National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2019-9021 Detail

Current Description

An issue was discovered in PHP before 5.6.40, 7.x before 7.1.26, 7.2.x before 7.2.14, and 7.3.x before 7.3.1. A heap-based buffer over-read in PHAR reading functions in the PHAR extension may allow an attacker to read allocated or unallocated memory past the actual data when trying to parse the file name, a different vulnerability than CVE-2018-20783. This is related to phar_detect_phar_fname_ext in ext/phar/phar.c.

Source:  MITRE
Description Last Modified:  02/22/2019
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 9.8 CRITICAL
Vector: AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H (V3 legend)
Impact Score: 5.9
Exploitability Score: 3.9


Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

CVSS v2.0 Severity and Metrics:

Base Score: 7.5 HIGH
Vector: (AV:N/AC:L/Au:N/C:P/I:P/A:P) (V2 legend)
Impact Subscore: 6.4
Exploitability Subscore: 10.0


Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): Partial
Integrity (I): Partial
Availability (A): Partial
Additional Information:
Allows unauthorized disclosure of information
Allows unauthorized modification
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://www.securityfocus.com/bid/106747 Third Party Advisory VDB Entry
http://www.securityfocus.com/bid/107156 Third Party Advisory VDB Entry
https://bugs.php.net/bug.php?id=77247 Exploit Issue Tracking Patch Vendor Advisory
https://security.netapp.com/advisory/ntap-20190321-0001/
https://usn.ubuntu.com/3902-1/ Third Party Advisory
https://usn.ubuntu.com/3902-2/ Third Party Advisory
https://www.debian.org/security/2019/dsa-4398 Third Party Advisory

Technical Details

Vulnerability Type (View All)

Change History

10 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2019-9021
NVD Published Date:
02/22/2019
NVD Last Modified:
03/21/2019