Detections
Analytics

AlmaLinux 9 : skopeo (ALSA-2022:7955)

high Nessus Plugin ID 167985

Synopsis

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

Description

The remote AlmaLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2022:7955 advisory.

 - A deadlock vulnerability was found in 'github.com/containers/storage' in versions before 1.28.1. When a container image is processed, each layer is unpacked using `tar`. If one of those layers is not a valid `tar` archive this causes an error leading to an unexpected situation where the code indefinitely waits for the tar unpacked stream, which never finishes. An attacker could use this vulnerability to craft a malicious image, which when downloaded and stored by an application using containers/storage, would then cause a deadlock leading to a Denial of Service (DoS). (CVE-2021-20291)

 - In Go before 1.15.13 and 1.16.x before 1.16.5, there can be a panic for a large exponent to the math/big.Rat SetString or UnmarshalText method. (CVE-2021-33198)

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 skopeo and / or skopeo-tests packages.

See Also

https://errata.almalinux.org/9/ALSA-2022-7955.html

Plugin Details

Severity: High

ID: 167985

File Name: alma_linux_ALSA-2022-7955.nasl

Version: 1.3

Type: local

Published: 11/19/2022

Updated: 10/3/2023

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: High

Base Score: 7.1

Temporal Score: 5.6

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

CVSS Score Source: CVE-2021-20291

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.7

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

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

CVSS Score Source: CVE-2021-33198

Vulnerability Information

CPE: p-cpe:/a:alma:linux:skopeo, p-cpe:/a:alma:linux:skopeo-tests, cpe:/o:alma:linux:9, cpe:/o:alma:linux:9::appstream

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 11/15/2022

Vulnerability Publication Date: 4/1/2021

Reference Information

CVE: CVE-2021-20291, CVE-2021-33198

CWE: 400, 667