# CVE-2020-12059: Null dereference in n/a > An attacker can crash the Ceph RGW process by sending a POST request with invalid tagging XML, causing a denial of service. - **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/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:** Not needed - **Fix available:** Yes - **Published:** 22 Apr 2020 - **Updated:** 4 Aug 2024 - **Also known as:** BIT-ceph-2020-12059, DEBIAN-CVE-2020-12059, GHSA-896g-qc8p-7wrp, OESA-2021-1009, SUSE-SU-2020:1158-1, UBUNTU-CVE-2020-12059 ## What is CVE-2020-12059? CVE-2020-12059 is a high-severity vulnerability in Canonical Ubuntu Linux, published on 22 Apr 2020. An attacker can exploit it over the internet without logging in, with no action from the victim. ### Official description An issue was discovered in Ceph through 13.2.9. A POST request with an invalid tagging XML can crash the RGW process by triggering a NULL pointer exception. Weakness: CWE-476 (NULL Pointer Dereference) ## Which versions are affected by CVE-2020-12059? 1 open source package ship an affected version, including ceph. It affects 2 products. | Package | Ecosystem | Affected | Fixed in | | --- | --- | --- | --- | | `ceph` | Bitnami | All versions to 13.2.9 | None | | `ceph` | SUSE:Enterprise Storage 5 | All versions | 12.2.12+git.1587570958.35d78d0243-2.45.1 | | `ceph` | SUSE:HPE Helion OpenStack 8 | All versions | 12.2.12+git.1587570958.35d78d0243-2.45.1 | | `ceph` | SUSE:Linux Enterprise Server 12 SP3-BCL | All versions | 12.2.12+git.1587570958.35d78d0243-2.45.1 | | `ceph` | SUSE:Linux Enterprise Server 12 SP3-LTSS | All versions | 12.2.12+git.1587570958.35d78d0243-2.45.1 | | `ceph` | SUSE:Linux Enterprise Server 12 SP4 | All versions | 12.2.12+git.1587570958.35d78d0243-2.45.1 | | `ceph` | SUSE:Linux Enterprise Server 12 SP5 | All versions | 12.2.12+git.1587570958.35d78d0243-2.45.1 | | `ceph` | SUSE:Linux Enterprise Server for SAP Applications 12 SP3 | All versions | 12.2.12+git.1587570958.35d78d0243-2.45.1 | | `ceph` | SUSE:Linux Enterprise Server for SAP Applications 12 SP4 | All versions | 12.2.12+git.1587570958.35d78d0243-2.45.1 | | `ceph` | SUSE:Linux Enterprise Server for SAP Applications 12 SP5 | All versions | 12.2.12+git.1587570958.35d78d0243-2.45.1 | | `ceph` | SUSE:Linux Enterprise Software Development Kit 12 SP4 | All versions | 12.2.12+git.1587570958.35d78d0243-2.45.1 | | `ceph` | SUSE:Linux Enterprise Software Development Kit 12 SP5 | All versions | 12.2.12+git.1587570958.35d78d0243-2.45.1 | | `ceph` | SUSE:OpenStack Cloud 8 | All versions | 12.2.12+git.1587570958.35d78d0243-2.45.1 | | `ceph` | SUSE:OpenStack Cloud Crowbar 8 | All versions | 12.2.12+git.1587570958.35d78d0243-2.45.1 | Products: Canonical Ubuntu Linux, Linuxfoundation Ceph. ## How do I fix CVE-2020-12059? Apply the vendor's patch. ## Is CVE-2020-12059 being exploited? There is no known exploitation of CVE-2020-12059 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-2020-12059 and fix it if it is affected. What it is: CVE-2020-12059 is a high-severity vulnerability in Canonical Ubuntu Linux, published on 22 Apr 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-2020-12059 in the wild and no public exploit code. Affected packages and fixed versions: - ceph (Bitnami): affected all versions up to 13.2.9; no fix listed 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-2020-12059/ (Markdown: https://insights.sbomify.com/CVE-2020-12059/index.md) ``` ## Sources - CVE record: https://www.cve.org/CVERecord?id=CVE-2020-12059 - NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-12059 - OSV: https://osv.dev/vulnerability/CVE-2020-12059 --- From sbomify Insights: https://insights.sbomify.com/CVE-2020-12059/ Summaries are generated and may contain mistakes; the official description above is the record.