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CVE-2019-11035— Heap over-read in PHP EXIF extension

Quick assessment

Affected
PHP Group PHP
Exploitation
High exploitation probability; assess promptly
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

PHP（PHP：Hypertext Preprocessor，PHP：超文本预处理器）是PHPGroup和开放源代码社区的共同维护的一种开源的通用计算机脚本语言。该语言主要用于Web开发，支持多种数据库及操作系统。EXIF extension是其中的一个用于读取和编写图像元数据的扩展。 PHP EXIF扩展7.1.28之前的7.1.x版本、7.2.17之前的7.2.x版本和7.3.4之前的7.3.x版本中的‘exif_iif_add_value’函数存在缓冲区溢出漏洞，该漏洞源于网络系统或产品在内存上执行

AI Predicted 5.3 Difficulty: Easy EPSS 4.41% · P91
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I. Basic Information for CVE-2019-11035

Vulnerability Information
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Vulnerability Title
Heap over-read in PHP EXIF extension
Source: CVE Program / CVE List V5
Vulnerability Description
When processing certain files, PHP EXIF extension in versions 7.1.x below 7.1.28, 7.2.x below 7.2.17 and 7.3.x below 7.3.4 can be caused to read past allocated buffer in exif_iif_add_value function. This may lead to information disclosure or crash.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存读
Source: CVE Program / CVE List V5
Vulnerability Title
PHP EXIF扩展缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
PHP（PHP：Hypertext Preprocessor，PHP：超文本预处理器）是PHPGroup和开放源代码社区的共同维护的一种开源的通用计算机脚本语言。该语言主要用于Web开发，支持多种数据库及操作系统。EXIF extension是其中的一个用于读取和编写图像元数据的扩展。 PHP EXIF扩展7.1.28之前的7.1.x版本、7.2.17之前的7.2.x版本和7.3.4之前的7.3.x版本中的‘exif_iif_add_value’函数存在缓冲区溢出漏洞，该漏洞源于网络系统或产品在内存上执行
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
PHP Group PHP 7.1.x ~ 7.1.28 -

II. Public POCs for CVE-2019-11035

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III. Intelligence Information for CVE-2019-11035

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Vendor Advisories for CVE-2019-11035 (7)

Mailing List Discussions for CVE-2019-11035 (5)

Other References for CVE-2019-11035 (1)

IV. Related Vulnerabilities

Same product: PHP
Same vendor: PHP Group
Same weakness: CWE-125