SCA: security update for pear/archive_tar (GHSA-3q76-jq6m-573p)

high Tenable Self-Hosted Container Security Plugin ID 409648

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

- PEAR Archive_Tar version 1.4.3 and earlier contains a CWE-502, CWE-915 vulnerability in the Archive_Tar
class. There are several file operations with `$v_header['filename']` as parameter (such as file_exists,
is_file, is_dir, etc). When extract is called without a specific prefix path, we can trigger
unserialization by crafting a tar file with `phar://[path_to_malicious_phar_file]` as path. Object
injection can be used to trigger destruct in the loaded PHP classes, e.g. the Archive_Tar class itself.
With Archive_Tar object injection, arbitrary file deletion can occur because
`@unlink($this->_temp_tarname)` is called. If another class with useful gadget is loaded, it may possible
to cause remote code execution that can result in files being deleted or possibly modified. This
vulnerability appears to have been fixed in 1.4.4. (CVE-2018-1000888)

Plugin Details

Severity: High

ID: 409648

Version: Revision 1.4

Type: Local

Family: SCA Checks

Published: 1/23/2025

Updated: 7/2/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Medium

Score: 6.9

Percentile: 96.95

Vendor

Vendor Severity: High

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5.3

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

CVSS Score Source: CVE-2018-1000888

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.9

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

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

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 7/7/2023

Vulnerability Publication Date: 12/27/2018

Reference Information

CVE: CVE-2018-1000888

BID: 106664

Detections

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