Executive Summary

Title PEAR vulnerability
Name USN-3857-1 First vendor Publication 2019-01-14
Vendor Ubuntu Last vendor Modification 2019-01-14
Severity (Vendor) N/A Revision N/A

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:M/Au:N/C:P/I:P/A:P)
Cvss Base Score 6.8 Attack Range Network
Cvss Impact Score 6.4 Attack Complexity Medium
Cvss Expoit Score 8.6 Authentication None Required
Calculate full CVSS 2.0 Vectors scores


A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 18.10 - Ubuntu 18.04 LTS - Ubuntu 16.04 LTS


XXX FILL ME IN: Summary for regular (non-admin) users XXX

XXX LOCAL TEMPLATES XXX PEAR could be made to run programs if it processed a specially crafted file.

Software Description: - php-pear: PHP Extension and Application Repository


Fariskhi Vidyan discovered that PEAR Archive_Tar incorrectly handled certain archive paths. A remote attacker could possibly use this issue to execute arbitrary code.

Update instructions:

The problem can be corrected by updating your system to the following package versions:

Ubuntu 18.10:
php-pear 1:1.10.5+submodules+notgz-1ubuntu1.18.10.1

Ubuntu 18.04 LTS:
php-pear 1:1.10.5+submodules+notgz-1ubuntu1.18.04.1

Ubuntu 16.04 LTS:
php-pear 1:1.10.1+submodules+notgz-6ubuntu0.1

In general, a standard system update will make all the necessary changes.


Package Information:



Original Source

Url : http://www.ubuntu.com/usn/USN-3857-1

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-502 Deserialization of Untrusted Data

CPE : Common Platform Enumeration

Os 3
Os 2

Snort® IPS/IDS

Date Description
2019-03-14 PEAR Archive_Tar PHP object injection attempt
RuleID : 49185 - Revision : 1 - Type : INDICATOR-COMPROMISE
2019-03-14 PEAR Archive_Tar PHP object injection attempt
RuleID : 49184 - Revision : 1 - Type : INDICATOR-COMPROMISE

Nessus® Vulnerability Scanner

Date Description
2019-01-16 Name : A PHP application running on the remote web server is affected by multiple vu...
File : drupal_8_6_6.nasl - Type : ACT_GATHER_INFO

Alert History

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Date Informations
2019-02-11 21:21:30
  • Multiple Updates
2019-01-14 21:18:42
  • First insertion