Amazon Linux 2 : php-pear (ALAS-2021-1708)

high Nessus Plugin ID 153424
New! Plugin Severity Now Using CVSS v3

The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Synopsis

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

Description

The version of php-pear installed on the remote host is prior to 1.10.12-9. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2021-1708 advisory.

- Tar.php in Archive_Tar through 1.4.11 allows write operations with Directory Traversal due to inadequate checking of symbolic links, a related issue to CVE-2020-28948. (CVE-2020-36193)

- In Archive_Tar before 1.4.14, symlinks can refer to targets outside of the extracted archive, a different vulnerability than CVE-2020-36193. (CVE-2021-32610)

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

Solution

Run 'yum update php-pear' to update your system.

See Also

https://alas.aws.amazon.com/AL2/ALAS-2021-1708.html

https://access.redhat.com/security/cve/CVE-2021-32610

Plugin Details

Severity: High

ID: 153424

File Name: al2_ALAS-2021-1708.nasl

Version: 1.2

Type: local

Agent: unix

Published: 9/16/2021

Updated: 9/16/2021

Dependencies: ssh_get_info.nasl

Risk Information

CVSS Score Source: CVE-2020-36193

VPR

Risk Factor: Medium

Score: 5.2

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

Temporal Vector: E:U/RL:OF/RC:C

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

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

Vulnerability Information

CPE: p-cpe:/a:amazon:linux:php-pear, cpe:/o:amazon:linux:2

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

Exploit Ease: No known exploits are available

Patch Publication Date: 9/8/2021

Vulnerability Publication Date: 1/18/2021

Reference Information

CVE: CVE-2020-36193, CVE-2021-32610

ALAS: 2021-1708