# CVE-2017-1000385: Weak cryptography in n/a > Attackers can decrypt TLS traffic or sign messages using the server's private key via a Bleichenbacher attack on Erlang's RSA padding implementation. - **Severity:** Medium 5.9 (`CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N`) - **Exploited in the wild:** Not known - **Login needed:** Not needed - **Attackable:** Over the internet - **Victim action needed:** Not needed - **Fix available:** Yes - **Published:** 12 Dec 2017 - **Updated:** 5 Aug 2024 - **Also known as:** DEBIAN-CVE-2017-1000385, DLA-1207-1, DSA-4057-1, GHSA-957c-5x9m-m7rv, MGASA-2018-0060, RHBA-2019:0453, RHSA-2018:0242, RHSA-2018:0303, RHSA-2018:0368, RHSA-2018:0528, SUSE-SU-2018:0974-1, UBUNTU-CVE-2017-1000385 ## What is CVE-2017-1000385? CVE-2017-1000385 is a medium-severity vulnerability in Debian Debian Linux, published on 12 Dec 2017. An attacker can exploit it over the internet without logging in, with no action from the victim. ### Official description The Erlang otp TLS server answers with different TLS alerts to different error types in the RSA PKCS #1 1.5 padding. This allows an attacker to decrypt content or sign messages with the server's private key (this is a variation of the Bleichenbacher attack). Weakness: CWE-203 (Observable Discrepancy) ## Which versions are affected by CVE-2017-1000385? It affects 2 products. | Package | Ecosystem | Affected | Fixed in | | --- | --- | --- | --- | | `ansible-tower` | Red Hat:cloudforms_managementengine:5.10::el7 | All versions | 0:3.4.1-2.el7at | | `ansible-tower-server` | Red Hat:cloudforms_managementengine:5.10::el7 | All versions | 0:3.4.1-2.el7at | | `ansible-tower-setup` | Red Hat:cloudforms_managementengine:5.10::el7 | All versions | 0:3.4.1-2.el7at | | `ansible-tower-ui` | Red Hat:cloudforms_managementengine:5.10::el7 | All versions | 0:3.4.1-2.el7at | | `ansible-tower-venv-ansible` | Red Hat:cloudforms_managementengine:5.10::el7 | All versions | 0:3.4.1-2.el7at | | `ansible-tower-venv-tower` | Red Hat:cloudforms_managementengine:5.10::el7 | All versions | 0:3.4.1-2.el7at | | `cfme` | Red Hat:cloudforms_managementengine:5.10::el7 | All versions | 0:5.10.1.2-2.el7cf | | `cfme-amazon-smartstate` | Red Hat:cloudforms_managementengine:5.10::el7 | All versions | 0:5.10.1.2-1.el7cf | | `cfme-appliance` | Red Hat:cloudforms_managementengine:5.10::el7 | All versions | 0:5.10.1.2-1.el7cf | | `cfme-appliance-common` | Red Hat:cloudforms_managementengine:5.10::el7 | All versions | 0:5.10.1.2-1.el7cf | | `cfme-appliance-debuginfo` | Red Hat:cloudforms_managementengine:5.10::el7 | All versions | 0:5.10.1.2-1.el7cf | | `cfme-appliance-tools` | Red Hat:cloudforms_managementengine:5.10::el7 | All versions | 0:5.10.1.2-1.el7cf | | `cfme-debuginfo` | Red Hat:cloudforms_managementengine:5.10::el7 | All versions | 0:5.10.1.2-2.el7cf | | `cfme-gemset` | Red Hat:cloudforms_managementengine:5.10::el7 | All versions | 0:5.10.1.2-1.el7cf | | `cfme-gemset-debuginfo` | Red Hat:cloudforms_managementengine:5.10::el7 | All versions | 0:5.10.1.2-1.el7cf | | `erlang` | Red Hat:cloudforms_managementengine:5.10::el7 | All versions | 0:20.3.8.9-2.el7at | | `erlang-debuginfo` | Red Hat:cloudforms_managementengine:5.10::el7 | All versions | 0:20.3.8.9-2.el7at | | `nginx` | Red Hat:cloudforms_managementengine:5.10::el7 | All versions | 1:1.14.1-1.el7at | | `nginx-all-modules` | Red Hat:cloudforms_managementengine:5.10::el7 | All versions | 1:1.14.1-1.el7at | | `nginx-debuginfo` | Red Hat:cloudforms_managementengine:5.10::el7 | All versions | 1:1.14.1-1.el7at | | `nginx-filesystem` | Red Hat:cloudforms_managementengine:5.10::el7 | All versions | 1:1.14.1-1.el7at | | `nginx-mod-http-geoip` | Red Hat:cloudforms_managementengine:5.10::el7 | All versions | 1:1.14.1-1.el7at | | `nginx-mod-http-image-filter` | Red Hat:cloudforms_managementengine:5.10::el7 | All versions | 1:1.14.1-1.el7at | | `nginx-mod-http-perl` | Red Hat:cloudforms_managementengine:5.10::el7 | All versions | 1:1.14.1-1.el7at | | `nginx-mod-http-xslt-filter` | Red Hat:cloudforms_managementengine:5.10::el7 | All versions | 1:1.14.1-1.el7at | | `nginx-mod-mail` | Red Hat:cloudforms_managementengine:5.10::el7 | All versions | 1:1.14.1-1.el7at | | `nginx-mod-stream` | Red Hat:cloudforms_managementengine:5.10::el7 | All versions | 1:1.14.1-1.el7at | | `rabbitmq-server` | Red Hat:cloudforms_managementengine:5.10::el7 | All versions | 0:3.7.4-2.el7at | | `erlang` | Red Hat:openstack:10::el7 | All versions | 0:18.3.4.7-1.el7ost | | `erlang-asn1` | Red Hat:openstack:10::el7 | All versions | 0:18.3.4.7-1.el7ost | | `erlang-compiler` | Red Hat:openstack:10::el7 | All versions | 0:18.3.4.7-1.el7ost | | `erlang-cosEvent` | Red Hat:openstack:10::el7 | All versions | 0:18.3.4.7-1.el7ost | | `erlang-cosEventDomain` | Red Hat:openstack:10::el7 | All versions | 0:18.3.4.7-1.el7ost | | `erlang-cosFileTransfer` | Red Hat:openstack:10::el7 | All versions | 0:18.3.4.7-1.el7ost | | `erlang-cosNotification` | Red Hat:openstack:10::el7 | All versions | 0:18.3.4.7-1.el7ost | | `erlang-cosProperty` | Red Hat:openstack:10::el7 | All versions | 0:18.3.4.7-1.el7ost | | `erlang-cosTime` | Red Hat:openstack:10::el7 | All versions | 0:18.3.4.7-1.el7ost | | `erlang-cosTransactions` | Red Hat:openstack:10::el7 | All versions | 0:18.3.4.7-1.el7ost | | `erlang-crypto` | Red Hat:openstack:10::el7 | All versions | 0:18.3.4.7-1.el7ost | | `erlang-debuginfo` | Red Hat:openstack:10::el7 | All versions | 0:18.3.4.7-1.el7ost | Products: Debian Debian Linux, Erlang Erlang\/Otp. ## How do I fix CVE-2017-1000385? Apply the vendor's patch. ## Is CVE-2017-1000385 being exploited? It is not confirmed as exploited in the wild, but public exploit code for CVE-2017-1000385 exists. Public exploit code: - Scanner for Bleichenbacher Oracle in RSA PKCS #1 v1.5 (metasploit) ## Other vulnerabilities in Debian Debian Linux - [CVE-2015-3306](https://insights.sbomify.com/CVE-2015-3306/): ProFTPD Improper Access Control (critical 10.0, exploited in the wild) - [CVE-2025-49113](https://insights.sbomify.com/CVE-2025-49113/): RoundCube Webmail Deserialization of Untrusted Data (critical 9.9, exploited in the wild) - [CVE-2026-24061](https://insights.sbomify.com/CVE-2026-24061/): GNU InetUtils Argument Injection (critical 9.8, exploited in the wild) - [CVE-2025-39682](https://insights.sbomify.com/CVE-2025-39682/): Linux Kernel Improper Check for Unusual or Exceptional Conditions (critical 9.8, exploited in the wild) - [CVE-2024-9680](https://insights.sbomify.com/CVE-2024-9680/): Mozilla Firefox Use-After-Free (critical 9.8, exploited in the wild) ## Fix prompt for AI coding agents ```text Check this codebase for CVE-2017-1000385 and fix it if it is affected. What it is: CVE-2017-1000385 is a medium-severity vulnerability in Debian Debian Linux, published on 12 Dec 2017. An attacker can exploit it over the internet without logging in, with no action from the victim. Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2017-1000385 exists. 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-2017-1000385/ (Markdown: https://insights.sbomify.com/CVE-2017-1000385/index.md) ``` ## Sources - CVE record: https://www.cve.org/CVERecord?id=CVE-2017-1000385 - NVD: https://nvd.nist.gov/vuln/detail/CVE-2017-1000385 - OSV: https://osv.dev/vulnerability/CVE-2017-1000385 --- From sbomify Insights: https://insights.sbomify.com/CVE-2017-1000385/ Summaries are generated and may contain mistakes; the official description above is the record.