A flaw was found in the virtio-net device in QEMU. When enabling the RSS feature on the virtio-net network card, the indirections_table data within RSS becomes controllable. Setting excessively large values may cause an index out-of-bounds issue, potentially resulting in heap overflow access. This flaw allows a privileged user in the guest to crash the QEMU process on the host.

The remote Ubuntu 22.04 LTS / 24.04 LTS / 25.04 host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-7744-1 advisory.

    It was discovered that QEMU incorrectly handled certain virtio devices. A privileged guest attacker could     use this issue to cause QEMU to crash, leading to a denial of service, or possibly execute arbitrary code.
    This issue only affected Ubuntu 22.04 LTS and Ubuntu 24.04 LTS. (CVE-2024-3446)

    It was discovered that QEMU incorrectly handled SDHCI device emulation. A guest attacker could possibly     use this issue to cause QEMU to crash, leading to a denial of service. This issue only affected Ubuntu     22.04 LTS and Ubuntu 24.04 LTS. (CVE-2024-3447)

    It was discovered that QEMU incorrectly handled calculating the checksum of a short-sized fragmented     packet. A guest attacker could possibly use this issue to cause QEMU to crash, leading to a denial of     service. This issue only affected Ubuntu 24.04 LTS. (CVE-2024-3567)

    It was discovered that the QEMU qemu-img utility incorrectly handled certain crafted image files. An     attacker could use this issue to cause QEMU to consume resources, leading to a denial of service, or     possibly read and write to an existing external file. This issue only affected Ubuntu 22.04 LTS and Ubuntu     24.04 LTS. (CVE-2024-4467)

    It was discovered that QEMU incorrectly handled the RSS feature on virtio-net devices. A privileged guest     attacker could possibly use this issue to cause QEMU to crash, leading to a denial of service. This issue     only affected Ubuntu 22.04 LTS and Ubuntu 24.04 LTS. (CVE-2024-6505)

    It was discovered that QEMU incorrectly handled the NBD server. An attacker could use this issue to cause     QEMU to consume resources, leading to a denial of service. This issue only affected Ubuntu 22.04 LTS and     Ubuntu 24.04 LTS. (CVE-2024-7409)

    It was discovered that QEMU incorrectly handled certain USB devices. A guest attacker could possibly use     this issue to cause QEMU to crash, leading to a denial of service. This issue only affected Ubuntu 22.04     LTS and Ubuntu 24.04 LTS. (CVE-2024-8354)

    It was discovered that the QEMU package incorrectly set up a binfmt_misc registration with the C     (Credential) flag. A local attacker could use this with a suid/sgid binary to escalate privileges. This     update will no longer run foreign-architecture binaries with suid/sgid with elevated privileges.

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The version of qemu installed on the remote Azure Linux 3.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2024-6505 advisory.

  - A flaw was found in the virtio-net device in QEMU. When enabling the RSS feature on the virtio-net network     card, the indirections_table data within RSS becomes controllable. Setting excessively large values may     cause an index out-of-bounds issue, potentially resulting in heap overflow access. This flaw allows a     privileged user in the guest to crash the QEMU process on the host. (CVE-2024-6505)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The version of qemu installed on the remote CBL Mariner 2.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2024-6505 advisory.

  - A flaw was found in the virtio-net device in QEMU. When enabling the RSS feature on the virtio-net network     card, the indirections_table data within RSS becomes controllable. Setting excessively large values may     cause an index out-of-bounds issue, potentially resulting in heap overflow access. This flaw allows a     privileged user in the guest to crash the QEMU process on the host. (CVE-2024-6505)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - A flaw was found in the virtio-net device in QEMU. When enabling the RSS feature on the virtio-net network     card, the indirections_table data within RSS becomes controllable. Setting excessively large values may     cause an index out-of-bounds issue, potentially resulting in heap overflow access. This flaw allows a     privileged user in the guest to crash the QEMU process on the host. (CVE-2024-6505)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	Name	Product	Family	Severity
265091	Ubuntu 22.04 LTS / 24.04 LTS / 25.04 : QEMU vulnerabilities (USN-7744-1)	Nessus	Ubuntu Local Security Checks	medium
235436	Azure Linux 3.0 Security Update: qemu (CVE-2024-6505)	Nessus	Azure Linux Local Security Checks	medium
235188	CBL Mariner 2.0 Security Update: qemu (CVE-2024-6505)	Nessus	MarinerOS Local Security Checks	medium
231559	Linux Distros Unpatched Vulnerability : CVE-2024-6505	Nessus	Misc.	medium

Detections

Analytics

CVE-2024-6505

medium

Tenable Plugins

medium

medium

medium

medium