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SUSE SLED15 / SLES15 Security Update : spice-vdagent (SUSE-SU-2021:2614-1)
medium Nessus Plugin ID 152239
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Synopsis
The remote SUSE host is missing one or more security updates.Description
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.- 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 these issues but has instead relied only on the application's self-reported version number.
Solution
Update the affected spice-vdagent package.See Also
https://bugzilla.suse.com/1173749
https://bugzilla.suse.com/1177780
https://bugzilla.suse.com/1177781
https://bugzilla.suse.com/1177782
https://bugzilla.suse.com/1177783
https://www.suse.com/security/cve/CVE-2020-25650
https://www.suse.com/security/cve/CVE-2020-25651
https://www.suse.com/security/cve/CVE-2020-25652
Plugin Details
Severity: Medium
ID: 152239
File Name: suse_SU-2021-2614-1.nasl
Version: 1.5
Type: local
Agent: unix
Family: SuSE Local Security Checks
Published: 8/6/2021
Updated: 7/13/2023
Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 6.0
CVSS v2
Risk Factor: Medium
Base Score: 5.4
Temporal Score: 4.2
Vector: CVSS2#AV:L/AC:M/Au:N/C:P/I:N/A:C
CVSS Score Source: CVE-2020-25653
CVSS v3
Risk Factor: Medium
Base Score: 6.4
Temporal Score: 5.8
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:L
Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C
CVSS Score Source: CVE-2020-25651
Vulnerability Information
CPE: p-cpe:/a:novell:suse_linux:spice-vdagent, cpe:/o:novell:suse_linux:15
Required KB Items: Host/local_checks_enabled, Host/cpu, Host/SuSE/release, Host/SuSE/rpm-list
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 8/5/2021
Vulnerability Publication Date: 11/25/2020
Reference Information
CVE: CVE-2020-25650, CVE-2020-25651, CVE-2020-25652, CVE-2020-25653
SuSE: SUSE-SU-2021:2614-1