CVE-2021-22569— Google protobuf 安全漏洞
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I. CVE-2021-22569の基本情報
脆弱性情報
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脆弱性タイトル
Denial of Service of protobuf-java parsing procedure
ソース: NVD (National Vulnerability Database)
脆弱性説明
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.
ソース: NVD (National Vulnerability Database)
CVSS情報
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
ソース: NVD (National Vulnerability Database)
脆弱性タイプ
不正确的行为次序
ソース: NVD (National Vulnerability Database)
脆弱性タイトル
Google protobuf 安全漏洞
ソース: CNNVD (China National Vulnerability Database)
脆弱性説明
Google protobuf是美国谷歌（Google）公司的一种数据交换格式。 Google protobuf java 存在安全漏洞，该漏洞允许一个小的恶意负载可以通过创建大量导致频繁、重复暂停的短期对象来占用解析器几分钟。
ソース: CNNVD (China National Vulnerability Database)
CVSS情報
N/A
ソース: CNNVD (China National Vulnerability Database)
脆弱性タイプ
N/A
ソース: CNNVD (China National Vulnerability Database)
影響を受ける製品
| ベンダー | プロダクト | 影響を受けるバージョン | CPE | 購読 |
|---|---|---|---|---|
| Google LLC | protobuf-java | unspecified ~ 3.16.1 | - | |
| Google LLC | protobuf-kotlin | unspecified ~ 3.18.2 | - | |
| Google LLC | google-protobuf [JRuby Gem] | unspecified ~ 3.19.2 | - |
II. CVE-2021-22569の公開POC
| # | POC説明 | ソースリンク | Shenlongリンク |
|---|---|---|---|
| 1 | A potential Denial of Service issue in protobuf-java high severity GitHub Reviewed Published 5 days ago in protocolbuffers/protobuf • Updated yesterday Vulnerability details Dependabot alerts 2 Package com.google.protobuf:protobuf-java (maven) Affected versions < 3.16.1 >= 3.18.0, < 3.18.2 >= 3.19.0, < 3.19.2 Patched versions 3.16.1 3.18.2 3.19.2 Package com.google.protobuf:protobuf-kotlin (maven) Affected versions >= 3.18.0, < 3.18.2 >= 3.19.0, < 3.19.2 Patched versions 3.18.2 3.19.2 Package google-protobuf (RubyGems) Affected versions < 3.19.2 Patched versions 3.19.2 Description Summary A potential Denial of Service issue in protobuf-java was discovered in the parsing procedure for binary data. Reporter: OSS-Fuzz Affected versions: All versions of Java Protobufs (including Kotlin and JRuby) prior to the versions listed below. Protobuf "javalite" users (typically Android) are not affected. Severity CVE-2021-22569 High - CVSS Score: 7.5, An implementation weakness in how unknown fields are parsed in Java. A small (~800 KB) malicious payload can occupy the parser for several minutes by creating large numbers of short-lived objects that cause frequent, repeated GC pauses. Proof of Concept For reproduction details, please refer to the oss-fuzz issue that identifies the specific inputs that exercise this parsing weakness. Remediation and Mitigation Please update to the latest available versions of the following packages: protobuf-java (3.16.1, 3.18.2, 3.19.2) protobuf-kotlin (3.18.2, 3.19.2) google-protobuf [JRuby gem only] (3.19.2) References GHSA-wrvw-hg22-4m67 https://nvd.nist.gov/vuln/detail/CVE-2021-22569 https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=39330 https://cloud.google.com/support/bulletins#gcp-2022-001 | https://github.com/Mario-Kart-Felix/A-potential-Denial-of-Service-issue-in-protobuf-java | POC詳細 |
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IV. 関連脆弱性
同じベンダー: Google LLC
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V. CVE-2021-22569へのコメント
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