# CVE-2016-4455: Information disclosure in n/a > Local users can read sensitive information from subscription-manager cache directories due to weak file permissions. - **Severity:** Low 3.3 (`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N`) - **Exploited in the wild:** Not known - **Login needed:** Any signed-in user - **Attackable:** Local or same network only - **Victim action needed:** Not needed - **Fix available:** Yes - **Published:** 14 Apr 2017 - **Updated:** 6 Aug 2024 - **Also known as:** GHSA-q3jw-m6vv-gg29, RHSA-2016:2592, RHSA-2017:0698 ## What is CVE-2016-4455? CVE-2016-4455 is a low-severity vulnerability in Redhat Enterprise Linux Desktop, published on 14 Apr 2017. It can only be exploited from the same machine or local network, with no action from the victim. ### Official description The Subscription Manager package (aka subscription-manager) before 1.17.7-1 for Candlepin uses weak permissions (755) for subscription-manager cache directories, which allows local users to obtain sensitive information by reading files in the directories. Weakness: CWE-264 ## Which versions are affected by CVE-2016-4455? It affects 5 products. | Package | Ecosystem | Affected | Fixed in | | --- | --- | --- | --- | | `python-rhsm` | Red Hat:enterprise_linux:6::client | All versions | 0:1.18.6-1.el6 | | `python-rhsm-certificates` | Red Hat:enterprise_linux:6::client | All versions | 0:1.18.6-1.el6 | | `python-rhsm-debuginfo` | Red Hat:enterprise_linux:6::client | All versions | 0:1.18.6-1.el6 | | `subscription-manager` | Red Hat:enterprise_linux:6::client | All versions | 0:1.18.10-1.el6 | | `subscription-manager-debuginfo` | Red Hat:enterprise_linux:6::client | All versions | 0:1.18.10-1.el6 | | `subscription-manager-firstboot` | Red Hat:enterprise_linux:6::client | All versions | 0:1.18.10-1.el6 | | `subscription-manager-gui` | Red Hat:enterprise_linux:6::client | All versions | 0:1.18.10-1.el6 | | `subscription-manager-migration` | Red Hat:enterprise_linux:6::client | All versions | 0:1.18.10-1.el6 | | `subscription-manager-migration-data` | Red Hat:enterprise_linux:6::client | All versions | 0:2.0.34-1.el6 | | `subscription-manager-plugin-container` | Red Hat:enterprise_linux:6::client | All versions | 0:1.18.10-1.el6 | | `python-rhsm` | Red Hat:enterprise_linux:6::computenode | All versions | 0:1.18.6-1.el6 | | `python-rhsm-certificates` | Red Hat:enterprise_linux:6::computenode | All versions | 0:1.18.6-1.el6 | | `python-rhsm-debuginfo` | Red Hat:enterprise_linux:6::computenode | All versions | 0:1.18.6-1.el6 | | `subscription-manager` | Red Hat:enterprise_linux:6::computenode | All versions | 0:1.18.10-1.el6 | | `subscription-manager-debuginfo` | Red Hat:enterprise_linux:6::computenode | All versions | 0:1.18.10-1.el6 | | `subscription-manager-firstboot` | Red Hat:enterprise_linux:6::computenode | All versions | 0:1.18.10-1.el6 | | `subscription-manager-gui` | Red Hat:enterprise_linux:6::computenode | All versions | 0:1.18.10-1.el6 | | `subscription-manager-migration` | Red Hat:enterprise_linux:6::computenode | All versions | 0:1.18.10-1.el6 | | `subscription-manager-migration-data` | Red Hat:enterprise_linux:6::computenode | All versions | 0:2.0.34-1.el6 | | `subscription-manager-plugin-container` | Red Hat:enterprise_linux:6::computenode | All versions | 0:1.18.10-1.el6 | | `python-rhsm` | Red Hat:enterprise_linux:6::server | All versions | 0:1.18.6-1.el6 | | `python-rhsm-certificates` | Red Hat:enterprise_linux:6::server | All versions | 0:1.18.6-1.el6 | | `python-rhsm-debuginfo` | Red Hat:enterprise_linux:6::server | All versions | 0:1.18.6-1.el6 | | `subscription-manager` | Red Hat:enterprise_linux:6::server | All versions | 0:1.18.10-1.el6 | | `subscription-manager-debuginfo` | Red Hat:enterprise_linux:6::server | All versions | 0:1.18.10-1.el6 | | `subscription-manager-firstboot` | Red Hat:enterprise_linux:6::server | All versions | 0:1.18.10-1.el6 | | `subscription-manager-gui` | Red Hat:enterprise_linux:6::server | All versions | 0:1.18.10-1.el6 | | `subscription-manager-migration` | Red Hat:enterprise_linux:6::server | All versions | 0:1.18.10-1.el6 | | `subscription-manager-migration-data` | Red Hat:enterprise_linux:6::server | All versions | 0:2.0.34-1.el6 | | `subscription-manager-plugin-container` | Red Hat:enterprise_linux:6::server | All versions | 0:1.18.10-1.el6 | | `python-rhsm` | Red Hat:enterprise_linux:6::workstation | All versions | 0:1.18.6-1.el6 | | `python-rhsm-certificates` | Red Hat:enterprise_linux:6::workstation | All versions | 0:1.18.6-1.el6 | | `python-rhsm-debuginfo` | Red Hat:enterprise_linux:6::workstation | All versions | 0:1.18.6-1.el6 | | `subscription-manager` | Red Hat:enterprise_linux:6::workstation | All versions | 0:1.18.10-1.el6 | | `subscription-manager-debuginfo` | Red Hat:enterprise_linux:6::workstation | All versions | 0:1.18.10-1.el6 | | `subscription-manager-firstboot` | Red Hat:enterprise_linux:6::workstation | All versions | 0:1.18.10-1.el6 | | `subscription-manager-gui` | Red Hat:enterprise_linux:6::workstation | All versions | 0:1.18.10-1.el6 | | `subscription-manager-migration` | Red Hat:enterprise_linux:6::workstation | All versions | 0:1.18.10-1.el6 | | `subscription-manager-migration-data` | Red Hat:enterprise_linux:6::workstation | All versions | 0:2.0.34-1.el6 | | `subscription-manager-plugin-container` | Red Hat:enterprise_linux:6::workstation | All versions | 0:1.18.10-1.el6 | Products: Redhat Enterprise Linux Desktop, Redhat Enterprise Linux Hpc Node, Redhat Enterprise Linux Server, Redhat Enterprise Linux Workstation, Redhat Subscription-Manager. ## How do I fix CVE-2016-4455? Apply the vendor's patch. ## Is CVE-2016-4455 being exploited? There is no known exploitation of CVE-2016-4455 in the wild and no public exploit code. ## Other vulnerabilities in Redhat Enterprise Linux Desktop - [CVE-2016-5405](https://insights.sbomify.com/CVE-2016-5405/): Information disclosure in n/a (critical 9.8) - [CVE-2016-7050](https://insights.sbomify.com/CVE-2016-7050/): Deserialization in n/a (critical 9.8) - [CVE-2014-8241](https://insights.sbomify.com/CVE-2014-8241/): Null dereference in n/a (critical 9.8) - [CVE-2014-8567](https://insights.sbomify.com/CVE-2014-8567/): Denial of service in n/a (critical 9.4) - [CVE-2018-10897](https://insights.sbomify.com/CVE-2018-10897/): Path traversal in yum-utils: (high 8.8) ## Fix prompt for AI coding agents ```text Check this codebase for CVE-2016-4455 and fix it if it is affected. What it is: CVE-2016-4455 is a low-severity vulnerability in Redhat Enterprise Linux Desktop, published on 14 Apr 2017. It can only be exploited from the same machine or local network, with no action from the victim. Exploitation: There is no known exploitation of CVE-2016-4455 in the wild and no public exploit code. Affected product: Redhat Enterprise Linux Desktop. 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-2016-4455/ (Markdown: https://insights.sbomify.com/CVE-2016-4455/index.md) ``` ## Sources - CVE record: https://www.cve.org/CVERecord?id=CVE-2016-4455 - NVD: https://nvd.nist.gov/vuln/detail/CVE-2016-4455 - OSV: https://osv.dev/vulnerability/CVE-2016-4455 --- From sbomify Insights: https://insights.sbomify.com/CVE-2016-4455/ Summaries are generated and may contain mistakes; the official description above is the record.