CVE-2023-45288 Affecting ignition-dracut-grub2 package, versions <2.14.0-150400.9.6.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server 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-SLES156-IGNITIONDRACUTGRUB2-8679604
  • published31 Jan 2025
  • disclosed30 Jan 2025

Introduced: 30 Jan 2025

NewCVE-2023-45288  (opens in a new tab)

How to fix?

Upgrade SLES:15.6 ignition-dracut-grub2 to version 2.14.0-150400.9.6.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream ignition-dracut-grub2 package and not the ignition-dracut-grub2 package as distributed by SLES. See How to fix? for SLES:15.6 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