Headline
GHSA-4v7x-pqxf-cx7m: net/http, x/net/http2: close connections when receiving too many headers
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.
Skip to content
Actions
Automate any workflow
Packages
Host and manage packages
Security
Find and fix vulnerabilities
Codespaces
Instant dev environments
Copilot
Write better code with AI
Code review
Manage code changes
Issues
Plan and track work
Discussions
Collaborate outside of code
GitHub Sponsors
Fund open source developers
* The ReadME Project
GitHub community articles
- Pricing
Provide feedback
Saved searches****Use saved searches to filter your results more quickly
Sign up
- GitHub Advisory Database
- GitHub Reviewed
- CVE-2023-45288
net/http, x/net/http2: close connections when receiving too many headers
Moderate severity GitHub Reviewed Published Apr 4, 2024 to the GitHub Advisory Database • Updated Apr 4, 2024
Package
gomod golang.org/x/net/http2 (Go)
Affected versions
< 0.23.0
< 1.21.9
>= 1.22.0-0, < 1.22.2
Description
Published to the GitHub Advisory Database
Apr 4, 2024
Related news
Red Hat Security Advisory 2024-8692-03 - Red Hat OpenShift Container Platform release 4.12.68 is now available with updates to packages and images that fix several bugs and add enhancements. Issues addressed include a denial of service vulnerability.
Red Hat Security Advisory 2024-8688-03 - Red Hat OpenShift Container Platform release 4.13.53 is now available with updates to packages and images that fix several bugs and add enhancements. Issues addressed include a denial of service vulnerability.
Red Hat Security Advisory 2024-6811-03 - Red Hat OpenShift Container Platform release 4.13.51 is now available with updates to packages and images that fix several bugs and add enhancements. Issues addressed include a denial of service vulnerability.
Red Hat Security Advisory 2024-4982-03 - OpenShift API for Data Protection 1.3.3 is now available. Issues addressed include a denial of service vulnerability.
Red Hat Security Advisory 2024-4677-03 - Red Hat OpenShift Container Platform release 4.12.61 is now available with updates to packages and images that fix several bugs and add enhancements. Issues addressed include a denial of service vulnerability.
Red Hat Security Advisory 2024-4546-03 - An update for git-lfs is now available for Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions, and Red Hat Enterprise Linux 8.6 Telecommunications Update Service. Issues addressed include a denial of service vulnerability.
Ubuntu Security Notice 6886-1 - It was discovered that the Go net/http module did not properly handle the requests when request\'s headers exceed MaxHeaderBytes. An attacker could possibly use this issue to cause a panic resulting into a denial of service. This issue only affected Go 1.21 in Ubuntu 20.04 LTS and Ubuntu 22.04 LTS. It was discovered that the Go net/http module did not properly validate the subdomain match or exact match of the initial domain. An attacker could possibly use this issue to read sensitive information. This issue only affected Go 1.21 in Ubuntu 20.04 LTS and Ubuntu 22.04 LTS.
Red Hat Security Advisory 2024-4023-03 - Red Hat openshift-serverless-clients kn 1.33.0 is now available. Issues addressed include denial of service and memory exhaustion vulnerabilities.
Red Hat Security Advisory 2024-3885-03 - Red Hat OpenShift Container Platform release 4.13.44 is now available with updates to packages and images that fix several bugs and add enhancements. Issues addressed include a denial of service vulnerability.
Red Hat Security Advisory 2024-3781-03 - An update is now available for Red Hat Ansible Automation Platform 2.4. Issues addressed include HTTP request smuggling, buffer overflow, code execution, cross site scripting, denial of service, memory exhaustion, null pointer, and password leak vulnerabilities.
Red Hat Security Advisory 2024-3479-03 - Updated container images are now available for director Operator for Red Hat OpenStack Platform 16.2 for RHEL 8.4. Issues addressed include a denial of service vulnerability.
Red Hat Security Advisory 2024-2728-03 - Updated container images are now available for director Operator for Red Hat OpenStack Platform 17.1 for RHEL 9.2. Issues addressed include a denial of service vulnerability.
Red Hat Security Advisory 2024-2875-03 - Red Hat OpenShift Container Platform release 4.13.42 is now available with updates to packages and images that fix several bugs and add enhancements. Issues addressed include HTTP request smuggling and denial of service vulnerabilities.
Red Hat Security Advisory 2024-3352-03 - An update for etcd is now available for Red Hat OpenStack Platform 16.2. Issues addressed include a denial of service vulnerability.
Red Hat Security Advisory 2024-2668-03 - Red Hat OpenShift Container Platform release 4.14.24 is now available with updates to packages and images that fix several bugs and add enhancements. Issues addressed include a denial of service vulnerability.
Red Hat Security Advisory 2024-2667-03 - Red Hat build of MicroShift release 4.15.12 is now available with updates to packages and images that include a security update.
Red Hat Security Advisory 2024-2699-03 - An update for git-lfs is now available for Red Hat Enterprise Linux 8. Issues addressed include a denial of service vulnerability.
Red Hat Security Advisory 2024-2049-03 - Red Hat OpenShift Container Platform release 4.13.41 is now available with updates to packages and images that fix several bugs and add enhancements. Issues addressed include a denial of service vulnerability.
Red Hat Security Advisory 2024-2625-03 - An update for rhc-worker-script is now available for Red Hat Enterprise Linux 7. Issues addressed include a denial of service vulnerability.
Red Hat Security Advisory 2024-2088-03 - An update is now available for the Red Hat build of Cryostat 2 on RHEL 8. Issues addressed include denial of service, memory exhaustion, and memory leak vulnerabilities.
Red Hat Security Advisory 2024-2079-03 - An update for git-lfs is now available for Red Hat Enterprise Linux 9. Issues addressed include a denial of service vulnerability.
Red Hat Security Advisory 2024-2062-03 - An update is now available for Service Telemetry Framework 1.5.4 for RHEL 9. Issues addressed include a denial of service vulnerability.
Red Hat Security Advisory 2024-1899-03 - Red Hat OpenShift Container Platform release 4.12.56 is now available with updates to packages and images that fix several bugs and add enhancements. Issues addressed include a denial of service vulnerability.
Red Hat Security Advisory 2024-1892-03 - Red Hat OpenShift Container Platform release 4.15.10 is now available with updates to packages and images that fix several bugs and add enhancements. Issues addressed include a denial of service vulnerability.
Red Hat Security Advisory 2024-2060-03 - Red Hat OpenShift Virtualization release 4.14.5 is now available with updates to packages and images that fix several bugs and add enhancements. Issues addressed include a denial of service vulnerability.
Red Hat Security Advisory 2024-1963-03 - An update for golang is now available for Red Hat Enterprise Linux 9. Issues addressed include a denial of service vulnerability.
Red Hat Security Advisory 2024-1962-03 - An update for the go-toolset:rhel8 module is now available for Red Hat Enterprise Linux 8. Issues addressed include a denial of service vulnerability.
Red Hat Security Advisory 2024-1683-03 - Red Hat OpenShift Container Platform release 4.13.39 is now available with updates to packages and images that fix several bugs and add enhancements. Issues addressed include a denial of service vulnerability.
Red Hat Security Advisory 2024-1681-03 - Red Hat OpenShift Container Platform release 4.14.20 is now available with updates to packages and images that fix several bugs and add enhancements. Issues addressed include a denial of service vulnerability.
Red Hat Security Advisory 2024-1679-03 - Red Hat OpenShift Container Platform release 4.12.55 is now available with updates to packages and images that fix several bugs and add enhancements. Issues addressed include a denial of service vulnerability.
Red Hat Security Advisory 2024-1668-03 - Red Hat OpenShift Container Platform release 4.15.8 is now available with updates to packages and images that fix several bugs and add enhancements. Issues addressed include a denial of service vulnerability.