CVE-2012-0841 Denial of service in n/a
Medium 5.0
Published
Updated
Check this codebase for CVE-2012-0841 and fix it if it is affected.
What it is: CVE-2012-0841 is a medium-severity denial of service vulnerability in Apple Iphone Os, published on 21 Dec 2012. 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-2012-0841 in the wild and no public exploit code.
Affected product: Apple Iphone Os. 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-2012-0841/ (Markdown: https://insights.sbomify.com/CVE-2012-0841/index.md)
Attackers can cause denial of service via CPU exhaustion by sending crafted XML data to applications using the vulnerable libxml2 library.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2012-0841?
CVE-2012-0841 is a medium-severity denial of service vulnerability in Apple Iphone Os, published on 21 Dec 2012. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
libxml2 before 2.8.0 computes hash values without restricting the ability to trigger hash collisions predictably, which allows context-dependent attackers to cause a denial of service (CPU consumption) via crafted XML data.
Weakness: CWE-399
Which versions are affected by CVE-2012-0841?
It affects 2 products.
Linux distribution packages (30)
libxml2 Red Hat:enterprise_linux:5::client | All versions | 0:2.6.26-2.1.15.el5_8.2 |
libxml2-debuginfo Red Hat:enterprise_linux:5::client | All versions | 0:2.6.26-2.1.15.el5_8.2 |
libxml2-python Red Hat:enterprise_linux:5::client | All versions | 0:2.6.26-2.1.15.el5_8.2 |
libxml2 Red Hat:enterprise_linux:5::client_workstation | All versions | 0:2.6.26-2.1.15.el5_8.2 |
libxml2-debuginfo Red Hat:enterprise_linux:5::client_workstation | All versions | 0:2.6.26-2.1.15.el5_8.2 |
libxml2-devel Red Hat:enterprise_linux:5::client_workstation | All versions | 0:2.6.26-2.1.15.el5_8.2 |
libxml2 Red Hat:enterprise_linux:5::server | All versions | 0:2.6.26-2.1.15.el5_8.2 |
libxml2-debuginfo Red Hat:enterprise_linux:5::server | All versions | 0:2.6.26-2.1.15.el5_8.2 |
libxml2-devel Red Hat:enterprise_linux:5::server | All versions | 0:2.6.26-2.1.15.el5_8.2 |
libxml2-python Red Hat:enterprise_linux:5::server | All versions | 0:2.6.26-2.1.15.el5_8.2 |
libxml2 Red Hat:enterprise_linux:6::client | All versions | 0:2.7.6-4.el6_2.4 |
libxml2-debuginfo Red Hat:enterprise_linux:6::client | All versions | 0:2.7.6-4.el6_2.4 |
libxml2-devel Red Hat:enterprise_linux:6::client | All versions | 0:2.7.6-4.el6_2.4 |
libxml2-python Red Hat:enterprise_linux:6::client | All versions | 0:2.7.6-4.el6_2.4 |
libxml2-static Red Hat:enterprise_linux:6::client | All versions | 0:2.7.6-4.el6_2.4 |
libxml2 Red Hat:enterprise_linux:6::computenode | All versions | 0:2.7.6-4.el6_2.4 |
libxml2-debuginfo Red Hat:enterprise_linux:6::computenode | All versions | 0:2.7.6-4.el6_2.4 |
libxml2-devel Red Hat:enterprise_linux:6::computenode | All versions | 0:2.7.6-4.el6_2.4 |
libxml2-python Red Hat:enterprise_linux:6::computenode | All versions | 0:2.7.6-4.el6_2.4 |
libxml2-static Red Hat:enterprise_linux:6::computenode | All versions | 0:2.7.6-4.el6_2.4 |
libxml2 Red Hat:enterprise_linux:6::server | All versions | 0:2.7.6-4.el6_2.4 |
libxml2-debuginfo Red Hat:enterprise_linux:6::server | All versions | 0:2.7.6-4.el6_2.4 |
libxml2-devel Red Hat:enterprise_linux:6::server | All versions | 0:2.7.6-4.el6_2.4 |
libxml2-python Red Hat:enterprise_linux:6::server | All versions | 0:2.7.6-4.el6_2.4 |
libxml2-static Red Hat:enterprise_linux:6::server | All versions | 0:2.7.6-4.el6_2.4 |
libxml2 Red Hat:enterprise_linux:6::workstation | All versions | 0:2.7.6-4.el6_2.4 |
libxml2-debuginfo Red Hat:enterprise_linux:6::workstation | All versions | 0:2.7.6-4.el6_2.4 |
libxml2-devel Red Hat:enterprise_linux:6::workstation | All versions | 0:2.7.6-4.el6_2.4 |
libxml2-python Red Hat:enterprise_linux:6::workstation | All versions | 0:2.7.6-4.el6_2.4 |
libxml2-static Red Hat:enterprise_linux:6::workstation | All versions | 0:2.7.6-4.el6_2.4 |
Products include Apple Iphone Os, Xmlsoft Libxml2.
How do I fix CVE-2012-0841?
Upgrade to a fixed version.
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-2012-0841 being exploited?
There is no known exploitation of CVE-2012-0841 in the wild and no public exploit code.
Other vulnerabilities in Apple Iphone Os
Sources
Also known as DEBIAN-CVE-2012-0841, DSA-2417-1, GHSA-339p-rqfr-wg3j, RHSA-2012:0324.