An integer overflow and buffer overflow issues were found in the ACPI Error Record Serialization Table (ERST) device of QEMU in the read_erst_record() and write_erst_record() functions. Both issues may allow the guest to overrun the host buffer allocated for the ERST memory device. A malicious guest could use these flaws to crash the QEMU process on the host.

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

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2023:2162 advisory.

    Kernel-based Virtual Machine (KVM) is a full virtualization solution for Linux on a variety of     architectures. The qemu-kvm packages provide the user-space component for running virtual machines that     use KVM.

    The following packages have been upgraded to a later upstream version: qemu-kvm (7.2.0). (BZ#2111769,     BZ#2135806)

    Security Fix(es):

    * QEMU: VNC: integer underflow in vnc_client_cut_text_ext leads to CPU exhaustion (CVE-2022-3165)

    * QEMU: ACPI ERST: memory corruption issues in read_erst_record and write_erst_record (CVE-2022-4172)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

    Additional Changes:

    For detailed information on changes in this release, see the Red Hat Enterprise Linux 9.2 Release Notes     linked from the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux 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 remote CentOS Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the qemu-kvm-8.0.0-8.el9 build changelog.

  - A DMA reentrancy issue was found in the USB EHCI controller emulation of QEMU. EHCI does not verify if the     Buffer Pointer overlaps with its MMIO region when it transfers the USB packets. Crafted content may be     written to the controller's registers and trigger undesirable actions (such as reset) while the device is     still transferring packets. This can ultimately lead to a use-after-free issue. A malicious guest could     use this flaw to crash the QEMU process on the host, resulting in a denial of service condition, or     potentially execute arbitrary code within the context of the QEMU process on the host. This flaw affects     QEMU versions before 7.0.0. (CVE-2021-3750)

  - memory corruption issues in read_erst_record and write_erst_record [rhel-9]) (CVE-2022-4172)

  - DMA reentrancy issue (incomplete fix for CVE-2021-3750) [rhel-9]) (CVE-2023-2680)

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

The remote Ubuntu 16.04 ESM / 18.04 ESM / 20.04 LTS / 22.04 LTS / 23.04 host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-6167-1 advisory.

    It was discovered that QEMU did not properly manage the guest drivers when shared buffers are not     allocated. A malicious guest driver could use this issue to cause QEMU to crash, resulting in a denial of     service, or possibly execute arbitrary code. This issue only affected Ubuntu 20.04 LTS, Ubuntu 22.04 LTS     and Ubuntu 22.10. (CVE-2022-1050)

    It was discovered that QEMU did not properly check the size of the structure pointed to by the guest     physical address pqxl. A malicious guest attacker could use this issue to cause QEMU to crash, resulting     in a denial of service. This issue only affected Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, Ubuntu 18.04 LTS,     Ubuntu 20.04 LTS, Ubuntu 22.04 LTS and Ubuntu 22.10. (CVE-2022-4144)

    It was discovered that QEMU did not properly manage memory in the ACPI Error Record Serialization Table     (ERST) device. A malicious guest attacker could use this issue to cause QEMU to crash, resulting in a     denial of service. This issue only affected Ubuntu 22.10. (CVE-2022-4172)

    It was discovered that QEMU did not properly manage memory when DMA memory writes happen repeatedly in the     lsi53c895a device. A malicious guest attacker could use this issue to cause QEMU to crash, resulting in a     denial of service. (CVE-2023-0330)

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 remote Oracle Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2023-12065 advisory.

    - hw/display/ati_2d: Fix buffer overflow in ati_2d_blt (CVE-2021-3638) (Philippe Mathieu-Daude)  [Orabug:
    33930374]  {CVE-2021-3638}
    - Document CVE-2022-1050 and CVE-2022-3165 (Mark Kanda)  [Orabug: 34132133] [Orabug: 34713999]     {CVE-2022-1050} {CVE-2022-3165}
    - hw/acpi/erst.c: Fix memory handling issues (Christian A. Ehrhardt)  [Orabug: 34779472]  {CVE-2022-4172}

Tenable has extracted the preceding description block directly from the Oracle Linux 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 remote Oracle Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2023-2162 advisory.

    - Resolves: bz#2149108       (CVE-2022-4172 qemu-kvm: QEMU: ACPI ERST: memory corruption issues in read_erst_record and     write_erst_record [rhel-9])
    - Resolves: bz#1951522       (CVE-2021-3507 qemu-kvm: QEMU: fdc: heap buffer overflow in DMA read data transfers [rhel-9.0])
    - Resolves: bz#2046201       (CVE-2022-0358 qemu-kvm: QEMU: virtiofsd: potential privilege escalation via CVE-2018-13405 [rhel-9.0])

Tenable has extracted the preceding description block directly from the Oracle Linux 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 remote Oracle Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2023-12108 advisory.

    - security: fix SELinux label generation logic (Daniel P. Berrange) [Orabug: 34773029] {CVE-2021-3631}
    - hw/display/ati_2d: Fix buffer overflow in ati_2d_blt (CVE-2021-3638) (Philippe Mathieu-Daude) [Orabug:
    33930374] {CVE-2021-3638}
    - Document CVE-2022-3165 as not applicable (Mark Kanda) [Orabug: 34713999] {CVE-2022-3165}
    - Document CVE-2022-1050 as not applicable (Mark Kanda) [Orabug: 34132133] {CVE-2022-1050}
    - hw/acpi/erst.c: Fix memory handling issues (Christian A. Ehrhardt) [Orabug: 34779472] {CVE-2022-4172}

Tenable has extracted the preceding description block directly from the Oracle Linux 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 remote Oracle Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2023-12195 advisory.

    - hw/pvrdma: Protect against buggy or malicious guest driver (Yuval Shaia) [Orabug: 35064352]     {CVE-2022-1050}
    - hw/display/qxl: Avoid buffer overrun in qxl_phys2virt (CVE-2022-4144) (Philippe Mathieu-Daude) [Orabug:
    35060182] {CVE-2022-4144}
    - ui/vnc-clipboard: fix integer underflow in vnc_client_cut_text_ext (Mauro Matteo Cascella) [Orabug:
    35060115] {CVE-2022-3165}
    - hw/acpi/erst.c: Fix memory handling issues (Christian A. Ehrhardt) [Orabug: 34779541] {CVE-2022-4172}

Tenable has extracted the preceding description block directly from the Oracle Linux 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 remote host is affected by the vulnerability described in GLSA-202408-18 (QEMU: Multiple Vulnerabilities)

    Multiple vulnerabilities have been discovered in QEMU. Please review the CVE identifiers referenced below     for details.

Tenable has extracted the preceding description block directly from the Gentoo Linux 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 remote AlmaLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2023:2162 advisory.

  - An integer underflow issue was found in the QEMU VNC server while processing ClientCutText messages in the     extended format. A malicious client could use this flaw to make QEMU unresponsive by sending a specially     crafted payload message, resulting in a denial of service. (CVE-2022-3165)

  - An integer overflow and buffer overflow issues were found in the ACPI Error Record Serialization Table     (ERST) device of QEMU in the read_erst_record() and write_erst_record() functions. Both issues may allow     the guest to overrun the host buffer allocated for the ERST memory device. A malicious guest could use     these flaws to crash the QEMU process on the host. (CVE-2022-4172)

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

ID	Name	Product	Family	Published	Updated	Severity
168861	QEMU < 7.2.0 Overflow (CVE-2022-4172)	Nessus	Windows	12/16/2022	9/28/2023	medium
175443	RHEL 9 : qemu-kvm (RHSA-2023:2162)	Nessus	Red Hat Local Security Checks	5/12/2023	11/7/2024	medium
191424	CentOS 9 : qemu-kvm-8.0.0-8.el9	Nessus	CentOS Local Security Checks	2/29/2024	4/26/2024	high
177423	Ubuntu 16.04 ESM / 18.04 ESM / 20.04 LTS / 22.04 LTS / 23.04 : QEMU vulnerabilities (USN-6167-1)	Nessus	Ubuntu Local Security Checks	6/19/2023	8/28/2024	high
170462	Oracle Linux 7 : qemu (ELSA-2023-12065)	Nessus	Oracle Linux Local Security Checks	1/24/2023	11/1/2024	high
175701	Oracle Linux 9 : qemu-kvm (ELSA-2023-2162)	Nessus	Oracle Linux Local Security Checks	5/15/2023	11/1/2024	medium
171222	Oracle Linux 8 : virt:kvm_utils (ELSA-2023-12108)	Nessus	Oracle Linux Local Security Checks	2/8/2023	11/1/2024	high
172674	Oracle Linux 8 : virt:kvm_utils2 (ELSA-2023-12195)	Nessus	Oracle Linux Local Security Checks	3/18/2023	11/1/2024	high
205306	GLSA-202408-18 : QEMU: Multiple Vulnerabilities	Nessus	Gentoo Local Security Checks	8/9/2024	8/9/2024	high
175625	AlmaLinux 9 : qemu-kvm (ALSA-2023:2162)	Nessus	Alma Linux Local Security Checks	5/14/2023	5/14/2023	medium

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