# CVE-2013-7336: Null dereference in n/a > Local users can crash libvirtd via a NULL pointer dereference during SPICE migration, causing denial of service. - **Severity:** Low 1.9 (`AV:L/AC:M/Au:N/C:N/I:N/A:P`) - **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:** 7 May 2014 - **Updated:** 6 Aug 2024 - **Also known as:** DEBIAN-CVE-2013-7336, GHSA-xjqc-jjx2-53jr, RHBA-2013:1581 ## What is CVE-2013-7336? CVE-2013-7336 is a low-severity vulnerability in Opensuse Opensuse, published on 7 May 2014. It can only be exploited from the same machine or local network, with no action from the victim. ### Official description The qemuMigrationWaitForSpice function in qemu/qemu_migration.c in libvirt before 1.1.3 does not properly enter a monitor when performing seamless SPICE migration, which allows local users to cause a denial of service (NULL pointer dereference and libvirtd crash) by causing domblkstat to be called at the same time as the qemuMonitorGetSpiceMigrationStatus function. ## Which versions are affected by CVE-2013-7336? It affects 2 products. | Package | Ecosystem | Affected | Fixed in | | --- | --- | --- | --- | | `libvirt` | Red Hat:enterprise_linux:6::client | All versions | 0:0.10.2-29.el6 | | `libvirt-client` | Red Hat:enterprise_linux:6::client | All versions | 0:0.10.2-29.el6 | | `libvirt-debuginfo` | Red Hat:enterprise_linux:6::client | All versions | 0:0.10.2-29.el6 | | `libvirt-devel` | Red Hat:enterprise_linux:6::client | All versions | 0:0.10.2-29.el6 | | `libvirt-lock-sanlock` | Red Hat:enterprise_linux:6::client | All versions | 0:0.10.2-29.el6 | | `libvirt-python` | Red Hat:enterprise_linux:6::client | All versions | 0:0.10.2-29.el6 | | `libvirt` | Red Hat:enterprise_linux:6::computenode | All versions | 0:0.10.2-29.el6 | | `libvirt-client` | Red Hat:enterprise_linux:6::computenode | All versions | 0:0.10.2-29.el6 | | `libvirt-debuginfo` | Red Hat:enterprise_linux:6::computenode | All versions | 0:0.10.2-29.el6 | | `libvirt-devel` | Red Hat:enterprise_linux:6::computenode | All versions | 0:0.10.2-29.el6 | | `libvirt-lock-sanlock` | Red Hat:enterprise_linux:6::computenode | All versions | 0:0.10.2-29.el6 | | `libvirt-python` | Red Hat:enterprise_linux:6::computenode | All versions | 0:0.10.2-29.el6 | | `libvirt` | Red Hat:enterprise_linux:6::server | All versions | 0:0.10.2-29.el6 | | `libvirt-client` | Red Hat:enterprise_linux:6::server | All versions | 0:0.10.2-29.el6 | | `libvirt-debuginfo` | Red Hat:enterprise_linux:6::server | All versions | 0:0.10.2-29.el6 | | `libvirt-devel` | Red Hat:enterprise_linux:6::server | All versions | 0:0.10.2-29.el6 | | `libvirt-lock-sanlock` | Red Hat:enterprise_linux:6::server | All versions | 0:0.10.2-29.el6 | | `libvirt-python` | Red Hat:enterprise_linux:6::server | All versions | 0:0.10.2-29.el6 | | `libvirt` | Red Hat:enterprise_linux:6::workstation | All versions | 0:0.10.2-29.el6 | | `libvirt-client` | Red Hat:enterprise_linux:6::workstation | All versions | 0:0.10.2-29.el6 | | `libvirt-debuginfo` | Red Hat:enterprise_linux:6::workstation | All versions | 0:0.10.2-29.el6 | | `libvirt-devel` | Red Hat:enterprise_linux:6::workstation | All versions | 0:0.10.2-29.el6 | | `libvirt-lock-sanlock` | Red Hat:enterprise_linux:6::workstation | All versions | 0:0.10.2-29.el6 | | `libvirt-python` | Red Hat:enterprise_linux:6::workstation | All versions | 0:0.10.2-29.el6 | | `libvirt-lock-sanlock` | Red Hat:storage:3:server:el6 | All versions | 0:0.10.2-29.el6 | Products: Opensuse Opensuse, Redhat Libvirt. ## How do I fix CVE-2013-7336? Upgrade to a fixed version. ## Is CVE-2013-7336 being exploited? There is no known exploitation of CVE-2013-7336 in the wild and no public exploit code. ## Other vulnerabilities in Opensuse Opensuse - [CVE-2015-5957](https://insights.sbomify.com/CVE-2015-5957/): Memory corruption in n/a (critical 10.0) - [CVE-2015-0491](https://insights.sbomify.com/CVE-2015-0491/): Memory corruption in n/a (critical 10.0) - [CVE-2008-2388](https://insights.sbomify.com/CVE-2008-2388/): Integer overflow in n/a (critical 10.0) - [CVE-2010-1866](https://insights.sbomify.com/CVE-2010-1866/): Integer overflow in n/a (critical 9.8) - [CVE-2015-0492](https://insights.sbomify.com/CVE-2015-0492/): Other in n/a (critical 9.3) ## Fix prompt for AI coding agents ```text Check this codebase for CVE-2013-7336 and fix it if it is affected. What it is: CVE-2013-7336 is a low-severity vulnerability in Opensuse Opensuse, published on 7 May 2014. 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-2013-7336 in the wild and no public exploit code. Affected product: Opensuse Opensuse. 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-2013-7336/ (Markdown: https://insights.sbomify.com/CVE-2013-7336/index.md) ``` ## Sources - CVE record: https://www.cve.org/CVERecord?id=CVE-2013-7336 - NVD: https://nvd.nist.gov/vuln/detail/CVE-2013-7336 - OSV: https://osv.dev/vulnerability/CVE-2013-7336 --- From sbomify Insights: https://insights.sbomify.com/CVE-2013-7336/ Summaries are generated and may contain mistakes; the official description above is the record.