# CVE-2022-27239: Memory corruption in n/a > Local attackers can gain root privileges via a stack-based buffer overflow in the mount.cifs utility when parsing command-line arguments. - **Severity:** High 7.8 (`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`) - **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:** 27 Apr 2022 - **Updated:** 3 Aug 2024 - **Also known as:** ALPINE-CVE-2022-27239, AZL-9587, DEBIAN-CVE-2022-27239, GHSA-mhc8-vv44-hh59, RHBA-2023:3052, SUSE-SU-2022:1427-1, SUSE-SU-2022:1428-1, SUSE-SU-2022:1429-1, SUSE-SU-2022:1430-1, SUSE-SU-2022:14950-1, SUSE-SU-2022:14951-1, SUSE-SU-2022:2378-1, UBUNTU-CVE-2022-27239, openSUSE-SU-2024:12087-1 ## What is CVE-2022-27239? CVE-2022-27239 is a high-severity memory corruption vulnerability in Debian Debian Linux, published on 27 Apr 2022. It can only be exploited from the same machine or local network, with no action from the victim. ### Official description In cifs-utils through 6.14, a stack-based buffer overflow when parsing the mount.cifs ip= command-line argument could lead to local attackers gaining root privileges. Weakness: CWE-787 (Out-of-bounds Write) ## Which versions are affected by CVE-2022-27239? It affects 19 products. | Package | Ecosystem | Affected | Fixed in | | --- | --- | --- | --- | | `cifs-utils` | Red Hat:enterprise_linux:8::baseos | All versions | 0:7.0-1.el8 | | `cifs-utils-debuginfo` | Red Hat:enterprise_linux:8::baseos | All versions | 0:7.0-1.el8 | | `cifs-utils-debugsource` | Red Hat:enterprise_linux:8::baseos | All versions | 0:7.0-1.el8 | | `pam_cifscreds` | Red Hat:enterprise_linux:8::baseos | All versions | 0:7.0-1.el8 | | `pam_cifscreds-debuginfo` | Red Hat:enterprise_linux:8::baseos | All versions | 0:7.0-1.el8 | | `cifs-utils-debuginfo` | Red Hat:enterprise_linux:8::crb | All versions | 0:7.0-1.el8 | | `cifs-utils-debugsource` | Red Hat:enterprise_linux:8::crb | All versions | 0:7.0-1.el8 | | `cifs-utils-devel` | Red Hat:enterprise_linux:8::crb | All versions | 0:7.0-1.el8 | | `pam_cifscreds-debuginfo` | Red Hat:enterprise_linux:8::crb | All versions | 0:7.0-1.el8 | | `cifs-utils` | SUSE:Enterprise Storage 6 | All versions | 6.9-150100.5.15.1 | | `cifs-utils` | SUSE:Enterprise Storage 7 | All versions | 6.9-150100.5.15.1 | | `cifs-utils` | SUSE:HPE Helion OpenStack 8 | All versions | 6.9-9.18.1 | | `cifs-utils` | SUSE:Linux Enterprise High Performance Computing 15 SP1-ESPOS | All versions | 6.9-150100.5.15.1 | | `cifs-utils` | SUSE:Linux Enterprise High Performance Computing 15 SP1-LTSS | All versions | 6.9-150100.5.15.1 | | `cifs-utils` | SUSE:Linux Enterprise High Performance Computing 15 SP2-ESPOS | All versions | 6.9-150100.5.15.1 | | `cifs-utils` | SUSE:Linux Enterprise High Performance Computing 15 SP2-LTSS | All versions | 6.9-150100.5.15.1 | | `cifs-utils` | SUSE:Linux Enterprise High Performance Computing 15-ESPOS | All versions | 6.9-150000.3.17.1 | | `cifs-utils` | SUSE:Linux Enterprise High Performance Computing 15-LTSS | All versions | 6.9-150000.3.17.1 | | `cifs-utils` | SUSE:Linux Enterprise Micro 5.2 | All versions | 6.9-150100.5.15.1 | | `cifs-utils` | SUSE:Linux Enterprise Module for Basesystem 15 SP3 | All versions | 6.9-150100.5.15.1 | | `cifs-utils` | SUSE:Linux Enterprise Module for Basesystem 15 SP4 | All versions | 6.15-150400.3.6.1 | | `cifs-utils` | SUSE:Linux Enterprise Point of Sale 11 SP3 | All versions | 5.1-0.14.3.1 | | `cifs-utils` | SUSE:Linux Enterprise Real Time 15 SP2 | All versions | 6.9-150100.5.15.1 | | `cifs-utils` | SUSE:Linux Enterprise Server 11 SP4-LTSS | All versions | 5.1-0.16.3.1 | | `cifs-utils` | SUSE:Linux Enterprise Server 12 SP2-BCL | All versions | 6.9-9.18.1 | | `cifs-utils` | SUSE:Linux Enterprise Server 12 SP3-BCL | All versions | 6.9-9.18.1 | | `cifs-utils` | SUSE:Linux Enterprise Server 12 SP3-LTSS | All versions | 6.9-9.18.1 | | `cifs-utils` | SUSE:Linux Enterprise Server 12 SP4-LTSS | All versions | 6.9-13.20.1 | | `cifs-utils` | SUSE:Linux Enterprise Server 12 SP5 | All versions | 6.9-13.20.1 | | `cifs-utils` | SUSE:Linux Enterprise Server 15 SP1-BCL | All versions | 6.9-150100.5.15.1 | | `cifs-utils` | SUSE:Linux Enterprise Server 15 SP1-LTSS | All versions | 6.9-150100.5.15.1 | | `cifs-utils` | SUSE:Linux Enterprise Server 15 SP2-BCL | All versions | 6.9-150100.5.15.1 | | `cifs-utils` | SUSE:Linux Enterprise Server 15 SP2-LTSS | All versions | 6.9-150100.5.15.1 | | `cifs-utils` | SUSE:Linux Enterprise Server 15-LTSS | All versions | 6.9-150000.3.17.1 | | `cifs-utils` | SUSE:Linux Enterprise Server for SAP Applications 12 SP3 | All versions | 6.9-9.18.1 | | `cifs-utils` | SUSE:Linux Enterprise Server for SAP Applications 12 SP4 | All versions | 6.9-13.20.1 | | `cifs-utils` | SUSE:Linux Enterprise Server for SAP Applications 12 SP5 | All versions | 6.9-13.20.1 | | `cifs-utils` | SUSE:Linux Enterprise Server for SAP Applications 15 | All versions | 6.9-150000.3.17.1 | | `cifs-utils` | SUSE:Linux Enterprise Server for SAP Applications 15 SP1 | All versions | 6.9-150100.5.15.1 | | `cifs-utils` | SUSE:Linux Enterprise Server for SAP Applications 15 SP2 | All versions | 6.9-150100.5.15.1 | Products: Debian Debian Linux, Fedoraproject Fedora, Hp Helion Openstack, Samba Cifs-Utils, Suse Caas Platform, Suse Enterprise Storage, Suse Linux Enterprise Desktop, Suse Linux Enterprise High Performance Computing, Suse Linux Enterprise Micro, Suse Linux Enterprise Point of Service, Suse Linux Enterprise Real Time, Suse Linux Enterprise Server, Suse Linux Enterprise Software Development Kit, Suse Linux Enterprise Storage, Suse Manager Proxy, Suse Manager Retail Branch Server, Suse Manager Server, Suse Openstack Cloud, Suse Openstack Cloud Crowbar. ## How do I fix CVE-2022-27239? Apply the vendor's patch. ## Is CVE-2022-27239 being exploited? There is no known exploitation of CVE-2022-27239 in the wild and no public exploit code. ## 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-2022-27239 and fix it if it is affected. What it is: CVE-2022-27239 is a high-severity memory corruption vulnerability in Debian Debian Linux, published on 27 Apr 2022. 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-2022-27239 in the wild and no public exploit code. 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-2022-27239/ (Markdown: https://insights.sbomify.com/CVE-2022-27239/index.md) ``` ## Sources - CVE record: https://www.cve.org/CVERecord?id=CVE-2022-27239 - NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-27239 - OSV: https://osv.dev/vulnerability/CVE-2022-27239 --- From sbomify Insights: https://insights.sbomify.com/CVE-2022-27239/ Summaries are generated and may contain mistakes; the official description above is the record.