CVE-2011-3256 Memory corruption in n/a
Medium 4.3
Published
Updated
Check this codebase for CVE-2011-3256 and fix it if it is affected.
What it is: CVE-2011-3256 is a medium-severity memory corruption vulnerability in Apple Iphone Os, published on 14 Oct 2011. 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-2011-3256 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-2011-3256/ (Markdown: https://insights.sbomify.com/CVE-2011-3256/index.md)
Remote attackers can execute arbitrary code or cause denial of service via crafted fonts in FreeType, affecting iOS and Linux systems.
- 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-2011-3256?
CVE-2011-3256 is a medium-severity memory corruption vulnerability in Apple Iphone Os, published on 14 Oct 2011. 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
FreeType 2 before 2.4.7, as used in CoreGraphics in Apple iOS before 5, Mandriva Enterprise Server 5, and possibly other products, allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted font, a different vulnerability than CVE-2011-0226.
Weakness: CWE-94
Which versions are affected by CVE-2011-3256?
It affects 1 product.
Linux distribution packages (34)
freetype Red Hat:enterprise_linux:4::as | All versions | 0:2.1.9-20.el4 |
freetype-debuginfo Red Hat:enterprise_linux:4::as | All versions | 0:2.1.9-20.el4 |
freetype-demos Red Hat:enterprise_linux:4::as | All versions | 0:2.1.9-20.el4 |
freetype-devel Red Hat:enterprise_linux:4::as | All versions | 0:2.1.9-20.el4 |
freetype-utils Red Hat:enterprise_linux:4::as | All versions | 0:2.1.9-20.el4 |
freetype Red Hat:enterprise_linux:4::desktop | All versions | 0:2.1.9-20.el4 |
freetype-debuginfo Red Hat:enterprise_linux:4::desktop | All versions | 0:2.1.9-20.el4 |
freetype-demos Red Hat:enterprise_linux:4::desktop | All versions | 0:2.1.9-20.el4 |
freetype-devel Red Hat:enterprise_linux:4::desktop | All versions | 0:2.1.9-20.el4 |
freetype-utils Red Hat:enterprise_linux:4::desktop | All versions | 0:2.1.9-20.el4 |
freetype Red Hat:enterprise_linux:4::es | All versions | 0:2.1.9-20.el4 |
freetype-debuginfo Red Hat:enterprise_linux:4::es | All versions | 0:2.1.9-20.el4 |
freetype-demos Red Hat:enterprise_linux:4::es | All versions | 0:2.1.9-20.el4 |
freetype-devel Red Hat:enterprise_linux:4::es | All versions | 0:2.1.9-20.el4 |
freetype-utils Red Hat:enterprise_linux:4::es | All versions | 0:2.1.9-20.el4 |
freetype Red Hat:enterprise_linux:4::ws | All versions | 0:2.1.9-20.el4 |
freetype-debuginfo Red Hat:enterprise_linux:4::ws | All versions | 0:2.1.9-20.el4 |
freetype-demos Red Hat:enterprise_linux:4::ws | All versions | 0:2.1.9-20.el4 |
freetype-devel Red Hat:enterprise_linux:4::ws | All versions | 0:2.1.9-20.el4 |
freetype-utils Red Hat:enterprise_linux:4::ws | All versions | 0:2.1.9-20.el4 |
freetype Red Hat:enterprise_linux:5::client | All versions | 0:2.2.1-28.el5_7.1 |
freetype-debuginfo Red Hat:enterprise_linux:5::client | All versions | 0:2.2.1-28.el5_7.1 |
freetype Red Hat:enterprise_linux:5::client_workstation | All versions | 0:2.2.1-28.el5_7.1 |
freetype-debuginfo Red Hat:enterprise_linux:5::client_workstation | All versions | 0:2.2.1-28.el5_7.1 |
freetype-demos Red Hat:enterprise_linux:5::client_workstation | All versions | 0:2.2.1-28.el5_7.1 |
freetype-devel Red Hat:enterprise_linux:5::client_workstation | All versions | 0:2.2.1-28.el5_7.1 |
freetype Red Hat:enterprise_linux:5::server | All versions | 0:2.2.1-28.el5_7.1 |
freetype-debuginfo Red Hat:enterprise_linux:5::server | All versions | 0:2.2.1-28.el5_7.1 |
freetype-demos Red Hat:enterprise_linux:5::server | All versions | 0:2.2.1-28.el5_7.1 |
freetype-devel Red Hat:enterprise_linux:5::server | All versions | 0:2.2.1-28.el5_7.1 |
freetype Red Hat:enterprise_linux:6::server | All versions | 0:2.3.11-6.el6_1.7 |
freetype-debuginfo Red Hat:enterprise_linux:6::server | All versions | 0:2.3.11-6.el6_1.7 |
freetype-demos Red Hat:enterprise_linux:6::server | All versions | 0:2.3.11-6.el6_1.7 |
freetype-devel Red Hat:enterprise_linux:6::server | All versions | 0:2.3.11-6.el6_1.7 |
Products include Apple Iphone Os.
How do I fix CVE-2011-3256?
Upgrade to a fixed version.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2011-3256 being exploited?
There is no known exploitation of CVE-2011-3256 in the wild and no public exploit code.
Other vulnerabilities in Apple Iphone Os
Sources
Also known as DEBIAN-CVE-2011-3256, DSA-2328-1, GHSA-mjq4-j36x-7h6p, RHSA-2011:1402.