Vulnerabilities > CVE-2016-4346 - Integer Overflow or Wraparound vulnerability in multiple products
Attack vector
NETWORK Attack complexity
LOW Privileges required
NONE Confidentiality impact
HIGH Integrity impact
HIGH Availability impact
HIGH Summary
Integer overflow in the str_pad function in ext/standard/string.c in PHP before 7.0.4 allows remote attackers to cause a denial of service or possibly have unspecified other impact via a long string, leading to a heap-based buffer overflow.
Vulnerable Configurations
| Part | Description | Count |
|---|---|---|
| Application | 24 | |
| OS | 2 |
Common Weakness Enumeration (CWE)
Common Attack Pattern Enumeration and Classification (CAPEC)
- Forced Integer Overflow This attack forces an integer variable to go out of range. The integer variable is often used as an offset such as size of memory allocation or similarly. The attacker would typically control the value of such variable and try to get it out of range. For instance the integer in question is incremented past the maximum possible value, it may wrap to become a very small, or negative number, therefore providing a very incorrect value which can lead to unexpected behavior. At worst the attacker can execute arbitrary code.
Nessus
NASL family SuSE Local Security Checks NASL id OPENSUSE-2016-613.NASL description This update for libqt5-qtbase fixes the following issues : - boo#865241: disable RC4 based ciphers which are now considered insecure The following non-security bugs were fixed : - boo#957006: dolphin freeze when opening a folder containing symlinks to special files last seen 2020-06-05 modified 2016-03-03 plugin id 89093 published 2016-03-03 reporter This script is Copyright (C) 2016-2020 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/89093 title openSUSE Security Update : libqt5-qtbase (openSUSE-2016-613) NASL family SuSE Local Security Checks NASL id SUSE_SU-2016-1638-1.NASL description This update for php53 to version 5.3.17 fixes the following issues : These security issues were fixed : - CVE-2016-5093: get_icu_value_internal out-of-bounds read (bnc#982010). - CVE-2016-5094: Don last seen 2020-06-01 modified 2020-06-02 plugin id 93161 published 2016-08-29 reporter This script is Copyright (C) 2016-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/93161 title SUSE SLES11 Security Update : php53 (SUSE-SU-2016:1638-1) (BACKRONYM) NASL family SuSE Local Security Checks NASL id SUSE_SU-2016-1504-1.NASL description This update for php5 fixes the following issues : Security issues fixed : - CVE-2016-4346: heap overflow in ext/standard/string.c (bsc#977994) - CVE-2016-4342: heap corruption in tar/zip/phar parser (bsc#977991) - CVE-2016-4537, CVE-2016-4538: bcpowmod accepts negative scale causing heap buffer overflow corrupting _one_ definition (bsc#978827) - CVE-2016-4539: Malformed input causes segmentation fault in xml_parse_into_struct() function (bsc#978828) - CVE-2016-4540, CVE-2016-4541: Out-of-bounds memory read in zif_grapheme_stripos when given negative offset (bsc#978829) - CVE-2016-4542, CVE-2016-4543, CVE-2016-4544: Out-of-bounds heap memory read in exif_read_data() caused by malformed input (bsc#978830) - CVE-2015-4116: Use-after-free vulnerability in the spl_ptr_heap_insert function (bsc#980366) - CVE-2015-8873: Stack consumption vulnerability in Zend/zend_exceptions.c (bsc#980373) - CVE-2015-8874: Stack consumption vulnerability in GD (bsc#980375) 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 2020-03-24 modified 2019-01-02 plugin id 119978 published 2019-01-02 reporter This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/119978 title SUSE SLES12 Security Update : php5 (SUSE-SU-2016:1504-1) NASL family CGI abuses NASL id PHP_7_0_4.NASL description According to its banner, the version of PHP running on the remote web server is 7.0.x prior to 7.0.4. It is, therefore, affected by multiple vulnerabilities : - A type confusion error exists in file ext/soap/php_http.c in the make_http_soap_request() function when handling cookie data. An unauthenticated, remote attacker can exploit this to execute arbitrary code. (CVE-2016-3185) - Multiple integer overflow conditions exist in file ext/xml/xml.c in the xml_utf8_encode functions due to improper validation of user-supplied input. An unauthenticated, remote attacker can exploit these to cause a heap-based buffer overflow, resulting in a denial of service or the execution of arbitrary code. (CVE-2016-4344) - An integer overflow condition exists in the php_filter_encode_url() function due to improper validation of user-supplied input. A remote attacker can exploit this to cause a heap-based buffer overflow, resulting in a denial of service or th execution of arbitrary code. (CVE-2016-4345) - An overflow condition exists in the xml_utf8_encode functions due to improper validation of user-supplied input. A remote attacker can exploit this to cause a heap-based buffer overflow, resulting in a denial of service condition or the execution of arbitrary code. (CVE-2016-4346) - A flaw exists when handling the third call while running function.forward-static-call.php. An unauthenticated, remote attacker can exploit this to cause a denial of service by crashing the interpreter. - An integer overflow condition exists in file ext/standard/string.c in the php_implode() function due to improper validation of user-supplied input. An unauthenticated, remote attacker can exploit this to cause a heap-based buffer overflow, resulting in a denial of service or the execution of arbitrary code. - An integer overflow condition exists in file ext/standard/string.c in the zend_string_alloc() function due to improper validation of user-supplied input. An unauthenticated, remote attacker can exploit this to execute arbitrary code. - A stack corruption issue exists when handling certain Magento2 commands that allows an unauthenticated, remote attacker to cause a denial of service. - A flaw exists in file sapi/cli/php_cli_server.c due to the built-in HTTP server not properly restricting file requests. An unauthenticated, remote attacker can exploit this to access arbitrary files. - A use-after-free error exists in Zend Opcache when updating cached directory names that have been cached in the current working directory. An unauthenticated, remote attacker can exploit this to deference already freed memory, resulting in the execution of arbitrary code. - A NULL pointer dereference flaw exists in file ext/zip/php_zip.c in the Zip::ExtractTo() method that allows an unauthenticated, remote attacker to cause a denial of service. Note that Nessus has not tested for these issues but has instead relied only on the application last seen 2020-06-01 modified 2020-06-02 plugin id 90009 published 2016-03-17 reporter This script is Copyright (C) 2016-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/90009 title PHP 7.0.x < 7.0.4 Multiple Vulnerabilities NASL family SuSE Local Security Checks NASL id OPENSUSE-2016-696.NASL description This update for php5 fixes the following issues : Security issues fixed : - CVE-2016-4346: heap overflow in ext/standard/string.c (bsc#977994) - CVE-2016-4342: heap corruption in tar/zip/phar parser (bsc#977991) - CVE-2016-4537, CVE-2016-4538: bcpowmod accepts negative scale causing heap buffer overflow corrupting _one_ definition (bsc#978827) - CVE-2016-4539: Malformed input causes segmentation fault in xml_parse_into_struct() function (bsc#978828) - CVE-2016-4540, CVE-2016-4541: Out-of-bounds memory read in zif_grapheme_stripos when given negative offset (bsc#978829) - CVE-2016-4542, CVE-2016-4543, CVE-2016-4544: Out-of-bounds heap memory read in exif_read_data() caused by malformed input (bsc#978830) - CVE-2015-4116: Use-after-free vulnerability in the spl_ptr_heap_insert function (bsc#980366) - CVE-2015-8873: Stack consumption vulnerability in Zend/zend_exceptions.c (bsc#980373) - CVE-2015-8874: Stack consumption vulnerability in GD (bsc#980375) This update was imported from the SUSE:SLE-12:Update update project. last seen 2020-06-05 modified 2016-06-09 plugin id 91531 published 2016-06-09 reporter This script is Copyright (C) 2016-2020 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/91531 title openSUSE Security Update : php5 (openSUSE-2016-696) NASL family SuSE Local Security Checks NASL id SUSE_SU-2016-1581-1.NASL description This update for php53 fixes the following issues : - CVE-2016-5093: A get_icu_value_internal out-of-bounds read could crash the php interpreter (bsc#982010) - CVE-2016-5094,CVE-2016-5095: Don last seen 2020-06-01 modified 2020-06-02 plugin id 91665 published 2016-06-17 reporter This script is Copyright (C) 2016-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/91665 title SUSE SLES11 Security Update : php53 (SUSE-SU-2016:1581-1)