Detections
Analytics

Ubuntu 18.04 LTS / 20.04 LTS : SPICE vdagent vulnerabilities (USN-4617-1)

medium Nessus Plugin ID 142464

Language:

Synopsis

The remote Ubuntu host is missing one or more security updates.

Description

The remote Ubuntu 18.04 LTS / 20.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-4617-1 advisory.

 Matthias Gerstner discovered that SPICE vdagent incorrectly handled the active_xfers hash table. A local attacker could possibly use this issue to cause SPICE vdagent to consume memory, resulting in a denial of service. (CVE-2020-25650)

 Matthias Gerstner discovered that SPICE vdagent incorrectly handled the active_xfers hash table. A local attacker could possibly use this issue to cause SPICE vdagent to consume memory, resulting in a denial of service, or obtain sensitive file contents. (CVE-2020-25651)

 Matthias Gerstner discovered that SPICE vdagent incorrectly handled a large number of client connections.
 A local attacker could possibly use this issue to cause SPICE vdagent to consume resources, resulting in a denial of service. (CVE-2020-25652)

 Matthias Gerstner discovered that SPICE vdagent incorrectly handled client connections. A local attacker could possibly use this issue to obtain sensitive information, paste clipboard contents, and transfer files into the active session. (CVE-2020-25653)

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.

Solution

Update the affected spice-vdagent package.

See Also

https://ubuntu.com/security/notices/USN-4617-1

Plugin Details

Severity: Medium

ID: 142464

File Name: ubuntu_USN-4617-1.nasl

Version: 1.8

Type: local

Agent: unix

Published: 11/5/2020

Updated: 8/29/2024

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:canonical:ubuntu_linux:spice-vdagent, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, cpe:/o:canonical:ubuntu_linux:20.04:-:lts

Required KB Items: Host/cpu, Host/Debian/dpkg-l, Host/Ubuntu, Host/Ubuntu/release

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 11/4/2020

Vulnerability Publication Date: 11/4/2020

Reference Information

CVE: CVE-2020-25650, CVE-2020-25651, CVE-2020-25652, CVE-2020-25653

USN: 4617-1