CVE-2020-27778 Denial of service in poppler
High 7.5
Published
Updated
Check this codebase for CVE-2020-27778 and fix it if it is affected.
What it is: CVE-2020-27778 is a high-severity denial of service vulnerability in Debian Debian Linux, published on 3 Dec 2020. 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-2020-27778 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-2020-27778/ (Markdown: https://insights.sbomify.com/CVE-2020-27778/index.md)
A remote attacker can cause a denial of service by providing a malicious PDF file that crashes the pdftohtml program.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2020-27778?
CVE-2020-27778 is a high-severity denial of service vulnerability in Debian Debian Linux, published on 3 Dec 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A flaw was found in Poppler in the way certain PDF files were converted into HTML. A remote attacker could exploit this flaw by providing a malicious PDF file that, when processed by the 'pdftohtml' program, would crash the application causing a denial of service.
Weakness: CWE-824
Which versions are affected by CVE-2020-27778?
It affects 3 products.
Linux distribution packages (40)
evince-devel AlmaLinux:8 | All versions | 3.28.4-11.el8 |
poppler-cpp AlmaLinux:8 | All versions | 20.11.0-2.el8 |
poppler-cpp-devel AlmaLinux:8 | All versions | 20.11.0-2.el8 |
poppler-devel AlmaLinux:8 | All versions | 20.11.0-2.el8 |
poppler-glib-devel AlmaLinux:8 | All versions | 20.11.0-2.el8 |
poppler-qt5 AlmaLinux:8 | All versions | 20.11.0-2.el8 |
poppler-qt5-devel AlmaLinux:8 | All versions | 20.11.0-2.el8 |
evince Red Hat:enterprise_linux:8::appstream | All versions | 0:3.28.4-11.el8 |
evince-browser-plugin Red Hat:enterprise_linux:8::appstream | All versions | 0:3.28.4-11.el8 |
evince-browser-plugin-debuginfo Red Hat:enterprise_linux:8::appstream | All versions | 0:3.28.4-11.el8 |
evince-debuginfo Red Hat:enterprise_linux:8::appstream | All versions | 0:3.28.4-11.el8 |
evince-debugsource Red Hat:enterprise_linux:8::appstream | All versions | 0:3.28.4-11.el8 |
evince-libs Red Hat:enterprise_linux:8::appstream | All versions | 0:3.28.4-11.el8 |
evince-libs-debuginfo Red Hat:enterprise_linux:8::appstream | All versions | 0:3.28.4-11.el8 |
evince-nautilus Red Hat:enterprise_linux:8::appstream | All versions | 0:3.28.4-11.el8 |
evince-nautilus-debuginfo Red Hat:enterprise_linux:8::appstream | All versions | 0:3.28.4-11.el8 |
poppler Red Hat:enterprise_linux:8::appstream | All versions | 0:20.11.0-2.el8 |
poppler-cpp-debuginfo Red Hat:enterprise_linux:8::appstream | All versions | 0:20.11.0-2.el8 |
poppler-debuginfo Red Hat:enterprise_linux:8::appstream | All versions | 0:20.11.0-2.el8 |
poppler-debugsource Red Hat:enterprise_linux:8::appstream | All versions | 0:20.11.0-2.el8 |
poppler-glib Red Hat:enterprise_linux:8::appstream | All versions | 0:20.11.0-2.el8 |
poppler-glib-debuginfo Red Hat:enterprise_linux:8::appstream | All versions | 0:20.11.0-2.el8 |
poppler-qt5-debuginfo Red Hat:enterprise_linux:8::appstream | All versions | 0:20.11.0-2.el8 |
poppler-utils Red Hat:enterprise_linux:8::appstream | All versions | 0:20.11.0-2.el8 |
poppler-utils-debuginfo Red Hat:enterprise_linux:8::appstream | All versions | 0:20.11.0-2.el8 |
evince-browser-plugin-debuginfo Red Hat:enterprise_linux:8::crb | All versions | 0:3.28.4-11.el8 |
evince-debuginfo Red Hat:enterprise_linux:8::crb | All versions | 0:3.28.4-11.el8 |
evince-debugsource Red Hat:enterprise_linux:8::crb | All versions | 0:3.28.4-11.el8 |
evince-devel Red Hat:enterprise_linux:8::crb | All versions | 0:3.28.4-11.el8 |
evince-libs-debuginfo Red Hat:enterprise_linux:8::crb | All versions | 0:3.28.4-11.el8 |
evince-nautilus-debuginfo Red Hat:enterprise_linux:8::crb | All versions | 0:3.28.4-11.el8 |
poppler-cpp Red Hat:enterprise_linux:8::crb | All versions | 0:20.11.0-2.el8 |
poppler-cpp-debuginfo Red Hat:enterprise_linux:8::crb | All versions | 0:20.11.0-2.el8 |
poppler-cpp-devel Red Hat:enterprise_linux:8::crb | All versions | 0:20.11.0-2.el8 |
poppler-debuginfo Red Hat:enterprise_linux:8::crb | All versions | 0:20.11.0-2.el8 |
poppler-debugsource Red Hat:enterprise_linux:8::crb | All versions | 0:20.11.0-2.el8 |
poppler-devel Red Hat:enterprise_linux:8::crb | All versions | 0:20.11.0-2.el8 |
poppler-glib-debuginfo Red Hat:enterprise_linux:8::crb | All versions | 0:20.11.0-2.el8 |
poppler-glib-devel Red Hat:enterprise_linux:8::crb | All versions | 0:20.11.0-2.el8 |
poppler-qt5 Red Hat:enterprise_linux:8::crb | All versions | 0:20.11.0-2.el8 |
Products include Debian Debian Linux, Freedesktop Poppler, Redhat Enterprise Linux.
How do I fix CVE-2020-27778?
Apply the vendor's patch.
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-2020-27778 being exploited?
There is no known exploitation of CVE-2020-27778 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as ALPINE-CVE-2020-27778, ALSA-2021:1881, DEBIAN-CVE-2020-27778, GHSA-9f25-w4h3-5q5x, MGASA-2020-0445, RHSA-2021:1881 and 2 more.