CVE-2018-10902 Use after free in Linux
High 7.8
Published
Updated
Check this codebase for CVE-2018-10902 and fix it if it is affected.
What it is: CVE-2018-10902 is a high-severity use after free vulnerability in Canonical Ubuntu Linux, published on 21 Aug 2018. 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-2018-10902 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-2018-10902/ (Markdown: https://insights.sbomify.com/CVE-2018-10902/index.md)
A double free vulnerability in the Linux kernel raw midi driver allows local attackers to potentially escalate privileges.
- 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-2018-10902?
CVE-2018-10902 is a high-severity use after free vulnerability in Canonical Ubuntu Linux, published on 21 Aug 2018. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
It was found that the raw midi kernel driver does not protect against concurrent access which leads to a double realloc (double free) in snd_rawmidi_input_params() and snd_rawmidi_output_status() which are part of snd_rawmidi_ioctl() handler in rawmidi.c file. A malicious local attacker could possibly use this for privilege escalation.
Which versions are affected by CVE-2018-10902?
It affects 6 products.
Linux distribution packages (40)
kernel Red Hat:enterprise_linux:6::client | All versions | 0:2.6.32-754.11.1.el6 |
kernel-abi-whitelists Red Hat:enterprise_linux:6::client | All versions | 0:2.6.32-754.11.1.el6 |
kernel-debug Red Hat:enterprise_linux:6::client | All versions | 0:2.6.32-754.11.1.el6 |
kernel-debug-debuginfo Red Hat:enterprise_linux:6::client | All versions | 0:2.6.32-754.11.1.el6 |
kernel-debug-devel Red Hat:enterprise_linux:6::client | All versions | 0:2.6.32-754.11.1.el6 |
kernel-debuginfo Red Hat:enterprise_linux:6::client | All versions | 0:2.6.32-754.11.1.el6 |
kernel-debuginfo-common-i686 Red Hat:enterprise_linux:6::client | All versions | 0:2.6.32-754.11.1.el6 |
kernel-debuginfo-common-x86_64 Red Hat:enterprise_linux:6::client | All versions | 0:2.6.32-754.11.1.el6 |
kernel-devel Red Hat:enterprise_linux:6::client | All versions | 0:2.6.32-754.11.1.el6 |
kernel-doc Red Hat:enterprise_linux:6::client | All versions | 0:2.6.32-754.11.1.el6 |
kernel-firmware Red Hat:enterprise_linux:6::client | All versions | 0:2.6.32-754.11.1.el6 |
kernel-headers Red Hat:enterprise_linux:6::client | All versions | 0:2.6.32-754.11.1.el6 |
perf Red Hat:enterprise_linux:6::client | All versions | 0:2.6.32-754.11.1.el6 |
perf-debuginfo Red Hat:enterprise_linux:6::client | All versions | 0:2.6.32-754.11.1.el6 |
python-perf Red Hat:enterprise_linux:6::client | All versions | 0:2.6.32-754.11.1.el6 |
python-perf-debuginfo Red Hat:enterprise_linux:6::client | All versions | 0:2.6.32-754.11.1.el6 |
kernel Red Hat:enterprise_linux:6::computenode | All versions | 0:2.6.32-754.11.1.el6 |
kernel-abi-whitelists Red Hat:enterprise_linux:6::computenode | All versions | 0:2.6.32-754.11.1.el6 |
kernel-debug Red Hat:enterprise_linux:6::computenode | All versions | 0:2.6.32-754.11.1.el6 |
kernel-debug-debuginfo Red Hat:enterprise_linux:6::computenode | All versions | 0:2.6.32-754.11.1.el6 |
kernel-debug-devel Red Hat:enterprise_linux:6::computenode | All versions | 0:2.6.32-754.11.1.el6 |
kernel-debuginfo Red Hat:enterprise_linux:6::computenode | All versions | 0:2.6.32-754.11.1.el6 |
kernel-debuginfo-common-i686 Red Hat:enterprise_linux:6::computenode | All versions | 0:2.6.32-754.11.1.el6 |
kernel-debuginfo-common-x86_64 Red Hat:enterprise_linux:6::computenode | All versions | 0:2.6.32-754.11.1.el6 |
kernel-devel Red Hat:enterprise_linux:6::computenode | All versions | 0:2.6.32-754.11.1.el6 |
kernel-doc Red Hat:enterprise_linux:6::computenode | All versions | 0:2.6.32-754.11.1.el6 |
kernel-firmware Red Hat:enterprise_linux:6::computenode | All versions | 0:2.6.32-754.11.1.el6 |
kernel-headers Red Hat:enterprise_linux:6::computenode | All versions | 0:2.6.32-754.11.1.el6 |
perf Red Hat:enterprise_linux:6::computenode | All versions | 0:2.6.32-754.11.1.el6 |
perf-debuginfo Red Hat:enterprise_linux:6::computenode | All versions | 0:2.6.32-754.11.1.el6 |
python-perf Red Hat:enterprise_linux:6::computenode | All versions | 0:2.6.32-754.11.1.el6 |
python-perf-debuginfo Red Hat:enterprise_linux:6::computenode | All versions | 0:2.6.32-754.11.1.el6 |
kernel Red Hat:enterprise_linux:6::server | All versions | 0:2.6.32-754.11.1.el6 |
kernel-abi-whitelists Red Hat:enterprise_linux:6::server | All versions | 0:2.6.32-754.11.1.el6 |
kernel-bootwrapper Red Hat:enterprise_linux:6::server | All versions | 0:2.6.32-754.11.1.el6 |
kernel-debug Red Hat:enterprise_linux:6::server | All versions | 0:2.6.32-754.11.1.el6 |
kernel-debug-debuginfo Red Hat:enterprise_linux:6::server | All versions | 0:2.6.32-754.11.1.el6 |
kernel-debug-devel Red Hat:enterprise_linux:6::server | All versions | 0:2.6.32-754.11.1.el6 |
kernel-debuginfo Red Hat:enterprise_linux:6::server | All versions | 0:2.6.32-754.11.1.el6 |
kernel-debuginfo-common-i686 Red Hat:enterprise_linux:6::server | All versions | 0:2.6.32-754.11.1.el6 |
Products include Canonical Ubuntu Linux, Debian Debian Linux, Linux kernel, Redhat Enterprise Linux Desktop, Redhat Enterprise Linux Server, Redhat Enterprise Linux Workstation.
How do I fix CVE-2018-10902?
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-2018-10902 being exploited?
There is no known exploitation of CVE-2018-10902 in the wild and no public exploit code.
Other vulnerabilities in Canonical Ubuntu Linux
Sources
Also known as DEBIAN-CVE-2018-10902, GHSA-fw8c-q6fq-37rg, RHSA-2019:0415, UBUNTU-CVE-2018-10902.