CVE-2016-0728 Use after free in n/a
High 7.8
Published
Updated
Check this codebase for CVE-2016-0728 and fix it if it is affected.
What it is: CVE-2016-0728 is a high-severity use after free vulnerability in Canonical Ubuntu Linux, published on 8 Feb 2016. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2016-0728 in the wild and no public exploit code.
Affected product: Canonical Ubuntu 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-2016-0728/ (Markdown: https://insights.sbomify.com/CVE-2016-0728/index.md)
Local attackers can exploit a use-after-free flaw in the Linux kernel keyring to gain privileges or cause a denial of service.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2016-0728?
CVE-2016-0728 is a high-severity use after free vulnerability in Canonical Ubuntu Linux, published on 8 Feb 2016. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
The join_session_keyring function in security/keys/process_keys.c in the Linux kernel before 4.4.1 mishandles object references in a certain error case, which allows local users to gain privileges or cause a denial of service (integer overflow and use-after-free) via crafted keyctl commands.
Which versions are affected by CVE-2016-0728?
It affects 5 products.
Linux distribution packages (40)
kernel Red Hat:enterprise_linux:7::client | All versions | 0:3.10.0-327.4.5.el7 |
kernel-abi-whitelists Red Hat:enterprise_linux:7::client | All versions | 0:3.10.0-327.4.5.el7 |
kernel-debug Red Hat:enterprise_linux:7::client | All versions | 0:3.10.0-327.4.5.el7 |
kernel-debug-debuginfo Red Hat:enterprise_linux:7::client | All versions | 0:3.10.0-327.4.5.el7 |
kernel-debug-devel Red Hat:enterprise_linux:7::client | All versions | 0:3.10.0-327.4.5.el7 |
kernel-debuginfo Red Hat:enterprise_linux:7::client | All versions | 0:3.10.0-327.4.5.el7 |
kernel-debuginfo-common-x86_64 Red Hat:enterprise_linux:7::client | All versions | 0:3.10.0-327.4.5.el7 |
kernel-devel Red Hat:enterprise_linux:7::client | All versions | 0:3.10.0-327.4.5.el7 |
kernel-doc Red Hat:enterprise_linux:7::client | All versions | 0:3.10.0-327.4.5.el7 |
kernel-headers Red Hat:enterprise_linux:7::client | All versions | 0:3.10.0-327.4.5.el7 |
kernel-tools Red Hat:enterprise_linux:7::client | All versions | 0:3.10.0-327.4.5.el7 |
kernel-tools-debuginfo Red Hat:enterprise_linux:7::client | All versions | 0:3.10.0-327.4.5.el7 |
kernel-tools-libs Red Hat:enterprise_linux:7::client | All versions | 0:3.10.0-327.4.5.el7 |
kernel-tools-libs-devel Red Hat:enterprise_linux:7::client | All versions | 0:3.10.0-327.4.5.el7 |
perf Red Hat:enterprise_linux:7::client | All versions | 0:3.10.0-327.4.5.el7 |
perf-debuginfo Red Hat:enterprise_linux:7::client | All versions | 0:3.10.0-327.4.5.el7 |
python-perf Red Hat:enterprise_linux:7::client | All versions | 0:3.10.0-327.4.5.el7 |
python-perf-debuginfo Red Hat:enterprise_linux:7::client | All versions | 0:3.10.0-327.4.5.el7 |
kernel Red Hat:enterprise_linux:7::computenode | All versions | 0:3.10.0-327.4.5.el7 |
kernel-abi-whitelists Red Hat:enterprise_linux:7::computenode | All versions | 0:3.10.0-327.4.5.el7 |
kernel-debug Red Hat:enterprise_linux:7::computenode | All versions | 0:3.10.0-327.4.5.el7 |
kernel-debug-debuginfo Red Hat:enterprise_linux:7::computenode | All versions | 0:3.10.0-327.4.5.el7 |
kernel-debug-devel Red Hat:enterprise_linux:7::computenode | All versions | 0:3.10.0-327.4.5.el7 |
kernel-debuginfo Red Hat:enterprise_linux:7::computenode | All versions | 0:3.10.0-327.4.5.el7 |
kernel-debuginfo-common-x86_64 Red Hat:enterprise_linux:7::computenode | All versions | 0:3.10.0-327.4.5.el7 |
kernel-devel Red Hat:enterprise_linux:7::computenode | All versions | 0:3.10.0-327.4.5.el7 |
kernel-doc Red Hat:enterprise_linux:7::computenode | All versions | 0:3.10.0-327.4.5.el7 |
kernel-headers Red Hat:enterprise_linux:7::computenode | All versions | 0:3.10.0-327.4.5.el7 |
kernel-tools Red Hat:enterprise_linux:7::computenode | All versions | 0:3.10.0-327.4.5.el7 |
kernel-tools-debuginfo Red Hat:enterprise_linux:7::computenode | All versions | 0:3.10.0-327.4.5.el7 |
kernel-tools-libs Red Hat:enterprise_linux:7::computenode | All versions | 0:3.10.0-327.4.5.el7 |
kernel-tools-libs-devel Red Hat:enterprise_linux:7::computenode | All versions | 0:3.10.0-327.4.5.el7 |
perf Red Hat:enterprise_linux:7::computenode | All versions | 0:3.10.0-327.4.5.el7 |
perf-debuginfo Red Hat:enterprise_linux:7::computenode | All versions | 0:3.10.0-327.4.5.el7 |
python-perf Red Hat:enterprise_linux:7::computenode | All versions | 0:3.10.0-327.4.5.el7 |
python-perf-debuginfo Red Hat:enterprise_linux:7::computenode | All versions | 0:3.10.0-327.4.5.el7 |
kernel Red Hat:enterprise_linux:7::server | All versions | 0:3.10.0-327.4.5.el7 |
kernel-abi-whitelists Red Hat:enterprise_linux:7::server | All versions | 0:3.10.0-327.4.5.el7 |
kernel-bootwrapper Red Hat:enterprise_linux:7::server | All versions | 0:3.10.0-327.4.5.el7 |
kernel-debug Red Hat:enterprise_linux:7::server | All versions | 0:3.10.0-327.4.5.el7 |
Products include Canonical Ubuntu Linux, Debian Debian Linux, Google Android, Hp Server Migration Pack, Linux kernel.
How do I fix CVE-2016-0728?
Apply the vendor's patch.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2016-0728 being exploited?
There is no known exploitation of CVE-2016-0728 in the wild and no public exploit code.
Public exploit code: 2 Exploit-DB entries and 9 proofs of concept on GitHub.
Other vulnerabilities in Canonical Ubuntu Linux
Sources
Also known as CVE-2016-7028, DEBIAN-CVE-2016-0728, GHSA-pm5x-hxhr-68w7, MGASA-2016-0031, MGASA-2016-0032, MGASA-2016-0033 and 10 more.