When gRPC HTTP2 stack raised a header size exceeded error, it skipped parsing the rest of the HPACK frame. This caused any HPACK table mutations to also be skipped, resulting in a desynchronization of HPACK tables between sender and receiver. If leveraged, say, between a proxy and a backend, this could lead to requests from the proxy being interpreted as containing headers from different proxy clients - leading to an information leak that can be used for privilege escalation or data exfiltration. We recommend upgrading beyond the commit contained in https://github.com/grpc/grpc/pull/33005 https://github.com/grpc/grpc/pull/33005
CVE-2023-32731 - High Severity Vulnerability
HTTP/2-based RPC framework
Library home page: https://files.pythonhosted.org/packages/40/07/d29532952ded730b058c730ca182bfd6906ee17257bfc9659007520ced57/grpcio-1.42.0-cp37-cp37m-manylinux_2_17_x86_64.manylinux2014_x86_64.whl
Path to dependency file: /tensorflow/tools/pip_package
Path to vulnerable library: /tensorflow/tools/pip_package
Dependency Hierarchy: - :x: **grpcio-1.42.0-cp37-cp37m-manylinux_2_17_x86_64.manylinux2014_x86_64.whl** (Vulnerable Library)
Found in base branch: master
When gRPC HTTP2 stack raised a header size exceeded error, it skipped parsing the rest of the HPACK frame. This caused any HPACK table mutations to also be skipped, resulting in a desynchronization of HPACK tables between sender and receiver. If leveraged, say, between a proxy and a backend, this could lead to requests from the proxy being interpreted as containing headers from different proxy clients - leading to an information leak that can be used for privilege escalation or data exfiltration. We recommend upgrading beyond the commit contained in https://github.com/grpc/grpc/pull/33005 https://github.com/grpc/grpc/pull/33005
Publish Date: 2023-06-09
URL: CVE-2023-32731
Base Score Metrics: - Exploitability Metrics: - Attack Vector: Network - Attack Complexity: High - Privileges Required: None - User Interaction: None - Scope: Unchanged - Impact Metrics: - Confidentiality Impact: High - Integrity Impact: None - Availability Impact: High
For more information on CVSS3 Scores, click here.Type: Upgrade version
Origin: https://nvd.nist.gov/vuln/detail/CVE-2023-32731
Release Date: 2023-06-09
Fix Resolution: grpc - 1.53.1,1.54.2, grpcio - 1.53.1,1.54.2
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