Vulnerabilities > CVE-2020-7064 - Out-of-bounds Read vulnerability in multiple products
Attack vector
NETWORK Attack complexity
LOW Privileges required
NONE Confidentiality impact
LOW Integrity impact
NONE Availability impact
LOW Summary
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
| 128 |
| Application | 7 | |
| OS | 3 | |
| OS | 6 | |
| OS | 1 |
Common Weakness Enumeration (CWE)
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
References
- http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00025.html
- http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00025.html
- https://bugs.php.net/bug.php?id=79282
- https://bugs.php.net/bug.php?id=79282
- https://lists.debian.org/debian-lts-announce/2020/04/msg00021.html
- https://lists.debian.org/debian-lts-announce/2020/04/msg00021.html
- https://security.netapp.com/advisory/ntap-20200403-0001/
- https://security.netapp.com/advisory/ntap-20200403-0001/
- https://usn.ubuntu.com/4330-1/
- https://usn.ubuntu.com/4330-1/
- https://usn.ubuntu.com/4330-2/
- https://usn.ubuntu.com/4330-2/
- https://www.debian.org/security/2020/dsa-4717
- https://www.debian.org/security/2020/dsa-4717
- https://www.debian.org/security/2020/dsa-4719
- https://www.debian.org/security/2020/dsa-4719
- https://www.oracle.com/security-alerts/cpujan2021.html
- https://www.oracle.com/security-alerts/cpujan2021.html
- https://www.tenable.com/security/tns-2021-14
- https://www.tenable.com/security/tns-2021-14