Detections
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Fedora 37 : tigervnc (2023-66d5af0278)

high Nessus Plugin ID 173787

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Synopsis

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

Description

The remote Fedora 37 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2023-66d5af0278 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 these issues but has instead relied only on the application's self-reported version number.

Solution

Update the affected tigervnc package.

See Also

https://bodhi.fedoraproject.org/updates/FEDORA-2023-66d5af0278

Plugin Details

Severity: High

ID: 173787

File Name: fedora_2023-66d5af0278.nasl

Version: 1.1

Type: local

Agent: unix

Published: 4/3/2023

Updated: 4/10/2023

Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

Vector: CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C

CVSS Score Source: CVE-2023-1393

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:fedoraproject:fedora:37, p-cpe:/a:fedoraproject:fedora:tigervnc

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 3/30/2023

Vulnerability Publication Date: 3/29/2023

Reference Information

CVE: CVE-2023-1393