# CVE-2019-17185: Race condition in n/a > Concurrent EAP-pwd handshakes in FreeRADIUS cause crashes due to shared OpenSSL context, allowing attackers to perform a Denial-of-Service attack. - **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:** 21 Mar 2020 - **Updated:** 5 Aug 2024 - **Also known as:** DEBIAN-CVE-2019-17185, GHSA-h63v-34h7-7q42, RHSA-2020:4799, RLSA-2020:4799, UBUNTU-CVE-2019-17185 ## What is CVE-2019-17185? CVE-2019-17185 is a high-severity vulnerability in Opensuse Leap, published on 21 Mar 2020. An attacker can exploit it over the internet without logging in, with no action from the victim. ### Official description In FreeRADIUS 3.0.x before 3.0.20, the EAP-pwd module used a global OpenSSL BN_CTX instance to handle all handshakes. This mean multiple threads use the same BN_CTX instance concurrently, resulting in crashes when concurrent EAP-pwd handshakes are initiated. This can be abused by an adversary as a Denial-of-Service (DoS) attack. Weakness: CWE-662 (Improper Synchronization) ## Which versions are affected by CVE-2019-17185? It affects 2 products. | Package | Ecosystem | Affected | Fixed in | | --- | --- | --- | --- | | `freeradius` | Red Hat:enterprise_linux:8::appstream | All versions | 0:3.0.20-3.module+el8.3.0+7597+67902674 | | `freeradius-debuginfo` | Red Hat:enterprise_linux:8::appstream | All versions | 0:3.0.20-3.module+el8.3.0+7597+67902674 | | `freeradius-debugsource` | Red Hat:enterprise_linux:8::appstream | All versions | 0:3.0.20-3.module+el8.3.0+7597+67902674 | | `freeradius-devel` | Red Hat:enterprise_linux:8::appstream | All versions | 0:3.0.20-3.module+el8.3.0+7597+67902674 | | `freeradius-doc` | Red Hat:enterprise_linux:8::appstream | All versions | 0:3.0.20-3.module+el8.3.0+7597+67902674 | | `freeradius-krb5` | Red Hat:enterprise_linux:8::appstream | All versions | 0:3.0.20-3.module+el8.3.0+7597+67902674 | | `freeradius-krb5-debuginfo` | Red Hat:enterprise_linux:8::appstream | All versions | 0:3.0.20-3.module+el8.3.0+7597+67902674 | | `freeradius-ldap` | Red Hat:enterprise_linux:8::appstream | All versions | 0:3.0.20-3.module+el8.3.0+7597+67902674 | | `freeradius-ldap-debuginfo` | Red Hat:enterprise_linux:8::appstream | All versions | 0:3.0.20-3.module+el8.3.0+7597+67902674 | | `freeradius-mysql` | Red Hat:enterprise_linux:8::appstream | All versions | 0:3.0.20-3.module+el8.3.0+7597+67902674 | | `freeradius-mysql-debuginfo` | Red Hat:enterprise_linux:8::appstream | All versions | 0:3.0.20-3.module+el8.3.0+7597+67902674 | | `freeradius-perl` | Red Hat:enterprise_linux:8::appstream | All versions | 0:3.0.20-3.module+el8.3.0+7597+67902674 | | `freeradius-perl-debuginfo` | Red Hat:enterprise_linux:8::appstream | All versions | 0:3.0.20-3.module+el8.3.0+7597+67902674 | | `freeradius-postgresql` | Red Hat:enterprise_linux:8::appstream | All versions | 0:3.0.20-3.module+el8.3.0+7597+67902674 | | `freeradius-postgresql-debuginfo` | Red Hat:enterprise_linux:8::appstream | All versions | 0:3.0.20-3.module+el8.3.0+7597+67902674 | | `freeradius-rest` | Red Hat:enterprise_linux:8::appstream | All versions | 0:3.0.20-3.module+el8.3.0+7597+67902674 | | `freeradius-rest-debuginfo` | Red Hat:enterprise_linux:8::appstream | All versions | 0:3.0.20-3.module+el8.3.0+7597+67902674 | | `freeradius-sqlite` | Red Hat:enterprise_linux:8::appstream | All versions | 0:3.0.20-3.module+el8.3.0+7597+67902674 | | `freeradius-sqlite-debuginfo` | Red Hat:enterprise_linux:8::appstream | All versions | 0:3.0.20-3.module+el8.3.0+7597+67902674 | | `freeradius-unixODBC` | Red Hat:enterprise_linux:8::appstream | All versions | 0:3.0.20-3.module+el8.3.0+7597+67902674 | | `freeradius-unixODBC-debuginfo` | Red Hat:enterprise_linux:8::appstream | All versions | 0:3.0.20-3.module+el8.3.0+7597+67902674 | | `freeradius-utils` | Red Hat:enterprise_linux:8::appstream | All versions | 0:3.0.20-3.module+el8.3.0+7597+67902674 | | `freeradius-utils-debuginfo` | Red Hat:enterprise_linux:8::appstream | All versions | 0:3.0.20-3.module+el8.3.0+7597+67902674 | | `python3-freeradius` | Red Hat:enterprise_linux:8::appstream | All versions | 0:3.0.20-3.module+el8.3.0+7597+67902674 | | `python3-freeradius-debuginfo` | Red Hat:enterprise_linux:8::appstream | All versions | 0:3.0.20-3.module+el8.3.0+7597+67902674 | | `freeradius` | Rocky Linux:8 | All versions | 0:3.0.20-3.module+el8.4.0+576+2d493411 | Products: Freeradius Freeradius, Opensuse Leap. ## How do I fix CVE-2019-17185? Upgrade to a fixed version. ## Is CVE-2019-17185 being exploited? There is no known exploitation of CVE-2019-17185 in the wild and no public exploit code. ## Other vulnerabilities in Opensuse Leap - [CVE-2017-10979](https://insights.sbomify.com/CVE-2017-10979/): Memory corruption in n/a (critical 9.8) - [CVE-2017-10984](https://insights.sbomify.com/CVE-2017-10984/): Memory corruption in n/a (critical 9.8) - [CVE-2017-9148](https://insights.sbomify.com/CVE-2017-9148/): Auth bypass in n/a (critical 9.8) - [CVE-2015-8763](https://insights.sbomify.com/CVE-2015-8763/): Memory corruption in n/a (high 8.1) - [CVE-2015-8764](https://insights.sbomify.com/CVE-2015-8764/): Memory corruption in n/a (high 8.1) ## Fix prompt for AI coding agents ```text Check this codebase for CVE-2019-17185 and fix it if it is affected. What it is: CVE-2019-17185 is a high-severity vulnerability in Opensuse Leap, published on 21 Mar 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-2019-17185 in the wild and no public exploit code. Affected product: Opensuse Leap. 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-2019-17185/ (Markdown: https://insights.sbomify.com/CVE-2019-17185/index.md) ``` ## Sources - CVE record: https://www.cve.org/CVERecord?id=CVE-2019-17185 - NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-17185 - OSV: https://osv.dev/vulnerability/CVE-2019-17185 --- From sbomify Insights: https://insights.sbomify.com/CVE-2019-17185/ Summaries are generated and may contain mistakes; the official description above is the record.