CVE-2023-45288 Affecting temporal-ui-server package, versions <2.26.1-r1


Severity

Recommended
low

Based on default assessment until relevant scores are available

    Threat Intelligence

    EPSS
    0.04% (15th percentile)

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  • Snyk ID SNYK-CHAINGUARDLATEST-TEMPORALUISERVER-6670530
  • published 22 Apr 2024
  • disclosed 4 Apr 2024

How to fix?

Upgrade Chainguard temporal-ui-server to version 2.26.1-r1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream temporal-ui-server package and not the temporal-ui-server package as distributed by Chainguard. See How to fix? for Chainguard relevant fixed versions and status.

An attacker may cause an HTTP/2 endpoint to read arbitrary amounts of header data by sending an excessive number of CONTINUATION frames. Maintaining HPACK state requires parsing and processing all HEADERS and CONTINUATION frames on a connection. When a request's headers exceed MaxHeaderBytes, no memory is allocated to store the excess headers, but they are still parsed. This permits an attacker to cause an HTTP/2 endpoint to read arbitrary amounts of header data, all associated with a request which is going to be rejected. These headers can include Huffman-encoded data which is significantly more expensive for the receiver to decode than for an attacker to send. The fix sets a limit on the amount of excess header frames we will process before closing a connection.

CVSS Scores

version 3.1
Expand this section

Red Hat

7.5 high
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    None
  • Integrity (I)
    None
  • Availability (A)
    High
Expand this section

SUSE

7.5 high