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RHEL 8 : spice-vdagent (RHSA-2021:1791)
medium Nessus Plugin ID 149673
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Synopsis
The remote Red Hat host is missing one or more security updates for spice-vdagent.Description
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.
Solution
Update the RHEL spice-vdagent package based on the guidance in RHSA-2021:1791.See Also
http://www.nessus.org/u?66a5dbb0
http://www.nessus.org/u?862005a9
https://access.redhat.com/security/updates/classification/#moderate
https://access.redhat.com/errata/RHSA-2021:1791
https://bugzilla.redhat.com/show_bug.cgi?id=1790904
https://bugzilla.redhat.com/show_bug.cgi?id=1824610
https://bugzilla.redhat.com/show_bug.cgi?id=1886345
https://bugzilla.redhat.com/show_bug.cgi?id=1886359
Plugin Details
Severity: Medium
ID: 149673
File Name: redhat-RHSA-2021-1791.nasl
Version: 1.12
Type: local
Agent: unix
Family: Red Hat Local Security Checks
Published: 5/19/2021
Updated: 11/7/2024
Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 6.0
Vendor
Vendor Severity: Moderate
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:redhat:enterprise_linux:spice-vdagent, cpe:/o:redhat:enterprise_linux:8
Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 5/18/2021
Vulnerability Publication Date: 11/25/2020
Reference Information
CVE: CVE-2020-25650, CVE-2020-25651, CVE-2020-25652, CVE-2020-25653