The remote SUSE Linux SLES15 / SLES_SAP15 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2021:2803-1 advisory.

    - CVE-2020-25650: memory DoS via arbitrary entries in `active_xfers` hash table (bsc#1177780)
    - CVE-2020-25651: possible file transfer DoS and information leak via `active_xfers` hash map     (bsc#1177781)
    - CVE-2020-25652: possibility to exhaust file descriptors in `vdagentd` (bsc#1177782)
    - CVE-2020-25653: UNIX domain socket peer PID retrieved via `SO_PEERCRED` is subject to race condition     (bsc#1177783)

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

  - A race condition vulnerability was found in the way the spice-vdagentd daemon handled new client     connections. This flaw may allow an unprivileged local guest user to become the active agent for spice-     vdagentd, possibly resulting in a denial of service or information leakage from the host. The highest     threat from this vulnerability is to data confidentiality as well as system availability. This flaw     affects spice-vdagent versions 0.20 and prior. (CVE-2020-25653)

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

The remote Redhat Enterprise Linux 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2021:1791 advisory.

    The spice-vdagent packages provide a SPICE agent for Linux guests.

    Security Fix(es):

    * spice-vdagent: possible file transfer DoS and information leak via active_xfers hash map     (CVE-2020-25651)

    * spice-vdagent: UNIX domain socket peer PID retrieved via SO_PEERCRED is subject to race condition     (CVE-2020-25653)

    * spice-vdagent: memory DoS via arbitrary entries in active_xfers hash table (CVE-2020-25650)

    * spice-vdagent: possibility to exhaust file descriptors in vdagentd (CVE-2020-25652)

    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 8.4 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.

This update for spice-vdagent fixes the following issues :

Security issues fixed :

CVE-2020-25650: Fixed a memory DoS via arbitrary entries in `active_xfers` hash table (bsc#1177780).

CVE-2020-25651: Fixed a possible file transfer DoS and information leak via `active_xfers` hash map (bsc#1177781).

CVE-2020-25652: Fixed a possibility to exhaust file descriptors in `vdagentd` (bsc#1177782).

CVE-2020-25653: Fixed a race condition when the UNIX domain socket peer PID retrieved via `SO_PEERCRED` (bsc#1177783).

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote Fedora 32 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2021-510977db25 advisory.

  - A flaw was found in the way the spice-vdagentd daemon handled file transfers from the host system to the     virtual machine. Any unprivileged local guest user with access to the UNIX domain socket path `/run/spice-     vdagentd/spice-vdagent-sock` could use this flaw to perform a memory denial of service for spice-vdagentd     or even other processes in the VM system. The highest threat from this vulnerability is to system     availability. This flaw affects spice-vdagent versions 0.20 and previous versions. (CVE-2020-25650)

  - A flaw was found in the SPICE file transfer protocol. File data from the host system can end up in full or     in parts in the client connection of an illegitimate local user in the VM system. Active file transfers     from other users could also be interrupted, resulting in a denial of service. The highest threat from this     vulnerability is to data confidentiality as well as system availability. This flaw affects spice-vdagent     versions 0.20 and prior. (CVE-2020-25651)

  - A flaw was found in the spice-vdagentd daemon, where it did not properly handle client connections that     can be established via the UNIX domain socket in `/run/spice-vdagentd/spice-vdagent-sock`. Any     unprivileged local guest user could use this flaw to prevent legitimate agents from connecting to the     spice-vdagentd daemon, resulting in a denial of service. The highest threat from this vulnerability is to     system availability. This flaw affects spice-vdagent versions 0.20 and prior. (CVE-2020-25652)

  - A race condition vulnerability was found in the way the spice-vdagentd daemon handled new client     connections. This flaw may allow an unprivileged local guest user to become the active agent for spice-     vdagentd, possibly resulting in a denial of service or information leakage from the host. The highest     threat from this vulnerability is to data confidentiality as well as system availability. This flaw     affects spice-vdagent versions 0.20 and prior. (CVE-2020-25653)

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 / SLES15 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2021:2614-1 advisory.

    - Update to version 0.21.0
    - CVE-2020-25650: memory DoS via arbitrary entries in `active_xfers` hash table (bsc#1177780)
    - CVE-2020-25651: possible file transfer DoS and information leak via `active_xfers` hash map     (bsc#1177781)
    - CVE-2020-25652: possibility to exhaust file descriptors in `vdagentd` (bsc#1177782)
    - CVE-2020-25653: UNIX domain socket peer PID retrieved via `SO_PEERCRED` is subject to race condition     (bsc#1177783)

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 MiracleLinux 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the AXSA:2021-2117:03 advisory.

    * spice-vdagent: possible file transfer DoS and information leak via active_xfers hash map     (CVE-2020-25651)
      * spice-vdagent: UNIX domain socket peer PID retrieved via SO_PEERCRED is subject to race condition     (CVE-2020-25653)
      * spice-vdagent: memory DoS via arbitrary entries in active_xfers hash table (CVE-2020-25650)
      * spice-vdagent: possibility to exhaust file descriptors in vdagentd (CVE-2020-25652)

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

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

According to the versions of the spice-vdagent package installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - A flaw was found in the way the spice-vdagentd daemon     handled file transfers from the host system to the     virtual machine. Any unprivileged local guest user with     access to the UNIX domain socket path     `/run/spice-vdagentd/spice-vdagent-sock` could use this     flaw to perform a memory denial of service for     spice-vdagentd or even other processes in the VM     system. The highest threat from this vulnerability is     to system availability. This flaw affects spice-vdagent     versions 0.20 and previous versions.(CVE-2020-25650)

  - A flaw was found in the SPICE file transfer protocol.
    File data from the host system can end up in full or in     parts in the client connection of an illegitimate local     user in the VM system. Active file transfers from other     users could also be interrupted, resulting in a denial     of service. The highest threat from this vulnerability     is to data confidentiality as well as system     availability. This flaw affects spice-vdagent versions     0.20 and prior.(CVE-2020-25651)

  - A flaw was found in the spice-vdagentd daemon, where it     did not properly handle client connections that can be     established via the UNIX domain socket in     `/run/spice-vdagentd/spice-vdagent-sock`. Any     unprivileged local guest user could use this flaw to     prevent legitimate agents from connecting to the     spice-vdagentd daemon, resulting in a denial of     service. The highest threat from this vulnerability is     to system availability. This flaw affects spice-vdagent     versions 0.20 and prior.(CVE-2020-25652)

  - A race condition vulnerability was found in the way the     spice-vdagentd daemon handled new client connections.
    This flaw may allow an unprivileged local guest user to     become the active agent for spice-vdagentd, possibly     resulting in a denial of service or information leakage     from the host. The highest threat from this     vulnerability is to data confidentiality as well as     system availability. This flaw affects spice-vdagent     versions 0.20 and prior.(CVE-2020-25653)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote Oracle Linux 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the ELSA-2021-1791 advisory.

    [0.20.0-3]
    - Fix mouse problems in multi-monitor environments under Wayland       Resolves: rhbz#1790904 rhbz#1824610

    [0.20.0-2]
    - Resolves: CVE-2020-25650, CVE-2020-25651, CVE-2020-25652, CVE-2020-25653

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.

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
152709	SUSE SLES15 Security Update : spice-vdagent (SUSE-SU-2021:2803-1)	Nessus	SuSE Local Security Checks	2021/8/21	2026/6/25	medium
257481	Linux Distros Unpatched Vulnerability : CVE-2020-25653	Nessus	Misc.	2025/8/27	2026/7/24	medium
149673	RHEL 8 : spice-vdagent (RHSA-2021:1791)	Nessus	Red Hat Local Security Checks	2021/5/19	2024/11/7	medium
143792	SUSE SLED15 / SLES15 Security Update : spice-vdagent (SUSE-SU-2020:3268-1)	Nessus	SuSE Local Security Checks	2020/12/9	2024/2/5	medium
146564	Fedora 32 : spice-vdagent (2021-510977db25)	Nessus	Fedora Local Security Checks	2021/2/17	2024/1/22	medium
152239	SUSE SLED15 / SLES15 Security Update : spice-vdagent (SUSE-SU-2021:2614-1)	Nessus	SuSE Local Security Checks	2021/8/6	2026/6/25	medium
293952	MiracleLinux 8 : spice-vdagent-0.20.0-3.el8 (AXSA:2021-2117:03)	Nessus	Miracle Linux Local Security Checks	2026/1/20	2026/1/20	medium
153060	EulerOS 2.0 SP5 : spice-vdagent (EulerOS-SA-2021-2350)	Nessus	Huawei Local Security Checks	2021/9/7	2023/12/1	medium
149956	Oracle Linux 8 : spice-vdagent (ELSA-2021-1791)	Nessus	Oracle Linux Local Security Checks	2021/5/26	2024/10/23	medium
152281	EulerOS 2.0 SP9 : spice-vdagent (EulerOS-SA-2021-2283)	Nessus	Huawei Local Security Checks	2021/8/9	2023/12/6	medium
152304	EulerOS 2.0 SP9 : spice-vdagent (EulerOS-SA-2021-2257)	Nessus	Huawei Local Security Checks	2021/8/9	2023/12/6	medium

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