CVE-2023-45288 Affecting kubernetes1.24-client package, versions <1.24.17-150300.7.6.1


Severity

Recommended
0.0
high
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.04% (16th percentile)

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  • Snyk IDSNYK-SLES153-KUBERNETES124CLIENT-8062217
  • published20 Sept 2024
  • disclosed19 Sept 2024

Introduced: 19 Sep 2024

CVE-2023-45288  (opens in a new tab)

How to fix?

Upgrade SLES:15.3 kubernetes1.24-client to version 1.24.17-150300.7.6.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kubernetes1.24-client package and not the kubernetes1.24-client package as distributed by SLES. See How to fix? for SLES:15.3 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