The remote CentOS Linux 9 host has packages installed that are affected by a vulnerability as referenced in the xorg-x11-server-1.20.11-18.el9 build changelog.

  - A flaw was found in X.Org Server Overlay Window. A Use-After-Free may lead to local privilege escalation.
    If a client explicitly destroys the compositor overlay window (aka COW), the Xserver would leave a     dangling pointer to that window in the CompScreen structure, which will trigger a use-after-free later.
    (CVE-2023-1393)

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-2023:1674-1 advisory.

  - A flaw was found in X.Org Server Overlay Window. A Use-After-Free may lead to local privilege escalation.
    If a client explicitly destroys the compositor overlay window (aka COW), the Xserver would leave a     dangling pointer to that window in the CompScreen structure, which will trigger a use-after-free later.
    (CVE-2023-1393)

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-2023:1677-1 advisory.

  - A flaw was found in X.Org Server Overlay Window. A Use-After-Free may lead to local privilege escalation.
    If a client explicitly destroys the compositor overlay window (aka COW), the Xserver would leave a     dangling pointer to that window in the CompScreen structure, which will trigger a use-after-free later.
    (CVE-2023-1393)

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-2023:1675-1 advisory.

  - A flaw was found in X.Org Server Overlay Window. A Use-After-Free may lead to local privilege escalation.
    If a client explicitly destroys the compositor overlay window (aka COW), the Xserver would leave a     dangling pointer to that window in the CompScreen structure, which will trigger a use-after-free later.
    (CVE-2023-1393)

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 38 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2023-b7835960ac advisory.

    Fix for CVE-2023-1393


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 a vulnerability as referenced in the SUSE-SU-2023:1716-1 advisory.

  - A flaw was found in X.Org Server Overlay Window. A Use-After-Free may lead to local privilege escalation.
    If a client explicitly destroys the compositor overlay window (aka COW), the Xserver would leave a     dangling pointer to that window in the CompScreen structure, which will trigger a use-after-free later.
    (CVE-2023-1393)

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 38 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2023-b87fd3a628 advisory.

    Fixes CVE-2023-1393: X.Org Server Overlay Window Use-After-Free Local Privilege Escalation Vulnerability

Tenable has extracted the preceding description block directly from the Fedora 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 38 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2023-f754e7abfd advisory.

    xwayland 22.1.9     Security fix for CVE-2023-1393


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 37 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2023-66d5af0278 advisory.

    Fixes CVE-2023-1393: X.Org Server Overlay Window Use-After-Free Local Privilege Escalation Vulnerability

Tenable has extracted the preceding description block directly from the Fedora 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 a vulnerability as referenced in the ELSA-2023-1592 advisory.

    [1.12.0-5.2]
    - xorg-x11-server: X.Org Server Overlay Window Use-After-Free Local Privilege Escalation Vulnerability       Resolves: bz#2180308

Tenable has extracted the preceding description block directly from the Oracle Linux 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 Oracle Linux 7 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2023-1594 advisory.

    - CVE fix for: CVE-2023-1393       Resolves: bz#2180291

    xorg-x11-server

Tenable has extracted the preceding description block directly from the Oracle Linux 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 Redhat Enterprise Linux 8 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2023:1600 advisory.

    Virtual Network Computing (VNC) is a remote display system which allows users to view a computing desktop     environment not only on the machine where it is running, but from anywhere on the Internet and from a wide     variety of machine architectures. TigerVNC is a suite of VNC servers and clients.

    Security Fix(es):

    * xorg-x11-server: X.Org Server Overlay Window Use-After-Free Local Privilege Escalation Vulnerability     (CVE-2023-1393)

    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.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux 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 AlmaLinux 9 host has packages installed that are affected by a vulnerability as referenced in the ALSA-2023:1592 advisory.

  - A flaw was found in X.Org Server Overlay Window. A Use-After-Free may lead to local privilege escalation.
    If a client explicitly destroys the compositor overlay window (aka COW), the Xserver would leave a     dangling pointer to that window in the CompScreen structure, which will trigger a use-after-free later.
    (CVE-2023-1393)

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	Published	Updated	Severity
191178	CentOS 9 : xorg-x11-server-1.20.11-18.el9	Nessus	CentOS Local Security Checks	2/29/2024	4/26/2024	high
173684	SUSE SLES12 Security Update : xorg-x11-server (SUSE-SU-2023:1674-1)	Nessus	SuSE Local Security Checks	3/30/2023	7/14/2023	high
173685	SUSE SLES12 Security Update : xorg-x11-server (SUSE-SU-2023:1677-1)	Nessus	SuSE Local Security Checks	3/30/2023	7/14/2023	high
173698	SUSE SLED15 / SLES15 / openSUSE 15 Security Update : xorg-x11-server (SUSE-SU-2023:1675-1)	Nessus	SuSE Local Security Checks	3/30/2023	7/14/2023	high
173761	Fedora 38 : xorg-x11-server (2023-b7835960ac)	Nessus	Fedora Local Security Checks	4/2/2023	11/14/2024	high
173773	SUSE SLED15 / SLES15 / openSUSE 15 Security Update : xwayland (SUSE-SU-2023:1716-1)	Nessus	SuSE Local Security Checks	4/2/2023	7/14/2023	high
173784	Fedora 38 : tigervnc (2023-b87fd3a628)	Nessus	Fedora Local Security Checks	4/3/2023	11/14/2024	high
173786	Fedora 38 : xorg-x11-server-Xwayland (2023-f754e7abfd)	Nessus	Fedora Local Security Checks	4/3/2023	11/14/2024	high
173787	Fedora 37 : tigervnc (2023-66d5af0278)	Nessus	Fedora Local Security Checks	4/3/2023	11/14/2024	high
173832	Oracle Linux 9 : tigervnc (ELSA-2023-1592)	Nessus	Oracle Linux Local Security Checks	4/4/2023	10/22/2024	high
173848	Oracle Linux 7 : tigervnc / and / xorg-x11-server (ELSA-2023-1594)	Nessus	Oracle Linux Local Security Checks	4/4/2023	11/1/2024	high
173850	RHEL 8 : tigervnc (RHSA-2023:1600)	Nessus	Red Hat Local Security Checks	4/4/2023	11/7/2024	high
173916	AlmaLinux 9 : tigervnc (ALSA-2023:1592)	Nessus	Alma Linux Local Security Checks	4/5/2023	4/5/2023	high

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