CVE-2023-45288 Affecting golang-bin package, versions <0:1.20.12-4.el9_3


Severity

Recommended
high

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.04% (16th percentile)

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  • Snyk IDSNYK-ALMALINUX9-GOLANGBIN-6728190
  • published29 Apr 2024
  • disclosed23 Apr 2024

Introduced: 23 Apr 2024

CVE-2023-45288  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:9 golang-bin to version 0:1.20.12-4.el9_3 or higher.
This issue was patched in ALSA-2024:1963.

NVD Description

Note: Versions mentioned in the description apply only to the upstream golang-bin package and not the golang-bin package as distributed by AlmaLinux. See How to fix? for AlmaLinux: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