CVE-2021-3802 Denial of service in udisks2
Medium 4.2
Published
Updated
Check this codebase for CVE-2021-3802 and fix it if it is affected.
What it is: CVE-2021-3802 is a medium-severity denial of service vulnerability in Fedoraproject Fedora, published on 29 Nov 2021. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2021-3802 in the wild and no public exploit code.
Affected product: Fedoraproject Fedora. No package-level version data is available, so check the vendor advisory linked from the reference page.
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-2021-3802/ (Markdown: https://insights.sbomify.com/CVE-2021-3802/index.md)
An attacker can cause a kernel panic and system crash by providing a specially crafted image file or USB device to udisks2.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2021-3802?
CVE-2021-3802 is a medium-severity denial of service vulnerability in Fedoraproject Fedora, published on 29 Nov 2021. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
A vulnerability found in udisks2. This flaw allows an attacker to input a specially crafted image file/USB leading to kernel panic. The highest threat from this vulnerability is to system availability.
Weakness: CWE-20
Which versions are affected by CVE-2021-3802?
It affects 3 products.
Linux distribution packages (38)
libudisks2 AlmaLinux:8 | All versions | 2.9.0-9.el8 |
libudisks2-devel AlmaLinux:8 | All versions | 2.9.0-9.el8 |
udisks2 AlmaLinux:8 | All versions | 2.9.0-9.el8 |
udisks2-iscsi AlmaLinux:8 | All versions | 2.9.0-9.el8 |
udisks2-lsm AlmaLinux:8 | All versions | 2.9.0-9.el8 |
udisks2-lvm2 AlmaLinux:8 | All versions | 2.9.0-9.el8 |
libudisks2 Red Hat:enterprise_linux:8::appstream | All versions | 0:2.9.0-9.el8 |
libudisks2-debuginfo Red Hat:enterprise_linux:8::appstream | All versions | 0:2.9.0-9.el8 |
udisks2 Red Hat:enterprise_linux:8::appstream | All versions | 0:2.9.0-9.el8 |
udisks2-debuginfo Red Hat:enterprise_linux:8::appstream | All versions | 0:2.9.0-9.el8 |
udisks2-debugsource Red Hat:enterprise_linux:8::appstream | All versions | 0:2.9.0-9.el8 |
udisks2-iscsi Red Hat:enterprise_linux:8::appstream | All versions | 0:2.9.0-9.el8 |
udisks2-iscsi-debuginfo Red Hat:enterprise_linux:8::appstream | All versions | 0:2.9.0-9.el8 |
udisks2-lsm Red Hat:enterprise_linux:8::appstream | All versions | 0:2.9.0-9.el8 |
udisks2-lsm-debuginfo Red Hat:enterprise_linux:8::appstream | All versions | 0:2.9.0-9.el8 |
udisks2-lvm2 Red Hat:enterprise_linux:8::appstream | All versions | 0:2.9.0-9.el8 |
udisks2-lvm2-debuginfo Red Hat:enterprise_linux:8::appstream | All versions | 0:2.9.0-9.el8 |
libudisks2-debuginfo Red Hat:enterprise_linux:8::crb | All versions | 0:2.9.0-9.el8 |
libudisks2-devel Red Hat:enterprise_linux:8::crb | All versions | 0:2.9.0-9.el8 |
udisks2-debuginfo Red Hat:enterprise_linux:8::crb | All versions | 0:2.9.0-9.el8 |
udisks2-debugsource Red Hat:enterprise_linux:8::crb | All versions | 0:2.9.0-9.el8 |
udisks2-iscsi-debuginfo Red Hat:enterprise_linux:8::crb | All versions | 0:2.9.0-9.el8 |
udisks2-lsm-debuginfo Red Hat:enterprise_linux:8::crb | All versions | 0:2.9.0-9.el8 |
udisks2-lvm2-debuginfo Red Hat:enterprise_linux:8::crb | All versions | 0:2.9.0-9.el8 |
udisks2 Rocky Linux:8 | All versions | 0:2.9.0-9.el8 |
udisks2 SUSE:Linux Enterprise Module for Basesystem 15 SP3 | All versions | 2.8.1-150200.3.3.1 |
udisks2 SUSE:Linux Enterprise Module for Basesystem 15 SP4 | All versions | 2.9.2-150400.3.3.1 |
udisks2 SUSE:Linux Enterprise Server 12 SP2-BCL | All versions | 2.1.3-3.8.1 |
udisks2 SUSE:Linux Enterprise Server 12 SP3-BCL | All versions | 2.1.3-3.8.1 |
udisks2 SUSE:Linux Enterprise Server 12 SP4-LTSS | All versions | 2.1.3-3.8.1 |
udisks2 SUSE:Linux Enterprise Server 12 SP5 | All versions | 2.1.3-3.8.1 |
udisks2 SUSE:Linux Enterprise Server for SAP Applications 12 SP4 | All versions | 2.1.3-3.8.1 |
udisks2 SUSE:Linux Enterprise Server for SAP Applications 12 SP5 | All versions | 2.1.3-3.8.1 |
udisks2 SUSE:Linux Enterprise Software Development Kit 12 SP5 | All versions | 2.1.3-3.8.1 |
udisks2 SUSE:OpenStack Cloud 9 | All versions | 2.1.3-3.8.1 |
udisks2 SUSE:OpenStack Cloud Crowbar 9 | All versions | 2.1.3-3.8.1 |
udisks2 openSUSE:Leap 15.3 | All versions | 2.8.1-150200.3.3.1 |
udisks2 openSUSE:Leap 15.4 | All versions | 2.9.2-150400.3.3.1 |
Products include Fedoraproject Fedora, Redhat Enterprise Linux, Udisks Project Udisks.
How do I fix CVE-2021-3802?
Apply the vendor's patch.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2021-3802 being exploited?
There is no known exploitation of CVE-2021-3802 in the wild and no public exploit code.
Other vulnerabilities in Fedoraproject Fedora
Sources
Also known as ALSA-2022:1820, AZL-78300, DEBIAN-CVE-2021-3802, DLA-2809-1, DLA-3387-1, GHSA-p3gq-xgj7-pfr7 and 8 more.