此 php5 更新修复以下安全问题：

- bsc#974305：libmagic 中的缓冲区溢出

- CVE-2015-8838：mysqlnd 容易遭受 BACKRONYM 攻击 (bnc#973792)。

- CVE-2015-8835：SoapClient s__call 方法遭受类型混淆问题的影响 (bnc#973351)。

- CVE-2016-3141：WDDX 反序列化中的释放后使用/双重释放可导致崩溃或可能执行代码。[bsc#969821]

- CVE-2016-3142：phar_parse_zipfile() 中的越界读取可导致崩溃。[bsc#971912]

- CVE-2014-9767：已修复解压缩 zip 文件时发生的目录遍历问题，其可导致覆盖文件。
 [bsc#971612]

- CVE-2016-3185：make_http_soap_request() 中的类型混淆漏洞可导致崩溃或可能执行代码。[bsc#971611]

Linux/Unix 主机中安装的一个或多个程序包受到一个漏洞影响，而供应商没有提供补丁程序。

  - 5.4.43之前的 PHP、 5.5.x 之前的 5.5.27] 和 5.6.x 之前的 5.6.11 中的 ext/mysqlnd/mysqlnd.c 使用客户端 SSL 选项表示 SSL 为可选，这允许中间人攻击者欺骗服务器通过明文降级攻击造成崩溃，该问题与 CVE-2015-3152相关。 (CVE-2015-8838)

请注意，Nessus 依赖供应商报告的程序包是否存在进行判断。

Linux/Unix 主機上安裝了一個或多個受到弱點影響的套件，且供應商未提供可用的修補程式。

  - PHP [] 之前的 5.4.43、 5.5.x 之前的 5.5.27] 以及 5.6.x 之前的 5.6.11 中的 ext/mysqlnd/mysqlnd.c 使用用戶端 SSL 選項表示 SSL 是選用的，進而允許攔截式攻擊者偽造透過純文字降級攻擊，這是與 CVE-2015-3152相關的問題。 (CVE-2015-8838)

請注意，Nessus 依賴供應商報告的套件存在。

此 php5 更新可修正下列安全性問題：

- bsc#974305：libmagic 中的緩衝區溢位

- CVE-2015-8838：mysqlnd 容易遭受 BACKRONYM 攻擊 (bnc#973792)。

- CVE-2015-8835：SoapClient s__call 方法會受到類型混淆問題影響 (bnc#973351)。

- CVE-2016-3141：WDDX 還原序列化中的釋放後使用 / 重複釋放問題可導致當機或可能執行程式碼。[bsc#969821]

- CVE-2016-3142：phar_parse_zipfile() 中的超出邊界讀取問題可導致當機。[bsc#971912]

- CVE-2014-9767：已修正解壓縮 zip 檔案時發生的目錄遊走問題，其可導致覆寫檔案。
 [bsc#971612]

- CVE-2016-3185：make_http_soap_request() 中的類型混淆弱點可導致當機或可能執行程式碼。[bsc#971611]

Versions of PHP 5.5.x earlier than 5.5.27, or 5.6.x earlier than 5.6.11 are vulnerable to the following issues :

 A double-free flaw exists in zend_vm_execute.h due to improper handling of certain code. An attacker can exploit this flaw to crash a PHP application, resulting in a denial of service condition.
 - A flaw exists in the parse_ini_file() and parse_ini_string() functions. Due to improper handling of strings that contain a line feed followed by an escape character, an attacker can exploit this to crash a PHP application, resulting in a denial of service condition.

According to its banner, the version of PHP 5.6.x running on the remote web server is prior to 5.6.11. It is, therefore, affected by multiple vulnerabilities.
 - A security feature bypass vulnerability, known as 'BACKRONYM', exists due to a failure to properly enforce the requirement of an SSL/TLS connection when the --ssl client option is used. A man-in-the-middle attacker can exploit this flaw to coerce the client to downgrade to an unencrypted connection, allowing the attacker to disclose data from the database or manipulate database queries. (CVE-2015-3152)
 - A flaw in the phar_convert_to_other function in ext/phar/phar_object.c could allow a remote attacker to cause a denial of service. (CVE-2015-5589)
 - A Stack-based buffer overflow in the phar_fix_filepath function in ext/phar/phar.c could allow a remote attacker to cause a denial of service. (CVE-2015-5590)
 - A flaw exists in the PHP Connector/C component due to a failure to properly enforce the requirement of an SSL/TLS connection when the --ssl client option is used.
 - A man-in-the-middle attacker can exploit this to downgrade the connection to plain HTTP when HTTPS is expected. (CVE-2015-8838)
 - A use-after-free error exists in the spl_recursive_it_move_forward_ex() function. An attacker can exploit this to dereference already freed memory, potentially allowing the execution of arbitrary code.
 - A use-after-free error exists in the sqlite3SafetyCheckSickOrOk() function. An attacker can exploit this to dereference already freed memory, potentially allowing the execution of arbitrary code.
 - The '!' character is not treated as a special character when delayed variable substitution is enabled. The functions escapeshellcmd() and escapeshellarg() are unable to properly sanitize arguments containing '!'.
 - An attacker can exploit this to execute arbitrary commands.
 - A double-free flaw exists in zend_vm_execute.h due to improper handling of certain code. An attacker can exploit this flaw to crash a PHP application, resulting in a denial of service condition.

Versions of PHP 5.5.x prior to 5.5.37, or 5.6.x prior to 5.6.23, or 7.0.x prior to 7.0.8 are vulnerable to the following issues :

 - PHP 'ext/mysqlnd/mysqlnd.c' contains a flaw that is due to the program failing to properly enforce the requirement of an SSL/TLS connection when the '--ssl client' option is used. This may allow a MitM (Man-in-the-Middle) attacker to downgrade the connection to plain HTTP when expected to be HTTPS. (CVE-2015-8838)
 - An integer overflow condition exists in the 'getFromIndex()'' and 'getFromName()' methods of 'ZipArchive'. The issue is triggered as user-supplied input is not properly validated when handling a specially crafted ZIP file. This may allow an attacker to cause a heap-based buffer overflow, resulting in a denial of service or potentially allowing the execution of arbitrary code. (CVE-2016-3078)
 - An XXE (Xml eXternal Entity) injection and expansion flaw affects the 'libxml_disable_entity_loader()' function in the source file 'ext/libxml/libxml.c' in PHP-FPM that is triggered during the parsing of XML data. The issue is due to an incorrectly configured XML parser accepting XML external entities from an untrusted source. By sending specially crafted XML data, a remote attacker can gain access to sensitive information or cause a denial of service. (CVE-2015-8866)
 - An integer overflow condition exists in the 'php_filter_encode_url()' function in 'ext/filter/sanitizing_filters.c'. The issue is triggered as user-supplied input is not properly validated. This may allow a remote attacker to cause a heap-based buffer overflow, resulting in a denial of service or potentially allowing the execution of arbitrary code. (CVE-2016-4345)
 - An integer overflow condition exists in 'ext/standard/string.c'. The issue is triggered as user-supplied input is not properly validated. This may allow a remote attacker to cause a heap-based buffer overflow, resulting in a denial of service or potentially allowing the execution of arbitrary code. (CVE-2016-4346)
 - The program contains an out-of-bounds read flaw in 'ext/intl/grapheme/grapheme_string.c' that is triggered when handling negative offsets in 'zif_grapheme_stripos'. This may allow a remote attacker to crash a process utilizing the language or potentially disclose memory contents. (CVE-2016-4540, CVE-2016-4541)
 - An out-of-bounds read flaw exists in the 'php_str2num()' function in 'ext/bcmath/bcmath.c' that is triggered when accepting negative scales. This may allow a remote attacker to crash a process utilizing the language or potentially disclose memory contents. (CVE-2016-4537, CVE-2016-4538)
 - An out-of-bounds read flaw exists in the 'exif_read_data()' function in 'ext/exif/exif.c' that is triggered when handling exif headers. This may allow a remote attacker to crash a process utilizing the language or potentially disclose memory contents. (CVE-2016-4542, CVE-2016-4543, CVE-2016-4544)
 - A flaw in the 'xml_parse_into_struct()' function in 'ext/xml/xml.c' is triggered during the handling of a specially crafted XML content. This may allow a remote attacker to cause a denial of service. (CVE-2016-4539)
 - A double-free flaw exists in the 'php_formatted_print()' function in 'ext/standard/formatted_print.c'. This may allow an attacker to have an unspecified impact. (CVE-2015-8880)
 - A flaw exists in 'main/php_open_temporary_file.c' that is triggered as thread safety is not ensured during the handling of temporary directories. This may allow a remote attacker to cause a denial of service. (CVE-2015-8878)
 - An integer overflow flaw exists in the 'php_html_entities()' and 'php_filter_full_special_chars()' functions in 'ext/standard/html.c' that is triggered as input is not properly validated. This may allow a remote attacker to have an unspecified impact. No further details have been provided. (CVE-2016-5094, CVE-2016-5095)
 - An integer underflow issue exists in 'ext/standard/file.c' that is triggered as input is not properly validated. This may allow a remote attacker to cause a NULL write and cause a process linked against PHP to crash. (CVE-2016-5096)
 - An out-of-bounds read flaw exists in the '_gdContributionsCalc()' function in 'ext/gd/libgd/gd_interpolation.c'. This may allow a context-dependent attacker to crash a process linked against the library or potentially disclose memory contents. (CVE-2013-7456)
 - An out-of-bounds read flaw exists in the 'get_icu_value_internal()' function within 'ext/intl/locale/locale_methods.c' that is triggered when handling user-supplied input. This may allow a remote attacker to crash a process linked against the library or potentially disclose memory contents. (CVE-2016-5093)
 - A flaw exists that allows a cross-site scripting (XSS) attack. This flaw exists because the 'header()' function does not filter input passed via HTTP headers before returning it to users. This may allow a remote attacker to create a specially crafted request that would execute arbitrary script code in a user's browser session within the trust relationship between their browser and the server. (CVE-2015-8935)
 - A use-after-free error exists in the garbage collection algorithm in 'ext/zip/php_zip.c'. This may allow a remote attacker to dereference already freed memory and potentially execute arbitrary code. (CVE-2016-5773)
 - An integer overflow condition exists in the 'json_decode()' and 'json_utf8_to_utf16()' functions in 'ext/standard/php_smart_str.h'. The issue is triggered as user-supplied input is not properly validated. This may allow a remote attacker to cause a heap-based buffer overflow, causing a denial of service in a process linked against PHP or potentially allowing the execution of arbitrary code.
 - An out-of-bounds read flaw exists within the 'pass2_no_dither()' function inside 'ext/gd/libgd/gd_topal.c' that may allow a remote attacker to crash a process utilizing PHP or potentially disclose memory contents.
 - An integer overflow condition exists in 'ext/standard/string.c'. The issue is triggered as user-supplied input is not properly validated when handling string lengths. This may allow a remote attacker to have an unspecified impact.
 - A double-free flaw exists within the '_php_mb_regex_ereg_replace_exec()' function inside 'ext/mbstring/php_mbregex.c' that is triggered when handling a failed callback execution. This may allow a remote attacker to potentially execute arbitrary code. (CVE-2016-5768)
 - An integer overflow condition exists in 'ext/spl/spl_directory.c'. The issue is triggered by an 'int/size_t' confusion issue. This may allow a remote attacker to have an unspecified impact. (CVE-2016-5770)
 - An integer overflow condition exists in 'ext/mcrypt/mcrypt.c'. The issue is triggered as user-supplied input is not properly validated when handling data values. This may allow a remote attacker to cause a heap-based buffer overflow, resulting in a denial of service in a process linked against PHP or potentially allowing the execution of arbitrary code. (CVE-2016-5769)
 - An integer overflow condition exists within the 'nl2br()' function inside 'ext/standard/string.c'. The issue is triggered as user-supplied input is not properly validated when handling new_length values. This may allow a remote attacker to have an unspecified impact.
 - An integer overflow condition exists within multiple functions in 'ext/standard/string.c'. The issue is triggered as user-supplied input is not properly validated when handling string values. This may allow a remote attacker to have an unspecified impact.
 - A double-free flaw within the 'php_wddx_process_data()' function inside 'ext/wddx/wddx.c' that is triggered during the handling of specially crafted XML content. This may allow a remote attacker to potentially execute arbitrary code. (CVE-2016-5772)
 - An integer overflow condition exists witin the 'gdImagePaletteToTrueColor()' function inside 'ext/gd/libgd/gd.c'. The issue is triggered as user-supplied input is not properly validated. This may allow a remote attacker to cause a heap-based buffer overflow, resulting in a denial of service in a process linked against PHP or potentially allowing the execution of arbitrary code. (CVE-2016-5767)
 - An invalid free flaw exists within the 'phar_extract_file()' function inside 'ext/phar/phar_object.c'. This may allow a remote attacker to have an unspecified impact. (CVE-2016-4473)
 - An integer overflow condition exists within the '_gd2GetHeader()' function inside 'ext/gd/libgd/gd_gd2.c'. The issue is triggered as user-supplied input is not properly validated. This may allow a remote attacker to cause a heap-based buffer overflow, resulting in a denial of service in a process linked against PHP or potentially allowing the execution of arbitrary code. (CVE-2016-5766)
 - A use-after-free error exists within the garbage collection algorithm inside 'ext/spl/spl_array.c'. This may allow a remote attacker to dereference already freed memory and potentially execute arbitrary code. (CVE-2016-5771)

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
90772	openSUSE 安全更新：php5 (openSUSE-2016-516)	Nessus	SuSE Local Security Checks	2016/4/28	2021/1/19	critical
219216	Linux Distros 未修补的漏洞: CVE-2015-8838	Nessus	Misc.	2025/3/4	2025/3/4	medium
93161	SUSE SLES11 安全更新：php53 (SUSE-SU-2016:1638-1) (BACKRONYM)	Nessus	SuSE Local Security Checks	2016/8/29	2021/1/19	critical
219216	Linux Distros 未修補弱點：CVE-2015-8838	Nessus	Misc.	2025/3/4	2025/3/4	medium
90772	openSUSE 安全性更新：php5 (openSUSE-2016-516)	Nessus	SuSE Local Security Checks	2016/4/28	2021/1/19	critical
93161	SUSE SLES11 安全性更新：php53 (SUSE-SU-2016:1638-1) (BACKRONYM)	Nessus	SuSE Local Security Checks	2016/8/29	2021/1/19	critical
8955	PHP 5.5.x < 5.5.27 / 5.6.x < 5.6.11 Multiple Vulnerabilities	Nessus Network Monitor	Web Servers	2015/10/7	2019/3/6	high
8954	PHP 5.6.10 < 5.6.11 Multiple Vulnerabilities (BACKRONYM)	Nessus Network Monitor	Web Servers	2015/10/7	2019/3/6	high
9393	PHP 5.5.x < 5.5.37 / 5.6.x < 5.6.23 / 7.0.x < 7.0.8 Multiple Vulnerabilities	Nessus Network Monitor	Web Servers	2016/7/13	2019/3/6	high

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