CVE-2019-19527 Use after free in n/a
Medium 6.8
Published
Updated
Check this codebase for CVE-2019-19527 and fix it if it is affected.
What it is: CVE-2019-19527 is a medium-severity use after free vulnerability in Debian Debian Linux, published on 3 Dec 2019. 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-2019-19527 in the wild and no public exploit code.
Affected product: Debian Debian 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-2019-19527/ (Markdown: https://insights.sbomify.com/CVE-2019-19527/index.md)
A malicious USB device can trigger a use-after-free in the Linux kernel, potentially allowing code execution or privilege escalation.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2019-19527?
CVE-2019-19527 is a medium-severity use after free vulnerability in Debian Debian Linux, published on 3 Dec 2019. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In the Linux kernel before 5.2.10, there is a use-after-free bug that can be caused by a malicious USB device in the drivers/hid/usbhid/hiddev.c driver, aka CID-9c09b214f30e.
Weakness: CWE-416
Which versions are affected by CVE-2019-19527?
It affects 3 products.
Linux distribution packages (40)
kernel-rt Red Hat:enterprise_linux:8::nfv | All versions | 0:4.18.0-147.8.1.rt24.101.el8_1 |
kernel-rt-core Red Hat:enterprise_linux:8::nfv | All versions | 0:4.18.0-147.8.1.rt24.101.el8_1 |
kernel-rt-debug Red Hat:enterprise_linux:8::nfv | All versions | 0:4.18.0-147.8.1.rt24.101.el8_1 |
kernel-rt-debug-core Red Hat:enterprise_linux:8::nfv | All versions | 0:4.18.0-147.8.1.rt24.101.el8_1 |
kernel-rt-debug-debuginfo Red Hat:enterprise_linux:8::nfv | All versions | 0:4.18.0-147.8.1.rt24.101.el8_1 |
kernel-rt-debug-devel Red Hat:enterprise_linux:8::nfv | All versions | 0:4.18.0-147.8.1.rt24.101.el8_1 |
kernel-rt-debug-kvm Red Hat:enterprise_linux:8::nfv | All versions | 0:4.18.0-147.8.1.rt24.101.el8_1 |
kernel-rt-debug-kvm-debuginfo Red Hat:enterprise_linux:8::nfv | All versions | 0:4.18.0-147.8.1.rt24.101.el8_1 |
kernel-rt-debug-modules Red Hat:enterprise_linux:8::nfv | All versions | 0:4.18.0-147.8.1.rt24.101.el8_1 |
kernel-rt-debug-modules-extra Red Hat:enterprise_linux:8::nfv | All versions | 0:4.18.0-147.8.1.rt24.101.el8_1 |
kernel-rt-debuginfo Red Hat:enterprise_linux:8::nfv | All versions | 0:4.18.0-147.8.1.rt24.101.el8_1 |
kernel-rt-debuginfo-common-x86_64 Red Hat:enterprise_linux:8::nfv | All versions | 0:4.18.0-147.8.1.rt24.101.el8_1 |
kernel-rt-devel Red Hat:enterprise_linux:8::nfv | All versions | 0:4.18.0-147.8.1.rt24.101.el8_1 |
kernel-rt-kvm Red Hat:enterprise_linux:8::nfv | All versions | 0:4.18.0-147.8.1.rt24.101.el8_1 |
kernel-rt-kvm-debuginfo Red Hat:enterprise_linux:8::nfv | All versions | 0:4.18.0-147.8.1.rt24.101.el8_1 |
kernel-rt-modules Red Hat:enterprise_linux:8::nfv | All versions | 0:4.18.0-147.8.1.rt24.101.el8_1 |
kernel-rt-modules-extra Red Hat:enterprise_linux:8::nfv | All versions | 0:4.18.0-147.8.1.rt24.101.el8_1 |
kernel-rt Red Hat:enterprise_linux:8::realtime | All versions | 0:4.18.0-147.8.1.rt24.101.el8_1 |
kernel-rt-core Red Hat:enterprise_linux:8::realtime | All versions | 0:4.18.0-147.8.1.rt24.101.el8_1 |
kernel-rt-debug Red Hat:enterprise_linux:8::realtime | All versions | 0:4.18.0-147.8.1.rt24.101.el8_1 |
kernel-rt-debug-core Red Hat:enterprise_linux:8::realtime | All versions | 0:4.18.0-147.8.1.rt24.101.el8_1 |
kernel-rt-debug-debuginfo Red Hat:enterprise_linux:8::realtime | All versions | 0:4.18.0-147.8.1.rt24.101.el8_1 |
kernel-rt-debug-devel Red Hat:enterprise_linux:8::realtime | All versions | 0:4.18.0-147.8.1.rt24.101.el8_1 |
kernel-rt-debug-kvm-debuginfo Red Hat:enterprise_linux:8::realtime | All versions | 0:4.18.0-147.8.1.rt24.101.el8_1 |
kernel-rt-debug-modules Red Hat:enterprise_linux:8::realtime | All versions | 0:4.18.0-147.8.1.rt24.101.el8_1 |
kernel-rt-debug-modules-extra Red Hat:enterprise_linux:8::realtime | All versions | 0:4.18.0-147.8.1.rt24.101.el8_1 |
kernel-rt-debuginfo Red Hat:enterprise_linux:8::realtime | All versions | 0:4.18.0-147.8.1.rt24.101.el8_1 |
kernel-rt-debuginfo-common-x86_64 Red Hat:enterprise_linux:8::realtime | All versions | 0:4.18.0-147.8.1.rt24.101.el8_1 |
kernel-rt-devel Red Hat:enterprise_linux:8::realtime | All versions | 0:4.18.0-147.8.1.rt24.101.el8_1 |
kernel-rt-kvm-debuginfo Red Hat:enterprise_linux:8::realtime | All versions | 0:4.18.0-147.8.1.rt24.101.el8_1 |
kernel-rt-modules Red Hat:enterprise_linux:8::realtime | All versions | 0:4.18.0-147.8.1.rt24.101.el8_1 |
kernel-rt-modules-extra Red Hat:enterprise_linux:8::realtime | All versions | 0:4.18.0-147.8.1.rt24.101.el8_1 |
bpftool Red Hat:rhel_eus:7.7::computenode | All versions | 0:3.10.0-1062.36.1.el7 |
bpftool-debuginfo Red Hat:rhel_eus:7.7::computenode | All versions | 0:3.10.0-1062.36.1.el7 |
kernel Red Hat:rhel_eus:7.7::computenode | All versions | 0:3.10.0-1062.36.1.el7 |
kernel-abi-whitelists Red Hat:rhel_eus:7.7::computenode | All versions | 0:3.10.0-1062.36.1.el7 |
kernel-debug Red Hat:rhel_eus:7.7::computenode | All versions | 0:3.10.0-1062.36.1.el7 |
kernel-debug-debuginfo Red Hat:rhel_eus:7.7::computenode | All versions | 0:3.10.0-1062.36.1.el7 |
kernel-debug-devel Red Hat:rhel_eus:7.7::computenode | All versions | 0:3.10.0-1062.36.1.el7 |
kernel-debuginfo Red Hat:rhel_eus:7.7::computenode | All versions | 0:3.10.0-1062.36.1.el7 |
Products include Debian Debian Linux, Linux kernel, Opensuse Leap.
How do I fix CVE-2019-19527?
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-2019-19527 being exploited?
There is no known exploitation of CVE-2019-19527 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as DEBIAN-CVE-2019-19527, GHSA-fw8r-j75g-9f4r, RHSA-2020:1378, RHSA-2020:4236, UBUNTU-CVE-2019-19527.