CVE-2024-7246 Affecting grpc package, versions <1.65.4-r0


Severity

Recommended
low

Based on default assessment until relevant scores are available

    Threat Intelligence

    EPSS
    0.04% (10th percentile)

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  • Snyk ID SNYK-WOLFILATEST-GRPC-7654134
  • published 8 Aug 2024
  • disclosed 6 Aug 2024

How to fix?

Upgrade Wolfi grpc to version 1.65.4-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream grpc package and not the grpc package as distributed by Wolfi. See How to fix? for Wolfi relevant fixed versions and status.

It's possible for a gRPC client communicating with a HTTP/2 proxy to poison the HPACK table between the proxy and the backend such that other clients see failed requests. It's also possible to use this vulnerability to leak other clients HTTP header keys, but not values.

This occurs 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.

Please update to a fixed version of gRPC as soon as possible. This bug has been fixed in 1.58.3, 1.59.5, 1.60.2, 1.61.3, 1.62.3, 1.63.2, 1.64.3, 1.65.4.

CVSS Scores

version 3.1
Expand this section

Red Hat

4.8 medium
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    High
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    Low
  • Integrity (I)
    None
  • Availability (A)
    Low