PHP up to 5.6.39/7.1.25/7.2.13/7.3.0 phar ext/phar/phar.c phar_detect_phar_fname_ext out-of-bounds
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
8.4 | $0-$5k | 0.00 |
A vulnerability was found in PHP up to 5.6.39/7.1.25/7.2.13/7.3.0 (Programming Language Software). It has been declared as critical. This vulnerability affects the function phar_detect_phar_fname_ext
of the file ext/phar/phar.c of the component phar. The manipulation with an unknown input leads to a out-of-bounds vulnerability. The CWE definition for the vulnerability is CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:
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.
The bug was discovered 02/22/2019. The weakness was published 02/22/2019 (Website). The advisory is available at securityfocus.com. This vulnerability was named CVE-2019-9021 since 02/22/2019. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details are known, but there is no available exploit.
The commercial vulnerability scanner Qualys is able to test this issue with plugin 176624 (Debian Security Update for php7.0 (DSA 4398-1)).
Upgrading to version 5.6.40, 7.1.26, 7.2.14 or 7.3.1 eliminates this vulnerability.
Similar entries are available at 131077, 131109, 131111 and 131112.
Product
Type
Name
Version
- 5.6.0
- 5.6.1
- 5.6.2
- 5.6.3
- 5.6.4
- 5.6.5
- 5.6.6
- 5.6.7
- 5.6.8
- 5.6.9
- 5.6.10
- 5.6.11
- 5.6.12
- 5.6.13
- 5.6.14
- 5.6.15
- 5.6.16
- 5.6.17
- 5.6.18
- 5.6.19
- 5.6.20
- 5.6.21
- 5.6.22
- 5.6.23
- 5.6.24
- 5.6.25
- 5.6.26
- 5.6.27
- 5.6.28
- 5.6.29
- 5.6.30
- 5.6.31
- 5.6.32
- 5.6.33
- 5.6.34
- 5.6.35
- 5.6.36
- 5.6.37
- 5.6.38
- 5.6.39
- 7.0
- 7.1
- 7.1.0
- 7.1.1
- 7.1.2
- 7.1.3
- 7.1.4
- 7.1.5
- 7.1.6
- 7.1.7
- 7.1.8
- 7.1.9
- 7.1.10
- 7.1.11
- 7.1.12
- 7.1.13
- 7.1.14
- 7.1.15
- 7.1.16
- 7.1.17
- 7.1.18
- 7.1.19
- 7.1.20
- 7.1.21
- 7.1.22
- 7.1.23
- 7.1.24
- 7.1.25
- 7.2
- 7.2.0
- 7.2.1
- 7.2.2
- 7.2.3
- 7.2.4
- 7.2.5
- 7.2.6
- 7.2.7
- 7.2.8
- 7.2.9
- 7.2.10
- 7.2.11
- 7.2.12
- 7.2.13
- 7.3
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 8.5VulDB Meta Temp Score: 8.4
VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 9.8
NVD Vector: 🔍
CVSSv2
AV | AC | Au | C | I | A |
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💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
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Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Out-of-boundsCWE: CWE-125 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
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Today | unlock | unlock | unlock | unlock |
Qualys ID: 🔍
Qualys Name: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Upgrade: PHP 5.6.40/7.1.26/7.2.14/7.3.1
Timeline
02/22/2019 🔍02/22/2019 🔍
02/22/2019 🔍
02/22/2019 🔍
02/23/2019 🔍
07/19/2023 🔍
Sources
Product: php.orgAdvisory: RHSA-2019:2519⛔
Status: Confirmed
Confirmation: 🔍
CVE: CVE-2019-9021 (🔍)
SecurityFocus: 107156 - PHP Information Disclosure and Heap Buffer Overflow Vulnerabilities
See also: 🔍
Entry
Created: 02/23/2019 07:59Updated: 07/19/2023 09:06
Changes: 02/23/2019 07:59 (62), 05/12/2020 09:58 (5), 07/19/2023 09:06 (4)
Complete: 🔍
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