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CentOS 9 : swtpm-0.7.0-2.20211109gitb79fd91.el9

medium Nessus Plugin ID 191172

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Synopsis

The remote CentOS host is missing a security update for swtpm.

Description

The remote CentOS Linux 9 host has packages installed that are affected by a vulnerability as referenced in the swtpm-0.7.0-2.20211109gitb79fd91.el9 build changelog.

 - swtpm is a libtpms-based TPM emulator with socket, character device, and Linux CUSE interface. Versions prior to 0.5.3, 0.6.2, and 0.7.1 are vulnerable to out-of-bounds read. A specially crafted header of swtpm's state, where the blobheader's hdrsize indicator has an invalid value, may cause an out-of-bounds access when the byte array representing the state of the TPM is accessed. This will likely crash swtpm or prevent it from starting since the state cannot be understood. Users should upgrade to swtpm v0.5.3, v0.6.2, or v0.7.1 to receive a patch. There are currently no known workarounds. (CVE-2022-23645)

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

Solution

Update the CentOS 9 Stream swtpm package.

See Also

https://kojihub.stream.centos.org/koji/buildinfo?buildID=18248

Plugin Details

Severity: Medium

ID: 191172

File Name: centos9_swtpm-0_7_0-2_20211109gitb79fd91.nasl

Version: 1.1

Type: local

Agent: unix

Published: 2/29/2024

Updated: 4/26/2024

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

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Low

Base Score: 2.1

Temporal Score: 1.6

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

CVSS Score Source: CVE-2022-23645

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.8

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

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

Vulnerability Information

CPE: cpe:/a:centos:centos:9, p-cpe:/a:centos:centos:swtpm, p-cpe:/a:centos:centos:swtpm-devel, p-cpe:/a:centos:centos:swtpm-libs, p-cpe:/a:centos:centos:swtpm-tools, p-cpe:/a:centos:centos:swtpm-tools-pkcs11

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

Exploit Ease: No known exploits are available

Patch Publication Date: 4/26/2022

Vulnerability Publication Date: 2/18/2022

Reference Information

CVE: CVE-2022-23645