Amazon Linux 2 : p11-kit (ALAS-2021-1601)

medium Nessus Plugin ID 147715

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Synopsis

The remote Amazon Linux 2 host is missing a security update.

Description

The version of p11-kit installed on the remote host is prior to 0.23.22-1. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2021-1601 advisory.

An issue was discovered in p11-kit 0.21.1 through 0.23.21. Multiple integer overflows have been discovered in the array allocations in the p11-kit library and the p11-kit list command, where overflow checks are missing before calling realloc or calloc. (CVE-2020-29361)

An issue was discovered in p11-kit 0.21.1 through 0.23.21. A heap-based buffer over-read has been discovered in the RPC protocol used by thep11-kit server/remote commands and the client library. When the remote entity supplies a byte array through a serialized PKCS#11 function call, the receiving entity may allow the reading of up to 4 bytes of memory past the heap allocation. (CVE-2020-29362)

An issue was discovered in p11-kit 0.23.6 through 0.23.21. A heap-based buffer overflow has been discovered in the RPC protocol used by p11-kit server/remote commands and the client library. When the remote entity supplies a serialized byte array in a CK_ATTRIBUTE, the receiving entity may not allocate sufficient length for the buffer to store the deserialized value. (CVE-2020-29363)

Tenable has extracted the preceding description block directly from the tested product 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

Run 'yum update p11-kit' to update your system.

Plugin Details

Severity: Medium

ID: 147715

File Name: al2_ALAS-2021-1601.nasl

Version: 1.3

Type: local

Agent: unix

Family: Amazon Linux Local Security Checks

Published: 3/12/2021

Updated: 12/11/2024

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

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

CVSS Score Source: CVE-2020-29362

CVSS v3

Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.6

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

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

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:p11-kit-debuginfo, p-cpe:/a:amazon:linux:p11-kit, cpe:/o:amazon:linux:2, p-cpe:/a:amazon:linux:p11-kit-trust, p-cpe:/a:amazon:linux:p11-kit-devel, p-cpe:/a:amazon:linux:p11-kit-server

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

Exploit Ease: No known exploits are available

Patch Publication Date: 2/17/2021

Vulnerability Publication Date: 12/16/2020

Reference Information

CVE: CVE-2020-29361, CVE-2020-29362, CVE-2020-29363

ALAS: 2021-1601

Detections

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