CVE-2023-45288: GO-2024-2687 - HTTP/2 CONTINUATION flood in net/http

Quick answers

Is CVE-2023-45288 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2023-45288 being exploited in the wild.

How severe is CVE-2023-45288?

Low severity, with a CVSS score of 3.1, published 3 April 2024.

Which products and versions are affected?

golang.org/x/net (Go) SEMVER:introduced=0,fixed=0.23.0; golang.org/x/net/http2 (Go) SEMVER:introduced=0,fixed=0.23.0; net/http (Go) SEMVER:introduced=0,fixed=1.21.9; stdlib (Go) SEMVER:introduced=0,fixed=1.21.9,introduced=1.22.0-0,fixed=1.22.2.

Is there a fix for CVE-2023-45288?

Yes. golang.org/x/net (Go): upgrade to 0.23.0 or later; golang.org/x/net/http2 (Go): upgrade to 0.23.0 or later; net/http (Go): upgrade to 1.21.9 or later; stdlib (Go): upgrade to 1.22.2 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

Am I affected by CVE-2023-45288?

Check whether you run golang.org/x/net (Go), golang.org/x/net/http2 (Go), net/http (Go) or one of the others listed at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

• golang.org/x/net (Go): upgrade to 0.23.0 or later

  go get golang.org/x/net@v0.23.0

• golang.org/x/net/http2 (Go): upgrade to 0.23.0 or later

  go get golang.org/x/net/http2@v0.23.0

• net/http (Go): upgrade to 1.21.9 or later

  go get net/http@v1.21.9

• stdlib (Go): upgrade to 1.22.2 or later

  go get stdlib@v1.22.2

Affected products

• golang.org/x/net (Go) SEMVER:introduced=0,fixed=0.23.0
• golang.org/x/net/http2 (Go) SEMVER:introduced=0,fixed=0.23.0
• net/http (Go) SEMVER:introduced=0,fixed=1.21.9
• stdlib (Go) SEMVER:introduced=0,fixed=1.21.9,introduced=1.22.0-0,fixed=1.22.2

Identifiers

• CVE-2023-45288
• GHSA-4v7x-pqxf-cx7m
• GO-2024-2687