# CVE-2019-20446: Denial of service in n/a > An attacker can cause denial of service in applications using librsvg by providing a crafted SVG file with nested patterns that trigger exponential growth in rendered objects. - **Severity:** Medium 6.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H`) - **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:** Yes - **Published:** 2 Feb 2020 - **Updated:** 5 Aug 2024 - **Also known as:** ALPINE-CVE-2019-20446, ALSA-2020:4709, DEBIAN-CVE-2019-20446, GHSA-whvx-2m69-j66g, JLSEC-2026-511, MGASA-2020-0159, RHSA-2020:4709, RLSA-2020:4709, SUSE-SU-2020:0604-1, SUSE-SU-2020:0629-1, SUSE-SU-2020:0629-2, UBUNTU-CVE-2019-20446, openSUSE-SU-2020:0343-1 ## What is CVE-2019-20446? CVE-2019-20446 is a medium-severity denial of service vulnerability in Canonical Ubuntu Linux, published on 2 Feb 2020. 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 In xml.rs in GNOME librsvg before 2.46.2, a crafted SVG file with nested patterns can cause denial of service when passed to the library for processing. The attacker constructs pattern elements so that the number of final rendered objects grows exponentially. Weakness: CWE-400 (Uncontrolled Resource Consumption) ## Which versions are affected by CVE-2019-20446? It affects 6 products. | Package | Ecosystem | Affected | Fixed in | | --- | --- | --- | --- | | `librsvg2` | AlmaLinux:8 | All versions | 2.42.7-4.el8 | | `librsvg2-devel` | AlmaLinux:8 | All versions | 2.42.7-4.el8 | | `librsvg2-tools` | AlmaLinux:8 | All versions | 2.42.7-4.el8 | | `librsvg2` | Red Hat:enterprise_linux:8::appstream | All versions | 0:2.42.7-4.el8 | | `librsvg2-debuginfo` | Red Hat:enterprise_linux:8::appstream | All versions | 0:2.42.7-4.el8 | | `librsvg2-debugsource` | Red Hat:enterprise_linux:8::appstream | All versions | 0:2.42.7-4.el8 | | `librsvg2-devel` | Red Hat:enterprise_linux:8::appstream | All versions | 0:2.42.7-4.el8 | | `librsvg2-tools` | Red Hat:enterprise_linux:8::appstream | All versions | 0:2.42.7-4.el8 | | `librsvg2-tools-debuginfo` | Red Hat:enterprise_linux:8::appstream | All versions | 0:2.42.7-4.el8 | | `librsvg2` | Rocky Linux:8 | All versions | 0:2.42.7-4.el8 | | `librsvg` | SUSE:Linux Enterprise Module for Basesystem 15 SP1 | All versions | 2.42.8-3.3.1 | | `librsvg` | SUSE:Linux Enterprise Module for Desktop Applications 15 SP1 | All versions | 2.42.8-3.3.1 | | `librsvg` | SUSE:Linux Enterprise Module for Package Hub 15 SP1 | All versions | 2.42.8-3.3.1 | | `librsvg` | SUSE:Linux Enterprise Module for Package Hub 15 SP2 | All versions | 2.42.8-3.3.1 | | `librsvg` | SUSE:Linux Enterprise Server 12 SP4 | All versions | 2.40.21-5.9.1 | | `librsvg` | SUSE:Linux Enterprise Server 12 SP5 | All versions | 2.40.21-5.9.1 | | `librsvg` | SUSE:Linux Enterprise Server for SAP Applications 12 SP4 | All versions | 2.40.21-5.9.1 | | `librsvg` | SUSE:Linux Enterprise Server for SAP Applications 12 SP5 | All versions | 2.40.21-5.9.1 | | `librsvg` | SUSE:Linux Enterprise Software Development Kit 12 SP4 | All versions | 2.40.21-5.9.1 | | `librsvg` | SUSE:Linux Enterprise Software Development Kit 12 SP5 | All versions | 2.40.21-5.9.1 | | `librsvg` | openSUSE:Leap 15.1 | All versions | 2.42.8-lp151.3.3.1 | Products: Canonical Ubuntu Linux, Debian Debian Linux, Fedoraproject Fedora, Gnome Librsvg, Netapp Active Iq Unified Manager, Opensuse Leap. ## How do I fix CVE-2019-20446? Upgrade to a fixed version. ## Is CVE-2019-20446 being exploited? There is no known exploitation of CVE-2019-20446 in the wild and no public exploit code. ## Other vulnerabilities in Canonical Ubuntu Linux - [CVE-2020-11651](https://insights.sbomify.com/CVE-2020-11651/): SaltStack Salt Authentication Bypass (critical 9.8, exploited in the wild) - [CVE-2020-7247](https://insights.sbomify.com/CVE-2020-7247/): OpenSMTPD Remote Code Execution (critical 9.8, exploited in the wild) - [CVE-2019-16928](https://insights.sbomify.com/CVE-2019-16928/): Exim Out-of-bounds Write (critical 9.8, exploited in the wild) - [CVE-2018-6789](https://insights.sbomify.com/CVE-2018-6789/): Exim Buffer Overflow (critical 9.8, exploited in the wild) - [CVE-2015-2590](https://insights.sbomify.com/CVE-2015-2590/): Oracle Java SE and Java SE Embedded Remote Code Execution (critical 9.8, exploited in the wild) ## Fix prompt for AI coding agents ```text Check this codebase for CVE-2019-20446 and fix it if it is affected. What it is: CVE-2019-20446 is a medium-severity denial of service vulnerability in Canonical Ubuntu Linux, published on 2 Feb 2020. 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-2019-20446 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-2019-20446/ (Markdown: https://insights.sbomify.com/CVE-2019-20446/index.md) ``` ## Sources - CVE record: https://www.cve.org/CVERecord?id=CVE-2019-20446 - NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-20446 - OSV: https://osv.dev/vulnerability/CVE-2019-20446 --- From sbomify Insights: https://insights.sbomify.com/CVE-2019-20446/ Summaries are generated and may contain mistakes; the official description above is the record.