In x86's APIC (Advanced Programmable Interrupt Controller) architecture, error conditions are reported in a status register. Furthermore, the OS can opt to receive an interrupt when a new error occurs. It is possible to configure the error interrupt with an illegal vector, which generates an error when an error interrupt is raised. This case causes Xen to recurse through vlapic_error(). The recursion itself is bounded; errors accumulate in the the status register and only generate an interrupt when a new status bit becomes set. However, the lock protecting this state in Xen will try to be taken recursively, and deadlock.

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

  - In x86's APIC (Advanced Programmable Interrupt Controller) architecture, error conditions are reported in     a status register. Furthermore, the OS can opt to receive an interrupt when a new error occurs. It is     possible to configure the error interrupt with an illegal vector, which generates an error when an error     interrupt is raised. This case causes Xen to recurse through vlapic_error(). The recursion itself is     bounded; errors accumulate in the the status register and only generate an interrupt when a new status bit     becomes set. However, the lock protecting this state in Xen will try to be taken recursively, and     deadlock. (CVE-2024-45817)

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

The remote Debian 12 host has packages installed that are affected by multiple vulnerabilities as referenced in the dsa-5836 advisory.

    - -------------------------------------------------------------------------     Debian Security Advisory DSA-5836-1                   security@debian.org     https://www.debian.org/security/                       Moritz Muehlenhoff     December 26, 2024                     https://www.debian.org/security/faq
    - -------------------------------------------------------------------------

    Package        : xen     CVE ID         : CVE-2023-28746 CVE-2023-46841 CVE-2023-46842 CVE-2024-2193                      CVE-2024-2201 CVE-2024-31142 CVE-2024-31143 CVE-2024-31145                      CVE-2024-31146 CVE-2024-45817 CVE-2024-45818 CVE-2024-45819

    Multiple vulnerabilities have been discovered in the Xen hypervisor,     which could result in privilege escalation, denial of service or     information leaks.

    For the stable distribution (bookworm), these problems have been fixed in     version 4.17.5+23-ga4e5191dc0-1.

    We recommend that you upgrade your xen packages.

    For the detailed security status of xen please refer to     its security tracker page at:
    https://security-tracker.debian.org/tracker/xen

    Further information about Debian Security Advisories, how to apply     these updates to your system and frequently asked questions can be     found at: https://www.debian.org/security/

    Mailing list: debian-security-announce@lists.debian.org

Tenable has extracted the preceding description block directly from the Debian 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 SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 / openSUSE 15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2024:4163-1 advisory.

    Security issues fixed:

    - CVE-2024-45818: xen: Deadlock in x86 HVM standard VGA handling (bsc#1232622)
    - CVE-2024-45819: xen: libxl leaks data to PVH guests via ACPI tables (bsc#1232624)
    - CVE-2024-45817: xen: x86: Deadlock in vlapic_error() (bsc#1230366)

    Non-security issues fixed:

    - Removed usage of net-tools-deprecated from supportconfig plugin (bsc#1232542)
    - Upstream bug fixes (bsc#1027519)

Tenable has extracted the preceding description block directly from the SUSE 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 SUSE Linux SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2024:4073-1 advisory.

    Security issues fixed:

    - CVE-2024-45818: xen: Deadlock in x86 HVM standard VGA handling (bsc#1232622)
    - CVE-2024-45819: xen: libxl leaks data to PVH guests via ACPI tables (bsc#1232624)
    - CVE-2024-45817: xen: x86: Deadlock in vlapic_error() (bsc#1230366)

    Non-security issue fixed:

    - Removed usage of net-tools-deprecated from supportconfig plugin (bsc#1232542)

Tenable has extracted the preceding description block directly from the SUSE 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 Fedora 41 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2024-60809cb44e advisory.

    x86: Deadlock in vlapic_error() [XSA-462, CVE-2024-45817]


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

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

The remote SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 / openSUSE 15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2024:3980-1 advisory.

    Security issues fixed:

    - CVE-2024-45818: xen: Deadlock in x86 HVM standard VGA handling (bsc#1232622)
    - CVE-2024-45819: xen: libxl leaks data to PVH guests via ACPI tables (bsc#1232624)
    - CVE-2024-45817: xen: x86: Deadlock in vlapic_error() (bsc#1230366)

    Non-security issues fixed:

    - Removed usage of net-tools-deprecated from supportconfig plugin (bsc#1232542)
    - Upstream bug fixes (bsc#1027519)

Tenable has extracted the preceding description block directly from the SUSE 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 SUSE Linux SLES12 / SLES_SAP12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2024:3586-1 advisory.

    Security fixes:

    - CVE-2024-31145: Fixed error handling in x86 IOMMU identity mapping (XSA-460) (bsc#1228574)
    - CVE-2024-31146: Fixed PCI device pass-through with shared resources (XSA-461) (bsc#1228575)
    - CVE-2024-45817: Fixed Deadlock in vlapic_error() (XSA-462) (bsc#1230366)

    Other fixes:

    - Upstream bug fixes (bsc#1027519)

Tenable has extracted the preceding description block directly from the SUSE 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 Fedora 39 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2024-020dbf247c advisory.

    x86: Deadlock in vlapic_error() [XSA-462, CVE-2024-45817]

    ----

    update to xen-4.17.5


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

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

The remote Fedora 40 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2024-051cf1553e advisory.

    x86: Deadlock in vlapic_error() [XSA-462, CVE-2024-45817]


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

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

The remote SUSE Linux SLES12 / SLES_SAP12 host has packages installed that are affected by a vulnerability as referenced in the SUSE-SU-2024:3432-1 advisory.

    - CVE-2024-45817: Fixed a deadlock in vlapic_error (XSA-462, bsc#1230366)

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

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

The remote SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 / openSUSE 15 host has packages installed that are affected by a vulnerability as referenced in the SUSE-SU-2024:3421-1 advisory.

    - CVE-2024-45817: Fixed a deadlock in vlapic_error (XSA-462, bsc#1230366)

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

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

The remote SUSE Linux SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2024:3423-1 advisory.

    - CVE-2024-2201: Mitigation for Native Branch History Injection (XSA-456, bsc#1222453)
    - CVE-2024-31143: Fixed double unlock in x86 guest IRQ handling (XSA-458, bsc#1227355)
    - CVE-2024-31145: Fixed error handling in x86 IOMMU identity mapping (XSA-460, bsc#1228574)
    - CVE-2024-31146: Fixed PCI device pass-through with shared resources (XSA-461, bsc#1228575)
    - CVE-2024-45817: Fixed a deadlock in vlapic_error (XSA-462, bsc#1230366)

Tenable has extracted the preceding description block directly from the SUSE 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 SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 / openSUSE 15 host has packages installed that are affected by a vulnerability as referenced in the SUSE-SU-2024:3424-1 advisory.

    - CVE-2024-45817: Fixed a deadlock in vlapic_error. (bsc#1230366, XSA-462)

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

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

ID	Name	Product	Family	Severity
229384	Linux Distros Unpatched Vulnerability : CVE-2024-45817	Nessus	Misc.	medium
213392	Debian dsa-5836 : libxen-dev - security update	Nessus	Debian Local Security Checks	high
212564	SUSE SLED15 / SLES15 / openSUSE 15 Security Update : xen (SUSE-SU-2024:4163-1)	Nessus	SuSE Local Security Checks	medium
212530	SUSE SLES15 Security Update : xen (SUSE-SU-2024:4073-1)	Nessus	SuSE Local Security Checks	medium
211154	Fedora 41 : xen (2024-60809cb44e)	Nessus	Fedora Local Security Checks	medium
210883	SUSE SLED15 / SLES15 / openSUSE 15 Security Update : xen (SUSE-SU-2024:3980-1)	Nessus	SuSE Local Security Checks	medium
208719	SUSE SLES12 Security Update : xen (SUSE-SU-2024:3586-1)	Nessus	SuSE Local Security Checks	high
208664	Fedora 39 : xen (2024-020dbf247c)	Nessus	Fedora Local Security Checks	medium
208663	Fedora 40 : xen (2024-051cf1553e)	Nessus	Fedora Local Security Checks	medium
207777	SUSE SLES12 Security Update : xen (SUSE-SU-2024:3432-1)	Nessus	SuSE Local Security Checks	medium
207725	SUSE SLED15 / SLES15 / openSUSE 15 Security Update : xen (SUSE-SU-2024:3421-1)	Nessus	SuSE Local Security Checks	medium
207717	SUSE SLES15 Security Update : xen (SUSE-SU-2024:3423-1)	Nessus	SuSE Local Security Checks	high
207716	SUSE SLED15 / SLES15 / openSUSE 15 Security Update : xen (SUSE-SU-2024:3424-1)	Nessus	SuSE Local Security Checks	medium

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CVE-2024-45817

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