PHP up to 7.3.20/7.4.8 PHAR File phar_parse_zipfile use after free

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.8$0-$5k0.00

Summaryinfo

A vulnerability was found in PHP up to 7.3.20/7.4.8. It has been classified as critical. Impacted is the function phar_parse_zipfile of the component PHAR File Handler. This manipulation causes use after free. The identification of this vulnerability is CVE-2020-7068. It is possible to initiate the attack remotely. There is no exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in PHP up to 7.3.20/7.4.8 (Programming Language Software). It has been declared as critical. Affected by this vulnerability is the function phar_parse_zipfile of the component PHAR File Handler. The manipulation with an unknown input leads to a use after free vulnerability. The CWE definition for the vulnerability is CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

In PHP versions 7.2.x below 7.3.21, 7.3.x below 7.3.21 and 7.4.x below 7.4.9, while processing PHAR files using phar extension, phar_parse_zipfile could be tricked into accessing freed memory, which could lead to a crash or information disclosure.

The weakness was shared 09/09/2020 (Website). The advisory is shared at bugs.php.net. This vulnerability is known as CVE-2020-7068 since 01/15/2020. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details are known, but no exploit is available.

Upgrading to version 7.3.21 or 7.4.9 eliminates this vulnerability.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.1
VulDB Meta Temp Score: 5.9

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 4.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Use after free
CWE: CWE-416 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: PHP 7.3.21/7.4.9

Timelineinfo

01/15/2020 🔍
09/09/2020 +238 days 🔍
09/10/2020 +1 days 🔍
09/10/2020 +0 days 🔍

Sourcesinfo

Product: php.org

Advisory: bugs.php.net
Status: Not defined

CVE: CVE-2020-7068 (🔍)
GCVE (CVE): GCVE-0-2020-7068
GCVE (VulDB): GCVE-100-161089

Entryinfo

Created: 09/10/2020 07:44
Updated: 09/10/2020 07:49
Changes: 09/10/2020 07:44 (40), 09/10/2020 07:49 (12)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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