Vulnerabilities > CVE-2020-7064 - Out-of-bounds Read vulnerability in multiple products

In PHP versions 7.2.x below 7.2.9, 7.3.x below 7.3.16 and 7.4.x below 7.4.4, while parsing EXIF data with exif_read_data() function, it is possible for malicious data to cause PHP to read one byte of uninitialized memory. This could potentially lead to information disclosure or crash.

Vulnerable Configurations

Part	Description	Count
Application	Php PHP PHP 7.3.0 PHP PHP 7.3.1 PHP PHP 7.3.2 PHP PHP 7.3.3 PHP PHP 7.3.4 PHP PHP 7.3.5 PHP PHP 7.3.6 PHP PHP 7.3.7 PHP PHP 7.3.8 PHP PHP 7.3.9 PHP PHP 7.3.10 PHP PHP 7.3.11 PHP PHP 7.3.12 PHP PHP 7.3.13 PHP PHP 7.3.14 PHP PHP 7.3.15 PHP PHP 7.2.0 PHP PHP 7.2.1 PHP PHP 7.2.2 PHP PHP 7.2.3 PHP PHP 7.2.4 PHP PHP 7.2.5 PHP PHP 7.2.6 PHP PHP 7.2.7 PHP PHP 7.2.8 PHP PHP 7.2.9 PHP PHP 7.2.10 PHP PHP 7.2.11 PHP PHP 7.2.12 PHP PHP 7.2.13 PHP PHP 7.2.14 PHP PHP 7.2.15 PHP PHP 7.2.16 PHP PHP 7.2.17 PHP PHP 7.2.18 PHP PHP 7.2.19 PHP PHP 7.2.20 PHP PHP 7.2.21 PHP PHP 7.2.22 PHP PHP 7.2.23 PHP PHP 7.2.24 PHP PHP 7.2.25 PHP PHP 7.2.26 PHP PHP 7.2.27 PHP PHP 7.4.0 PHP PHP 7.4.1 PHP PHP 7.4.2 PHP PHP 7.4.3	128
Application	Tenable Tenable Tenable.Sc - Tenable Tenable.Sc 5.13.0 Tenable Tenable.Sc 5.14.0 Tenable Tenable.Sc 5.14.1 Tenable Tenable.Sc 5.16.0 Tenable Tenable.Sc 5.17.0 Tenable Tenable.Sc 5.18.0 Tenable Tenable.Sc 5.19.0	8
OS	Debian Debian Debian Linux 8.0 Debian Debian Linux 9.0 Debian Debian Linux 10.0	3
OS	Canonical Canonical Ubuntu Linux 16.04 Canonical Ubuntu Linux 12.04 Canonical Ubuntu Linux 18.04 Canonical Ubuntu Linux 14.04 Canonical Ubuntu Linux 19.10 Canonical Ubuntu Linux 20.04	6
OS	Opensuse Opensuse Leap 15.1	1

Common Weakness Enumeration (CWE)

CWE-125 - Out-of-bounds Read

Common Attack Pattern Enumeration and Classification (CAPEC)

Overread Buffers
An adversary attacks a target by providing input that causes an application to read beyond the boundary of a defined buffer. This typically occurs when a value influencing where to start or stop reading is set to reflect positions outside of the valid memory location of the buffer. This type of attack may result in exposure of sensitive information, a system crash, or arbitrary code execution.

Nessus

NASL family	Huawei Local Security Checks
NASL id	EULEROS_SA-2020-1586.NASL
description	According to the versions of the php packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - In PHP versions 7.2.x below 7.2.9, 7.3.x below 7.3.16 and 7.4.x below 7.4.34, while parsing EXIF data with exif_read_data() function, it is possible for malicious data to cause PHP to read one byte of uninitialized memory. This could potentially lead to information disclosure or crash.(CVE-2020-7064) - In PHP versions 7.2.x below 7.2.29, 7.3.x below 7.3.16 and 7.4.x below 7.4.4, while using get_headers() with user-supplied URL, if the URL contains zero (\0) character, the URL will be silently truncated at it. This may cause some software to make incorrect assumptions about the target of the get_headers() and possibly send some information to a wrong server.(CVE-2020-7066) Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
last seen	2020-06-06
modified	2020-05-26
plugin id	136864
published	2020-05-26
reporter	This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.
source	https://www.tenable.com/plugins/nessus/136864
title	EulerOS 2.0 SP8 : php (EulerOS-SA-2020-1586)

NASL family	SuSE Local Security Checks
NASL id	OPENSUSE-2020-642.NASL
description	This update for php7 fixes the following issues : - CVE-2020-7064: Fixed a one byte read of uninitialized memory in exif_read_data() (bsc#1168326). - CVE-2020-7066: Fixed URL truncation get_headers() if the URL contains zero (\0) character (bsc#1168352). This update was imported from the SUSE:SLE-15:Update update project.
last seen	2020-05-15
modified	2020-05-11
plugin id	136460
published	2020-05-11
reporter	This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.
source	https://www.tenable.com/plugins/nessus/136460
title	openSUSE Security Update : php7 (openSUSE-2020-642)

NASL family	Amazon Linux Local Security Checks
NASL id	ALA_ALAS-2020-1368.NASL
description	In PHP versions 7.2.x below 7.2.9, 7.3.x below 7.3.16 and 7.4.x below 7.4.34, while parsing EXIF data with exif_read_data() function, it is possible for malicious data to cause PHP to read one byte of uninitialized memory. This could potentially lead to information disclosure or crash. (CVE-2020-7064) In PHP versions 7.3.x below 7.3.16 and 7.4.x below 7.4.34, while using mb_strtolower() function with UTF-32LE encoding, certain invalid strings could cause PHP to overwrite stack-allocated buffer. This could lead to memory corruption, crashes and potentially code execution. (CVE-2020-7065) In PHP versions 7.2.x below 7.2.29, 7.3.x below 7.3.16 and 7.4.x below 7.4.4, while using get_headers() with user-supplied URL, if the URL contains zero (\0) character, the URL will be silently truncated at it. This may cause some software to make incorrect assumptions about the target of the get_headers() and possibly send some information to a wrong server. (CVE-2020-7066) In PHP versions 7.2.x below 7.2.30, 7.3.x below 7.3.17 and 7.4.x below 7.4.5, if PHP is compiled with EBCDIC support (uncommon), urldecode() function can be made to access locations past the allocated memory, due to erroneously using signed numbers as array indexes. (CVE-2020-7067)
last seen	2020-05-21
modified	2020-05-15
plugin id	136629
published	2020-05-15
reporter	This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.
source	https://www.tenable.com/plugins/nessus/136629
title	Amazon Linux AMI : php73 (ALAS-2020-1368)

NASL family	Ubuntu Local Security Checks
NASL id	UBUNTU_USN-4330-2.NASL
description	USN-4330-1 fixed vulnerabilities in PHP. This update provides the corresponding update for Ubuntu 20.04 LTS. Original advisory details : It was discovered that PHP incorrectly handled certain EXIF files. An attacker could possibly use this issue to access sensitive information or cause a crash. (CVE-2020-7064) It was discovered that PHP incorrectly handled certain UTF strings. An attacker could possibly use this issue to cause a crash or execute arbitrary code. (CVE-2020-7065) It was discovered that PHP incorrectly handled certain URLs. An attacker could possibly use this issue to expose sensitive information. (CVE-2020-7066). Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
last seen	2020-05-12
modified	2020-05-07
plugin id	136398
published	2020-05-07
reporter	Ubuntu Security Notice (C) 2020 Canonical, Inc. / NASL script (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.
source	https://www.tenable.com/plugins/nessus/136398
title	Ubuntu 20.04 : php7.4 vulnerabilities (USN-4330-2)

NASL family	SuSE Local Security Checks
NASL id	SUSE_SU-2020-1199-1.NASL
description	This update for php7 fixes the following issues : CVE-2020-7064: Fixed a one byte read of uninitialized memory in exif_read_data() (bsc#1168326). CVE-2020-7066: Fixed URL truncation get_headers() if the URL contains zero (\0) character (bsc#1168352). Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
last seen	2020-05-15
modified	2020-05-11
plugin id	136469
published	2020-05-11
reporter	This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.
source	https://www.tenable.com/plugins/nessus/136469
title	SUSE SLED15 / SLES15 Security Update : php7 (SUSE-SU-2020:1199-1)

NASL family	Ubuntu Local Security Checks
NASL id	UBUNTU_USN-4330-1.NASL
description	It was discovered that PHP incorrectly handled certain file uploads. An attacker could possibly use this issue to cause a crash. (CVE-2020-7062) It was discovered that PHP incorrectly handled certain PHAR archive files. An attacker could possibly use this issue to access sensitive information. (CVE-2020-7063) It was discovered that PHP incorrectly handled certain EXIF files. An attacker could possibly use this issue to access sensitive information or cause a crash. (CVE-2020-7064) It was discovered that PHP incorrectly handled certain UTF strings. An attacker could possibly use this issue to cause a crash or execute arbitrary code. This issue only affected Ubuntu 19.10. (CVE-2020-7065) It was discovered that PHP incorrectly handled certain URLs. An attacker could possibly use this issue to expose sensitive information. This issue only affected Ubuntu 16.04 LTS, Ubuntu 18.04 LTS and Ubuntu 19.10. (CVE-2020-7066). Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
last seen	2020-04-30
modified	2020-04-16
plugin id	135672
published	2020-04-16
reporter	Ubuntu Security Notice (C) 2020 Canonical, Inc. / NASL script (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.
source	https://www.tenable.com/plugins/nessus/135672
title	Ubuntu 16.04 LTS / 18.04 LTS / 19.10 : php5, php7.0, php7.2, php7.3 vulnerabilities (USN-4330-1)

NASL family	Amazon Linux Local Security Checks
NASL id	ALA_ALAS-2020-1367.NASL
description	In PHP versions 7.2.x below 7.2.9, 7.3.x below 7.3.16 and 7.4.x below 7.4.34, while parsing EXIF data with exif_read_data() function, it is possible for malicious data to cause PHP to read one byte of uninitialized memory. This could potentially lead to information disclosure or crash. (CVE-2020-7064) In PHP versions 7.2.x below 7.2.29, 7.3.x below 7.3.16 and 7.4.x below 7.4.4, while using get_headers() with user-supplied URL, if the URL contains zero (\0) character, the URL will be silently truncated at it. This may cause some software to make incorrect assumptions about the target of the get_headers() and possibly send some information to a wrong server. (CVE-2020-7066) In PHP versions 7.2.x below 7.2.30, 7.3.x below 7.3.17 and 7.4.x below 7.4.5, if PHP is compiled with EBCDIC support (uncommon), urldecode() function can be made to access locations past the allocated memory, due to erroneously using signed numbers as array indexes. (CVE-2020-7067)
last seen	2020-05-21
modified	2020-05-15
plugin id	136628
published	2020-05-15
reporter	This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.
source	https://www.tenable.com/plugins/nessus/136628
title	Amazon Linux AMI : php72 (ALAS-2020-1367)

NASL family	CGI abuses
NASL id	PHP_7_3_16.NASL
description	According to its banner, the version of PHP running on the remote web server is 7.3.x prior to 7.3.16. It is, therefore, affected by the following vulnerabilities: - An out of bounds read resulting in the use of an uninitialized value in exif (CVE-2020-7064) - A stack buffer overflow in allows overwriting of a stack-allocated buffer with an overflown array from .rodata. (CVE-2020-7065) - get_headers() silently truncates anything after a null byte in the URL it uses. An unauthenticated, remote attacker can exploit this to leak sensitive information or cause the web server to unexpectedly process attacker-controlled data. (CVE-2020-7066) Note that Nessus has not tested for this issue but has instead relied only on the application
last seen	2020-04-30
modified	2020-03-27
plugin id	134944
published	2020-03-27
reporter	This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.
source	https://www.tenable.com/plugins/nessus/134944
title	PHP 7.3.x < 7.3.16 Multiple Vulnerabilities

NASL family	Gentoo Local Security Checks
NASL id	GENTOO_GLSA-202003-57.NASL
description	The remote host is affected by the vulnerability described in GLSA-202003-57 (PHP: Multiple vulnerabilities) Multiple vulnerabilities have been discovered in PHP. Please review the CVE identifiers referenced below for details. Impact : An attacker could possibly execute arbitrary shell commands, cause a Denial of Service condition or obtain sensitive information. Workaround : There is no known workaround at this time.
last seen	2020-04-30
modified	2020-03-27
plugin id	134965
published	2020-03-27
reporter	This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.
source	https://www.tenable.com/plugins/nessus/134965
title	GLSA-202003-57 : PHP: Multiple vulnerabilities

NASL family	CGI abuses
NASL id	PHP_7_2_29.NASL
description	According to its banner, the version of PHP running on the remote web server is 7.2.x prior to 7.2.29. It is, therefore, affected by multiple vulnerabilities: - A NULL pointer de-reference flaw exists in PHP
last seen	2020-04-30
modified	2020-03-27
plugin id	134949
published	2020-03-27
reporter	This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.
source	https://www.tenable.com/plugins/nessus/134949
title	PHP 7.2.x < 7.2.29 Multiple Vulnerabilities

NASL family	Fedora Local Security Checks
NASL id	FEDORA_2020-CE5A2A7403.NASL
description	PHP version 7.3.16 (19 Mar 2020) Core: - Fixed bug php#63206 (restore_error_handler does not restore previous errors mask). (Mark Plomer) DOM: - Fixed bug php#77569: (Write Access Violation in DomImplementation). (Nikita, cmb) - Fixed bug php#79271 (DOMDocumentType::$childNodes is NULL). (cmb) Enchant: - Fixed bug php#79311 (enchant_dict_suggest() fails on big endian architecture). (cmb) EXIF: - Fixed bug php#79282 (Use-of-uninitialized-value in exif). (*CVE-2020-7064) (Nikita) MBstring: - Fixed bug php#79371 (mb_strtolower (UTF-32LE): stack-buffer-overflow at php_unicode_tolower_full). (CVE-2020-7065) (cmb) MySQLi: - Fixed bug php#64032 (mysqli reports different client_version). (cmb) PCRE: - Fixed bug php#79188 (Memory corruption in preg_replace/preg_replace_callback and unicode). (Nikita) PDO_ODBC: - Fixed bug php#79038 (PDOStatement::nextRowset() leaks column values). (cmb) Reflection: - Fixed bug php#79062 (Property with heredoc default value returns false for getDocComment). (Nikita) SQLite3: - Fixed bug php#79294 (::columnType() may fail after SQLite3Stmt::reset()). (cmb) Standard: - Fixed bug php#79329 (get_headers() silently truncates after a null byte). (CVE-2020-7066) (cmb) - Fixed bug php#79254 (getenv() w/o arguments not showing changes). (cmb) - Fixed bug php#79265 (Improper injection of Host header when using fopen for http requests). (Miguel Xavier Penha Neto) Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
last seen	2020-04-04
modified	2020-03-27
plugin id	134962
published	2020-03-27
reporter	This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.
source	https://www.tenable.com/plugins/nessus/134962
title	Fedora 30 : php (2020-ce5a2a7403)

NASL family	Fedora Local Security Checks
NASL id	FEDORA_2020-0BF228857A.NASL
description	PHP version 7.3.16 (19 Mar 2020) Core: - Fixed bug php#63206 (restore_error_handler does not restore previous errors mask). (Mark Plomer) DOM: - Fixed bug php#77569: (Write Access Violation in DomImplementation). (Nikita, cmb) - Fixed bug php#79271 (DOMDocumentType::$childNodes is NULL). (cmb) Enchant: - Fixed bug php#79311 (enchant_dict_suggest() fails on big endian architecture). (cmb) EXIF: - Fixed bug php#79282 (Use-of-uninitialized-value in exif). (*CVE-2020-7064) (Nikita) MBstring: - Fixed bug php#79371 (mb_strtolower (UTF-32LE): stack-buffer-overflow at php_unicode_tolower_full). (CVE-2020-7065) (cmb) MySQLi: - Fixed bug php#64032 (mysqli reports different client_version). (cmb) PCRE: - Fixed bug php#79188 (Memory corruption in preg_replace/preg_replace_callback and unicode). (Nikita) PDO_ODBC: - Fixed bug php#79038 (PDOStatement::nextRowset() leaks column values). (cmb) Reflection: - Fixed bug php#79062 (Property with heredoc default value returns false for getDocComment). (Nikita) SQLite3: - Fixed bug php#79294 (::columnType() may fail after SQLite3Stmt::reset()). (cmb) Standard: - Fixed bug php#79329 (get_headers() silently truncates after a null byte). (CVE-2020-7066) (cmb) - Fixed bug php#79254 (getenv() w/o arguments not showing changes). (cmb) - Fixed bug php#79265 (Improper injection of Host header when using fopen for http requests). (Miguel Xavier Penha Neto) Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
last seen	2020-04-04
modified	2020-03-26
plugin id	134919
published	2020-03-26
reporter	This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.
source	https://www.tenable.com/plugins/nessus/134919
title	Fedora 31 : php (2020-0bf228857a)

NASL family	Debian Local Security Checks
NASL id	DEBIAN_DLA-2188.NASL
description	Three issues have been found in php5, a server-side, HTML-embedded scripting language. CVE-2020-7064 A one byte out-of-bounds read, which could potentially lead to information disclosure or crash. CVE-2020-7066 An URL containing zero (\0) character will be truncated at it, which may cause some software to make incorrect assumptions and possibly send some information to a wrong server. CVE-2020-7067 Using a malformed url-encoded string an Out-of-Bounds read can occur. For Debian 8
last seen	2020-05-23
modified	2020-04-27
plugin id	135980
published	2020-04-27
reporter	This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.
source	https://www.tenable.com/plugins/nessus/135980
title	Debian DLA-2188-1 : php5 security update

Summary

Vulnerable Configurations

Common Weakness Enumeration (CWE)

Common Attack Pattern Enumeration and Classification (CAPEC)

Nessus

References