Resource Exhaustion Affecting microshift-greenboot package, versions <0:4.14.24-202405021453.p0.g6e3abf7.assembly.4.14.24.el9


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.04% (16th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-RHEL9-MICROSHIFTGREENBOOT-6829084
  • published10 May 2024
  • disclosed3 Apr 2024

Introduced: 3 Apr 2024

CVE-2023-45288  (opens in a new tab)
CWE-400  (opens in a new tab)

How to fix?

Upgrade RHEL:9 microshift-greenboot to version 0:4.14.24-202405021453.p0.g6e3abf7.assembly.4.14.24.el9 or higher.
This issue was patched in RHSA-2024:2671.

NVD Description

Note: Versions mentioned in the description apply only to the upstream microshift-greenboot package and not the microshift-greenboot package as distributed by RHEL. See How to fix? for RHEL:9 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