CVE-2009-4212 Integer overflow in n/a
Critical 10.0
Published
Updated
Check this codebase for CVE-2009-4212 and fix it if it is affected.
What it is: CVE-2009-4212 is a critical vulnerability in Mit Kerberos 5, published on 13 Jan 2010. 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-2009-4212 in the wild and no public exploit code.
Affected product: Mit Kerberos 5. 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-2009-4212/ (Markdown: https://insights.sbomify.com/CVE-2009-4212/index.md)
Remote attackers can cause a denial of service or execute arbitrary code in MIT Kerberos 5 by sending malformed ciphertext to the AES or RC4 decryption functions.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2009-4212?
CVE-2009-4212 is a critical vulnerability in Mit Kerberos 5, published on 13 Jan 2010. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Multiple integer underflows in the (1) AES and (2) RC4 decryption functionality in the crypto library in MIT Kerberos 5 (aka krb5) 1.3 through 1.6.3, and 1.7 before 1.7.1, allow remote attackers to cause a denial of service (daemon crash) or possibly execute arbitrary code by providing ciphertext with a length that is too short to be valid.
Weakness: CWE-189
Which versions are affected by CVE-2009-4212?
It affects 2 products.
Linux distribution packages (40)
krb5 Red Hat:enterprise_linux:3::as | All versions | 0:1.2.7-71 |
krb5-debuginfo Red Hat:enterprise_linux:3::as | All versions | 0:1.2.7-71 |
krb5-devel Red Hat:enterprise_linux:3::as | All versions | 0:1.2.7-71 |
krb5-libs Red Hat:enterprise_linux:3::as | All versions | 0:1.2.7-71 |
krb5-server Red Hat:enterprise_linux:3::as | All versions | 0:1.2.7-71 |
krb5-workstation Red Hat:enterprise_linux:3::as | All versions | 0:1.2.7-71 |
krb5 Red Hat:enterprise_linux:3::desktop | All versions | 0:1.2.7-71 |
krb5-debuginfo Red Hat:enterprise_linux:3::desktop | All versions | 0:1.2.7-71 |
krb5-devel Red Hat:enterprise_linux:3::desktop | All versions | 0:1.2.7-71 |
krb5-libs Red Hat:enterprise_linux:3::desktop | All versions | 0:1.2.7-71 |
krb5-server Red Hat:enterprise_linux:3::desktop | All versions | 0:1.2.7-71 |
krb5-workstation Red Hat:enterprise_linux:3::desktop | All versions | 0:1.2.7-71 |
krb5 Red Hat:enterprise_linux:3::es | All versions | 0:1.2.7-71 |
krb5-debuginfo Red Hat:enterprise_linux:3::es | All versions | 0:1.2.7-71 |
krb5-devel Red Hat:enterprise_linux:3::es | All versions | 0:1.2.7-71 |
krb5-libs Red Hat:enterprise_linux:3::es | All versions | 0:1.2.7-71 |
krb5-server Red Hat:enterprise_linux:3::es | All versions | 0:1.2.7-71 |
krb5-workstation Red Hat:enterprise_linux:3::es | All versions | 0:1.2.7-71 |
krb5 Red Hat:enterprise_linux:3::ws | All versions | 0:1.2.7-71 |
krb5-debuginfo Red Hat:enterprise_linux:3::ws | All versions | 0:1.2.7-71 |
krb5-devel Red Hat:enterprise_linux:3::ws | All versions | 0:1.2.7-71 |
krb5-libs Red Hat:enterprise_linux:3::ws | All versions | 0:1.2.7-71 |
krb5-server Red Hat:enterprise_linux:3::ws | All versions | 0:1.2.7-71 |
krb5-workstation Red Hat:enterprise_linux:3::ws | All versions | 0:1.2.7-71 |
krb5 Red Hat:enterprise_linux:4::as | All versions | 0:1.3.4-62.el4_8.1 |
krb5-debuginfo Red Hat:enterprise_linux:4::as | All versions | 0:1.3.4-62.el4_8.1 |
krb5-devel Red Hat:enterprise_linux:4::as | All versions | 0:1.3.4-62.el4_8.1 |
krb5-libs Red Hat:enterprise_linux:4::as | All versions | 0:1.3.4-62.el4_8.1 |
krb5-server Red Hat:enterprise_linux:4::as | All versions | 0:1.3.4-62.el4_8.1 |
krb5-workstation Red Hat:enterprise_linux:4::as | All versions | 0:1.3.4-62.el4_8.1 |
krb5 Red Hat:enterprise_linux:4::desktop | All versions | 0:1.3.4-62.el4_8.1 |
krb5-debuginfo Red Hat:enterprise_linux:4::desktop | All versions | 0:1.3.4-62.el4_8.1 |
krb5-devel Red Hat:enterprise_linux:4::desktop | All versions | 0:1.3.4-62.el4_8.1 |
krb5-libs Red Hat:enterprise_linux:4::desktop | All versions | 0:1.3.4-62.el4_8.1 |
krb5-server Red Hat:enterprise_linux:4::desktop | All versions | 0:1.3.4-62.el4_8.1 |
krb5-workstation Red Hat:enterprise_linux:4::desktop | All versions | 0:1.3.4-62.el4_8.1 |
krb5 Red Hat:enterprise_linux:4::es | All versions | 0:1.3.4-62.el4_8.1 |
krb5-debuginfo Red Hat:enterprise_linux:4::es | All versions | 0:1.3.4-62.el4_8.1 |
krb5-devel Red Hat:enterprise_linux:4::es | All versions | 0:1.3.4-62.el4_8.1 |
krb5-libs Red Hat:enterprise_linux:4::es | All versions | 0:1.3.4-62.el4_8.1 |
Products include Mit Kerberos, Mit Kerberos 5.
How do I fix CVE-2009-4212?
Upgrade to a fixed version.
Is CVE-2009-4212 being exploited?
There is no known exploitation of CVE-2009-4212 in the wild and no public exploit code.
Other vulnerabilities in Mit Kerberos 5
Sources
Also known as DEBIAN-CVE-2009-4212, DSA-1969-1, GHSA-39cv-j24w-8wvf, RHSA-2010:0029.