attacker gets. Assessed (SSVC 2.0.3).What do these mean? →
- Exploitation: poc
- Automatable: yes
- Technical impact: partial
Summary
An issue in protobuf-java allowed 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. We recommend upgrading libraries beyond the vulnerable versions.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: poc · Automatable: yes · Technical impact: partial
- Record last updated
Affected versions
- Google LLC protobuf-java
fixed in 3.16.1; fixed in 3.18.2; fixed in 3.19.2
- Google LLC protobuf-kotlin
fixed in 3.18.2; fixed in 3.19.2
- Google LLC google-protobuf [JRuby Gem]
fixed in 3.19.2
- com.google.protobuf:protobuf-javaMaven
fixed in 3.16.1
- google-protobufRubyGems
fixed in 3.19.2
- com.google.protobuf:protobuf-javaMaven
From 3.18.0 · fixed in 3.18.2
- com.google.protobuf:protobuf-javaMaven
From 3.19.0 · fixed in 3.19.2
- com.google.protobuf:protobuf-kotlinMaven
From 3.18.0 · fixed in 3.18.2
- com.google.protobuf:protobuf-kotlinMaven
From 3.19.0 · fixed in 3.19.2