CVE-2023-3978 Improper rendering of text nodes in golang.org/x/net/html
Medium 6.1
Published
Updated
Check this codebase for CVE-2023-3978 and fix it if it is affected.
What it is: CVE-2023-3978 is a medium-severity cross-site scripting vulnerability in golang.org/x/net/html, published on 2 Aug 2023. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2023-3978 in the wild and no public exploit code.
Affected packages and fixed versions:
- golang.org/x/net (Go): affected all versions; fixed in 0.13.0
- golang.org/x/net (Go): affected all versions; fixed in 0.13.0
- golang.org/x/net (Go): affected all versions; fixed in 0.13.0
Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.
Reference: https://insights.sbomify.com/CVE-2023-3978/ (Markdown: https://insights.sbomify.com/CVE-2023-3978/index.md)
Attackers can inject malicious scripts via improperly escaped text nodes in the Go HTML library, leading to cross-site scripting attacks.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2023-3978?
CVE-2023-3978 is a medium-severity cross-site scripting vulnerability in golang.org/x/net/html, published on 2 Aug 2023. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Text nodes not in the HTML namespace are incorrectly literally rendered, causing text which should be escaped to not be. This could lead to an XSS attack.
Weakness: CWE-79
Which versions are affected by CVE-2023-3978?
3 open source packages ship an affected version, including golang.org/x/net. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
golang.org/x/net Go | All versions | 0.13.0 |
golang.org/x/net Go | All versions | 0.13.0 |
golang.org/x/net Go | All versions | 0.13.0 |
Linux distribution packages (37)
podman Red Hat:openshift:4.14::el8 | All versions | 3:4.4.1-11.2.rhaos4.14.el8 |
podman-catatonit Red Hat:openshift:4.14::el8 | All versions | 3:4.4.1-11.2.rhaos4.14.el8 |
podman-catatonit-debuginfo Red Hat:openshift:4.14::el8 | All versions | 3:4.4.1-11.2.rhaos4.14.el8 |
podman-debuginfo Red Hat:openshift:4.14::el8 | All versions | 3:4.4.1-11.2.rhaos4.14.el8 |
podman-debugsource Red Hat:openshift:4.14::el8 | All versions | 3:4.4.1-11.2.rhaos4.14.el8 |
podman-docker Red Hat:openshift:4.14::el8 | All versions | 3:4.4.1-11.2.rhaos4.14.el8 |
podman-gvproxy Red Hat:openshift:4.14::el8 | All versions | 3:4.4.1-11.2.rhaos4.14.el8 |
podman-gvproxy-debuginfo Red Hat:openshift:4.14::el8 | All versions | 3:4.4.1-11.2.rhaos4.14.el8 |
podman-plugins Red Hat:openshift:4.14::el8 | All versions | 3:4.4.1-11.2.rhaos4.14.el8 |
podman-plugins-debuginfo Red Hat:openshift:4.14::el8 | All versions | 3:4.4.1-11.2.rhaos4.14.el8 |
podman-remote Red Hat:openshift:4.14::el8 | All versions | 3:4.4.1-11.2.rhaos4.14.el8 |
podman-remote-debuginfo Red Hat:openshift:4.14::el8 | All versions | 3:4.4.1-11.2.rhaos4.14.el8 |
podman-tests Red Hat:openshift:4.14::el8 | All versions | 3:4.4.1-11.2.rhaos4.14.el8 |
podman Red Hat:openshift:4.14::el9 | All versions | 3:4.4.1-11.2.rhaos4.14.el9 |
podman-debuginfo Red Hat:openshift:4.14::el9 | All versions | 3:4.4.1-11.2.rhaos4.14.el9 |
podman-debugsource Red Hat:openshift:4.14::el9 | All versions | 3:4.4.1-11.2.rhaos4.14.el9 |
podman-docker Red Hat:openshift:4.14::el9 | All versions | 3:4.4.1-11.2.rhaos4.14.el9 |
podman-gvproxy Red Hat:openshift:4.14::el9 | All versions | 3:4.4.1-11.2.rhaos4.14.el9 |
podman-gvproxy-debuginfo Red Hat:openshift:4.14::el9 | All versions | 3:4.4.1-11.2.rhaos4.14.el9 |
podman-plugins Red Hat:openshift:4.14::el9 | All versions | 3:4.4.1-11.2.rhaos4.14.el9 |
podman-plugins-debuginfo Red Hat:openshift:4.14::el9 | All versions | 3:4.4.1-11.2.rhaos4.14.el9 |
podman-remote Red Hat:openshift:4.14::el9 | All versions | 3:4.4.1-11.2.rhaos4.14.el9 |
podman-remote-debuginfo Red Hat:openshift:4.14::el9 | All versions | 3:4.4.1-11.2.rhaos4.14.el9 |
podman-tests Red Hat:openshift:4.14::el9 | All versions | 3:4.4.1-11.2.rhaos4.14.el9 |
golang SUSE:EL-9:Update:Products:ManagerTools:Update | All versions | 1.20.12-1.3.1 |
golang-github-lusitaniae-apache_exporter SUSE:EL-9:Update:Products:ManagerTools:Update | All versions | 1.0.8-1.14.1 |
scap-security-guide SUSE:EL-9:Update:Products:ManagerTools:Update | All versions | 0.1.74-1.29.1 |
spacecmd SUSE:EL-9:Update:Products:ManagerTools:Update | All versions | 5.0.10-1.41.1 |
uyuni-tools SUSE:EL-9:Update:Products:ManagerTools:Update | All versions | 0.1.23-1.11.1 |
golang-github-prometheus-promu SUSE:Linux Enterprise Module for Package Hub 15 SP5 | All versions | 0.16.0-150000.3.21.4 |
golang-github-prometheus-promu SUSE:Linux Enterprise Module for Package Hub 15 SP6 | All versions | 0.16.0-150000.3.21.4 |
golang-github-lusitaniae-apache_exporter SUSE:Manager Client Tools 12 | All versions | 1.0.8-1.24.3 |
golang-github-prometheus-promu SUSE:Manager Client Tools 12 | All versions | 0.16.0-1.21.3 |
mgr-daemon SUSE:Manager Client Tools 12 | All versions | 4.3.11-1.53.2 |
spacecmd SUSE:Manager Client Tools 12 | All versions | 5.0.10-38.150.2 |
spacewalk-client-tools SUSE:Manager Client Tools 12 | All versions | 4.3.21-52.104.2 |
uyuni-common-libs SUSE:Manager Client Tools 12 | All versions | 5.0.5-1.45.2 |
Products include Golang Networking.
How do I fix CVE-2023-3978?
Upgrade golang.org/x/net to 0.13.0 or later.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2023-3978 being exploited?
There is no known exploitation of CVE-2023-3978 in the wild and no public exploit code.
Sources
Also known as AZL-27810, AZL-27813, AZL-27818, AZL-27831, AZL-31690, AZL-31858 and 24 more.