Vulnerabilities > CVE-2015-8873 - Improper Input Validation vulnerability in multiple products
Attack vector
NETWORK Attack complexity
LOW Privileges required
NONE Confidentiality impact
NONE Integrity impact
NONE Availability impact
HIGH Summary
Stack consumption vulnerability in Zend/zend_exceptions.c in PHP before 5.4.44, 5.5.x before 5.5.28, and 5.6.x before 5.6.12 allows remote attackers to cause a denial of service (segmentation fault) via recursive method calls.
Vulnerable Configurations
Common Weakness Enumeration (CWE)
Common Attack Pattern Enumeration and Classification (CAPEC)
- Buffer Overflow via Environment Variables This attack pattern involves causing a buffer overflow through manipulation of environment variables. Once the attacker finds that they can modify an environment variable, they may try to overflow associated buffers. This attack leverages implicit trust often placed in environment variables.
- Server Side Include (SSI) Injection An attacker can use Server Side Include (SSI) Injection to send code to a web application that then gets executed by the web server. Doing so enables the attacker to achieve similar results to Cross Site Scripting, viz., arbitrary code execution and information disclosure, albeit on a more limited scale, since the SSI directives are nowhere near as powerful as a full-fledged scripting language. Nonetheless, the attacker can conveniently gain access to sensitive files, such as password files, and execute shell commands.
- Cross Zone Scripting An attacker is able to cause a victim to load content into their web-browser that bypasses security zone controls and gain access to increased privileges to execute scripting code or other web objects such as unsigned ActiveX controls or applets. This is a privilege elevation attack targeted at zone-based web-browser security. In a zone-based model, pages belong to one of a set of zones corresponding to the level of privilege assigned to that page. Pages in an untrusted zone would have a lesser level of access to the system and/or be restricted in the types of executable content it was allowed to invoke. In a cross-zone scripting attack, a page that should be assigned to a less privileged zone is granted the privileges of a more trusted zone. This can be accomplished by exploiting bugs in the browser, exploiting incorrect configuration in the zone controls, through a cross-site scripting attack that causes the attackers' content to be treated as coming from a more trusted page, or by leveraging some piece of system functionality that is accessible from both the trusted and less trusted zone. This attack differs from "Restful Privilege Escalation" in that the latter correlates to the inadequate securing of RESTful access methods (such as HTTP DELETE) on the server, while cross-zone scripting attacks the concept of security zones as implemented by a browser.
- Cross Site Scripting through Log Files An attacker may leverage a system weakness where logs are susceptible to log injection to insert scripts into the system's logs. If these logs are later viewed by an administrator through a thin administrative interface and the log data is not properly HTML encoded before being written to the page, the attackers' scripts stored in the log will be executed in the administrative interface with potentially serious consequences. This attack pattern is really a combination of two other attack patterns: log injection and stored cross site scripting.
- Command Line Execution through SQL Injection An attacker uses standard SQL injection methods to inject data into the command line for execution. This could be done directly through misuse of directives such as MSSQL_xp_cmdshell or indirectly through injection of data into the database that would be interpreted as shell commands. Sometime later, an unscrupulous backend application (or could be part of the functionality of the same application) fetches the injected data stored in the database and uses this data as command line arguments without performing proper validation. The malicious data escapes that data plane by spawning new commands to be executed on the host.
Nessus
NASL family Ubuntu Local Security Checks NASL id UBUNTU_USN-3045-1.NASL description It was discovered that PHP incorrectly handled certain SplMinHeap::compare operations. A remote attacker could use this issue to cause PHP to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. (CVE-2015-4116) It was discovered that PHP incorrectly handled recursive method calls. A remote attacker could use this issue to cause PHP to crash, resulting in a denial of service. This issue only affected Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. (CVE-2015-8873) It was discovered that PHP incorrectly validated certain Exception objects when unserializing data. A remote attacker could use this issue to cause PHP to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. (CVE-2015-8876) It was discovered that PHP header() function performed insufficient filtering for Internet Explorer. A remote attacker could possibly use this issue to perform a XSS attack. This issue only affected Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. (CVE-2015-8935) It was discovered that PHP incorrectly handled certain locale operations. An attacker could use this issue to cause PHP to crash, resulting in a denial of service. This issue only affected Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. (CVE-2016-5093) It was discovered that the PHP php_html_entities() function incorrectly handled certain string lengths. A remote attacker could use this issue to cause PHP to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. (CVE-2016-5094, CVE-2016-5095) It was discovered that the PHP fread() function incorrectly handled certain lengths. An attacker could use this issue to cause PHP to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. (CVE-2016-5096) It was discovered that the PHP FastCGI Process Manager (FPM) SAPI incorrectly handled memory in the access logging feature. An attacker could use this issue to cause PHP to crash, resulting in a denial of service, or possibly expose sensitive information. This issue only affected Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. (CVE-2016-5114) It was discovered that PHP would not protect applications from contents of the HTTP_PROXY environment variable when based on the contents of the Proxy header from HTTP requests. A remote attacker could possibly use this issue in combination with scripts that honour the HTTP_PROXY variable to redirect outgoing HTTP requests. (CVE-2016-5385) Hans Jerry Illikainen discovered that the PHP bzread() function incorrectly performed error handling. A remote attacker could use this issue to cause PHP to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2016-5399) It was discovered that certain PHP multibyte string functions incorrectly handled memory. A remote attacker could use this issue to cause PHP to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 14.04 LTS. (CVE-2016-5768) It was discovered that the PHP Mcrypt extension incorrectly handled memory. A remote attacker could use this issue to cause PHP to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. (CVE-2016-5769) It was discovered that the PHP garbage collector incorrectly handled certain objects when unserializing malicious data. A remote attacker could use this issue to cause PHP to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue was only addressed in Ubuntu Ubuntu 14.04 LTS. (CVE-2016-5771, CVE-2016-5773) It was discovered that PHP incorrectly handled memory when unserializing malicious xml data. A remote attacker could use this issue to cause PHP to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. (CVE-2016-5772) It was discovered that the PHP php_url_parse_ex() function incorrectly handled string termination. A remote attacker could use this issue to cause PHP to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. (CVE-2016-6288) It was discovered that PHP incorrectly handled path lengths when extracting certain Zip archives. A remote attacker could use this issue to cause PHP to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2016-6289) It was discovered that PHP incorrectly handled session deserialization. A remote attacker could use this issue to cause PHP to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2016-6290) It was discovered that PHP incorrectly handled exif headers when processing certain JPEG images. A remote attacker could use this issue to cause PHP to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2016-6291, CVE-2016-6292) It was discovered that PHP incorrectly handled certain locale operations. A remote attacker could use this issue to cause PHP to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2016-6294) It was discovered that the PHP garbage collector incorrectly handled certain objects when unserializing SNMP data. A remote attacker could use this issue to cause PHP to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 14.04 LTS and Ubuntu 16.04 LTS. (CVE-2016-6295) It was discovered that the PHP xmlrpc_encode_request() function incorrectly handled certain lengths. An attacker could use this issue to cause PHP to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2016-6296) It was discovered that the PHP php_stream_zip_opener() function incorrectly handled memory. An attacker could use this issue to cause PHP to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2016-6297). 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 2020-06-01 modified 2020-06-02 plugin id 92699 published 2016-08-03 reporter Ubuntu Security Notice (C) 2016-2019 Canonical, Inc. / NASL script (C) 2016-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/92699 title Ubuntu 12.04 LTS / 14.04 LTS / 16.04 LTS : php5, php7.0 vulnerabilities (USN-3045-1) (httpoxy) NASL family SuSE Local Security Checks NASL id OPENSUSE-2016-703.NASL description This update for php5 fixes the following issues : - CVE-2013-7456: imagescale out-of-bounds read (bnc#982009). - CVE-2016-5093: get_icu_value_internal out-of-bounds read (bnc#982010). - CVE-2016-5094: Don last seen 2020-06-05 modified 2016-06-14 plugin id 91585 published 2016-06-14 reporter This script is Copyright (C) 2016-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/91585 title openSUSE Security Update : php5 (openSUSE-2016-703) 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 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 F5 Networks Local Security Checks NASL id F5_BIGIP_SOL91084571.NASL description Stack consumption vulnerability in Zend/zend_exceptions.c in PHP before 5.4.44, 5.5.x before 5.5.28, and 5.6.x before 5.6.12 allows remote attackers to cause a denial of service (segmentation fault) via recursive method calls. (CVE-2015-8873) last seen 2020-06-01 modified 2020-06-02 plugin id 92709 published 2016-08-04 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/92709 title F5 Networks BIG-IP : PHP vulnerability (K91084571) 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) NASL family CGI abuses NASL id PHP_5_5_28.NASL description According to its banner, the version of PHP running on the remote web server is 5.5.x prior to 5.5.28. It is, therefore, affected by multiple vulnerabilities : - Multiple use-after-free errors exist in spl_array.c, spl_observer.c, and spl_dllist.c due to improper sanitization of input to the unserialize() function. An attacker can exploit these issues, by using a specially crafted SplDoublyLinkedList, SplArrayObject, or SplObjectStorage object, to deference freed memory and thus execute arbitrary code. (CVE-2015-6831) - A dangling pointer error exists in file spl_array.c due to improper sanitization of input to the unserialize() function. An attacker can exploit this, by using a specially crafted SplDoublyLinkedList object, to gain control over a deallocated pointer and thus execute arbitrary code. (CVE-2015-6832) - A path traversal flaw exists in file phar_object.c due to improper sanitization of user-supplied input. An attacker can exploit this to write arbitrary files. (CVE-2015-6833) - A type confusion flaw exists in the serialize_function_call() function in soap.c due to improper validation of input passed via the header field. A remote attacker can exploit this to execute arbitrary code. (CVE-2015-6836) - Multiple type confusion flaws exist in the _call() method in file php_http.c when handling calls for zend_hash_get_current_key or last seen 2020-06-01 modified 2020-06-02 plugin id 85299 published 2015-08-11 reporter This script is Copyright (C) 2015-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/85299 title PHP 5.5.x < 5.5.28 Multiple Vulnerabilities NASL family Huawei Local Security Checks NASL id EULEROS_SA-2019-1543.NASL description According to the versions of the php packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : - A flaws was discovered in the way PHP performed object unserialization. Specially crafted input processed by the unserialize() function could cause a PHP application to crash or, possibly, execute arbitrary code.(CVE-2014-8142) - It was found that certain PHP functions did not properly handle file names containing a NULL character. A remote attacker could possibly use this flaw to make a PHP script access unexpected files and bypass intended file system access restrictions.(CVE-2015-4026) - A flaw was discovered in the way PHP performed object unserialization. Specially crafted input processed by the unserialize() function could cause a PHP application to crash or, possibly, execute arbitrary code.(CVE-2015-6834) - It was found that certain PHP functions did not properly handle file names containing a NULL character. A remote attacker could possibly use this flaw to make a PHP script access unexpected files and bypass intended file system access restrictions.(CVE-2015-4025) - An integer overflow flaw was found in the way custom objects were unserialized. Specially crafted input processed by the unserialize() function could cause a PHP application to crash.(CVE-2014-3669) - It was found that PHP move_uploaded_file() function did not properly handle file names with a NULL character. A remote attacker could possibly use this flaw to make a PHP script access unexpected files and bypass intended file system access restrictions.(CVE-2015-2348) - An integer overflow flaw leading to a heap-based buffer overflow was found in the way PHP last seen 2020-06-01 modified 2020-06-02 plugin id 124996 published 2019-05-14 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/124996 title EulerOS Virtualization 3.0.1.0 : php (EulerOS-SA-2019-1543)
Redhat
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References
- http://git.php.net/?p=php-src.git%3Ba=commit%3Bh=4d2278143a08b7522de9471d0f014d7357c28fea
- http://git.php.net/?p=php-src.git%3Ba=commit%3Bh=4d2278143a08b7522de9471d0f014d7357c28fea
- http://lists.opensuse.org/opensuse-updates/2016-06/msg00027.html
- http://lists.opensuse.org/opensuse-updates/2016-06/msg00027.html
- http://php.net/ChangeLog-5.php
- http://php.net/ChangeLog-5.php
- http://rhn.redhat.com/errata/RHSA-2016-2750.html
- http://rhn.redhat.com/errata/RHSA-2016-2750.html
- https://bugs.php.net/bug.php?id=69793
- https://bugs.php.net/bug.php?id=69793