# CVE-2018-14526: Information disclosure in n/a > An attacker within range can exploit a decryption oracle in wpa_supplicant to recover sensitive information from EAPOL-Key messages. - **Severity:** Medium 6.5 (`CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N`) - **Exploited in the wild:** Not known - **Login needed:** Not needed - **Attackable:** Local or same network only - **Victim action needed:** Not needed - **Fix available:** Yes - **Published:** 8 Aug 2018 - **Updated:** 5 Aug 2024 - **Also known as:** ALPINE-CVE-2018-14526, DEBIAN-CVE-2018-14526, DLA-1462-1, GHSA-p89p-gprq-frv8, MGASA-2018-0348, RHSA-2018:3107, SUSE-SU-2018:3480-1, SUSE-SU-2019:1088-1, UBUNTU-CVE-2018-14526, USN-3745-1 ## What is CVE-2018-14526? CVE-2018-14526 is a medium-severity vulnerability in Canonical Ubuntu Linux, published on 8 Aug 2018. It can only be exploited from the same machine or local network, with no action from the victim. ### Official description An issue was discovered in rsn_supp/wpa.c in wpa_supplicant 2.0 through 2.6. Under certain conditions, the integrity of EAPOL-Key messages is not checked, leading to a decryption oracle. An attacker within range of the Access Point and client can abuse the vulnerability to recover sensitive information. Weakness: CWE-924 (Improper Enforcement of Message Integrity During Transmission in a Communication Channel) ## Which versions are affected by CVE-2018-14526? It affects 3 products. | Package | Ecosystem | Affected | Fixed in | | --- | --- | --- | --- | | `wpa_supplicant` | Red Hat:enterprise_linux:7::client | All versions | 1:2.6-12.el7 | | `wpa_supplicant-debuginfo` | Red Hat:enterprise_linux:7::client | All versions | 1:2.6-12.el7 | | `wpa_supplicant` | Red Hat:enterprise_linux:7::computenode | All versions | 1:2.6-12.el7 | | `wpa_supplicant-debuginfo` | Red Hat:enterprise_linux:7::computenode | All versions | 1:2.6-12.el7 | | `wpa_supplicant` | Red Hat:enterprise_linux:7::server | All versions | 1:2.6-12.el7 | | `wpa_supplicant-debuginfo` | Red Hat:enterprise_linux:7::server | All versions | 1:2.6-12.el7 | | `wpa_supplicant` | Red Hat:enterprise_linux:7::workstation | All versions | 1:2.6-12.el7 | | `wpa_supplicant-debuginfo` | Red Hat:enterprise_linux:7::workstation | All versions | 1:2.6-12.el7 | | `wpa_supplicant` | SUSE:Enterprise Storage 4 | All versions | 2.6-15.10.1 | | `wpa_supplicant` | SUSE:Linux Enterprise Desktop 12 SP3 | All versions | 2.6-15.10.1 | | `wpa_supplicant` | SUSE:Linux Enterprise Desktop 12 SP4 | All versions | 2.6-15.10.1 | | `wpa_supplicant` | SUSE:Linux Enterprise Module for Basesystem 15 | All versions | 2.6-4.11.1 | | `wpa_supplicant` | SUSE:Linux Enterprise Server 12 SP1-LTSS | All versions | 2.6-15.10.1 | | `wpa_supplicant` | SUSE:Linux Enterprise Server 12 SP2-BCL | All versions | 2.6-15.10.1 | | `wpa_supplicant` | SUSE:Linux Enterprise Server 12 SP2-LTSS | All versions | 2.6-15.10.1 | | `wpa_supplicant` | SUSE:Linux Enterprise Server 12 SP3 | All versions | 2.6-15.10.1 | | `wpa_supplicant` | SUSE:Linux Enterprise Server 12 SP4 | All versions | 2.6-15.10.1 | | `wpa_supplicant` | SUSE:Linux Enterprise Server 12-LTSS | All versions | 2.6-15.10.1 | | `wpa_supplicant` | SUSE:Linux Enterprise Server for SAP Applications 12 SP2 | All versions | 2.6-15.10.1 | | `wpa_supplicant` | SUSE:Linux Enterprise Server for SAP Applications 12 SP3 | All versions | 2.6-15.10.1 | | `wpa_supplicant` | SUSE:Linux Enterprise Server for SAP Applications 12 SP4 | All versions | 2.6-15.10.1 | | `wpa_supplicant` | SUSE:OpenStack Cloud 7 | All versions | 2.6-15.10.1 | Products: Canonical Ubuntu Linux, Debian Debian Linux, W1.fi Wpa Supplicant. ## How do I fix CVE-2018-14526? Apply the vendor's patch. ## Is CVE-2018-14526 being exploited? There is no known exploitation of CVE-2018-14526 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-2018-14526 and fix it if it is affected. What it is: CVE-2018-14526 is a medium-severity vulnerability in Canonical Ubuntu Linux, published on 8 Aug 2018. 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-2018-14526 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-2018-14526/ (Markdown: https://insights.sbomify.com/CVE-2018-14526/index.md) ``` ## Sources - CVE record: https://www.cve.org/CVERecord?id=CVE-2018-14526 - NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-14526 - OSV: https://osv.dev/vulnerability/CVE-2018-14526 --- From sbomify Insights: https://insights.sbomify.com/CVE-2018-14526/ Summaries are generated and may contain mistakes; the official description above is the record.