CVE-2023-45288 Affecting golang-1.18 package, versions <1.18.1-1ubuntu1~20.04.3


Severity

Recommended
medium

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.04% (15th percentile)

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  • Snyk IDSNYK-UBUNTU2004-GOLANG118-6571400
  • published14 Nov 2024
  • disclosed4 Apr 2024

Introduced: 4 Apr 2024

CVE-2023-45288  (opens in a new tab)
First added by Snyk

How to fix?

Upgrade Ubuntu:20.04 golang-1.18 to version 1.18.1-1ubuntu1~20.04.3 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream golang-1.18 package and not the golang-1.18 package as distributed by Ubuntu. See How to fix? for Ubuntu:20.04 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