CVE-2021-4213 Memory corruption in JSS
High 7.5
Published
Updated
Check this codebase for CVE-2021-4213 and fix it if it is affected.
What it is: CVE-2021-4213 is a high-severity memory corruption vulnerability in Debian Debian Linux, published on 24 Aug 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2021-4213 in the wild and no public exploit code.
Affected product: Debian Debian Linux. 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-2021-4213/ (Markdown: https://insights.sbomify.com/CVE-2021-4213/index.md)
An attacker can cause a denial of service by triggering memory leaks in JSS, leading to server RAM saturation and out-of-memory crashes.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2021-4213?
CVE-2021-4213 is a high-severity memory corruption vulnerability in Debian Debian Linux, published on 24 Aug 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A flaw was found in JSS, where it did not properly free up all memory. Over time, the wasted memory builds up in the server memory, saturating the server’s RAM. This flaw allows an attacker to force the invocation of an out-of-memory process, causing a denial of service.
Weakness: CWE-401
Which versions are affected by CVE-2021-4213?
It affects 3 products.
Linux distribution packages (40)
jss AlmaLinux:8 | All versions | 4.9.3-1.module_el8.6.0+2764+9fc58d50 |
jss-javadoc AlmaLinux:8 | All versions | 4.9.3-1.module_el8.6.0+2764+9fc58d50 |
ldapjdk AlmaLinux:8 | All versions | 4.23.0-1.module_el8.6.0+2764+9fc58d50 |
ldapjdk-javadoc AlmaLinux:8 | All versions | 4.23.0-1.module_el8.6.0+2764+9fc58d50 |
pki-acme AlmaLinux:8 | All versions | 10.12.0-2.module_el8.6.0+2764+9fc58d50 |
pki-base AlmaLinux:8 | All versions | 10.12.0-2.module_el8.6.0+2764+9fc58d50 |
pki-base-java AlmaLinux:8 | All versions | 10.12.0-2.module_el8.6.0+2764+9fc58d50 |
pki-ca AlmaLinux:8 | All versions | 10.12.0-2.module_el8.6.0+2764+9fc58d50 |
pki-kra AlmaLinux:8 | All versions | 10.12.0-2.module_el8.6.0+2764+9fc58d50 |
pki-server AlmaLinux:8 | All versions | 10.12.0-2.module_el8.6.0+2764+9fc58d50 |
pki-symkey AlmaLinux:8 | All versions | 10.12.0-2.module_el8.6.0+2764+9fc58d50 |
pki-tools AlmaLinux:8 | All versions | 10.12.0-2.module_el8.6.0+2764+9fc58d50 |
python3-pki AlmaLinux:8 | All versions | 10.12.0-2.module_el8.6.0+2764+9fc58d50 |
tomcatjss AlmaLinux:8 | All versions | 7.7.1-1.module_el8.6.0+2764+9fc58d50 |
jss Red Hat:certificate_system:10.4::el8 | All versions | 0:4.9.8-1.module+el8pki+19895+c800dfbd |
redhat-pki Red Hat:certificate_system:10.4::el8 | All versions | 0:10.13.9-5.module+el8pki+21062+4ed906e8 |
jss Red Hat:enterprise_linux:8::appstream | All versions | 0:4.9.3-1.module+el8.6.0+14244+60d461b7 |
jss-debuginfo Red Hat:enterprise_linux:8::appstream | All versions | 0:4.9.3-1.module+el8.6.0+14244+60d461b7 |
jss-debugsource Red Hat:enterprise_linux:8::appstream | All versions | 0:4.9.3-1.module+el8.6.0+14244+60d461b7 |
jss-javadoc Red Hat:enterprise_linux:8::appstream | All versions | 0:4.9.3-1.module+el8.6.0+14244+60d461b7 |
ldapjdk Red Hat:enterprise_linux:8::appstream | All versions | 0:4.23.0-1.module+el8.5.0+11983+6ba118b4 |
ldapjdk-javadoc Red Hat:enterprise_linux:8::appstream | All versions | 0:4.23.0-1.module+el8.5.0+11983+6ba118b4 |
pki-acme Red Hat:enterprise_linux:8::appstream | All versions | 0:10.12.0-2.module+el8.6.0+14115+8b467244 |
pki-base Red Hat:enterprise_linux:8::appstream | All versions | 0:10.12.0-2.module+el8.6.0+14115+8b467244 |
pki-base-java Red Hat:enterprise_linux:8::appstream | All versions | 0:10.12.0-2.module+el8.6.0+14115+8b467244 |
pki-ca Red Hat:enterprise_linux:8::appstream | All versions | 0:10.12.0-2.module+el8.6.0+14115+8b467244 |
pki-core Red Hat:enterprise_linux:8::appstream | All versions | 0:10.12.0-2.module+el8.6.0+14115+8b467244 |
pki-core-debuginfo Red Hat:enterprise_linux:8::appstream | All versions | 0:10.12.0-2.module+el8.6.0+14115+8b467244 |
pki-core-debugsource Red Hat:enterprise_linux:8::appstream | All versions | 0:10.12.0-2.module+el8.6.0+14115+8b467244 |
pki-kra Red Hat:enterprise_linux:8::appstream | All versions | 0:10.12.0-2.module+el8.6.0+14115+8b467244 |
pki-server Red Hat:enterprise_linux:8::appstream | All versions | 0:10.12.0-2.module+el8.6.0+14115+8b467244 |
pki-symkey Red Hat:enterprise_linux:8::appstream | All versions | 0:10.12.0-2.module+el8.6.0+14115+8b467244 |
pki-symkey-debuginfo Red Hat:enterprise_linux:8::appstream | All versions | 0:10.12.0-2.module+el8.6.0+14115+8b467244 |
pki-tools Red Hat:enterprise_linux:8::appstream | All versions | 0:10.12.0-2.module+el8.6.0+14115+8b467244 |
pki-tools-debuginfo Red Hat:enterprise_linux:8::appstream | All versions | 0:10.12.0-2.module+el8.6.0+14115+8b467244 |
python3-pki Red Hat:enterprise_linux:8::appstream | All versions | 0:10.12.0-2.module+el8.6.0+14115+8b467244 |
tomcatjss Red Hat:enterprise_linux:8::appstream | All versions | 0:7.7.1-1.module+el8.6.0+13291+248751b1 |
jss Rocky Linux:8 | All versions | 0:4.9.3-1.module+el8.6.0+788+76246f77 |
ldapjdk Rocky Linux:8 | All versions | 0:4.23.0-1.module+el8.5.0+701+8dc610e5 |
ldapjdk Rocky Linux:8 | All versions | 0:4.23.0-1.module+el8.7.0+1069+6f3de942 |
Products include Debian Debian Linux, Dogtagpki Network Security Services for Java, Redhat Enterprise Linux.
How do I fix CVE-2021-4213?
Apply the vendor's patch.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2021-4213 being exploited?
There is no known exploitation of CVE-2021-4213 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as ALSA-2022:1851, DEBIAN-CVE-2021-4213, GHSA-727r-5fr6-wjfp, OESA-2024-1208, OESA-2024-1220, OESA-2024-1221 and 4 more.