Expected Behavior Violation Affecting grpc package, versions <1.58.3 >=1.59.0, <1.59.5 >=1.60.0, <1.60.2 >=1.61.0, <1.61.3 >=1.62.0, <1.62.3 >=1.63.0, <1.63.2 >=1.64.0, <1.64.3 >=1.65.0, <1.65.4
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Test your applications- Snyk ID SNYK-RUBY-GRPC-7641067
- published 6 Aug 2024
- disclosed 6 Aug 2024
- credit Unknown
Introduced: 6 Aug 2024
CVE-2024-7246 Open this link in a new tabHow to fix?
Upgrade grpc to version 1.58.3, 1.59.5, 1.60.2, 1.61.3, 1.62.3, 1.63.2, 1.64.3, 1.65.4 or higher.
Overview
Affected versions of this package are vulnerable to Expected Behavior Violation via the HPackParser function when the gRPC client is communicating with an HTTP/2 proxy, allowing the attacker to poison the HPACK table. By manipulating the header encoding and poisoning the HPACK table between the proxy and the backend, an attacker can cause other gRPC clients to see failed requests or potentially leak HTTP header keys but not their values.
This vulnerability exists because the error status for a misencoded header is not cleared between header reads, resulting in subsequent (incrementally indexed) added headers in the first request being poisoned until cleared from the HPACK table.