Multiple vulnerabilities was discovered and corrected in php :

The dba_replace function in PHP 5.2.6 and 4.x allows context-dependent attackers to cause a denial of service (file truncation) via a key with the NULL byte. NOTE: this might only be a vulnerability in limited circumstances in which the attacker can modify or add database entries but does not have permissions to truncate the file (CVE-2008-7068).

The php_openssl_apply_verification_policy function in PHP before 5.2.11 does not properly perform certificate validation, which has unknown impact and attack vectors, probably related to an ability to spoof certificates (CVE-2009-3291).

Unspecified vulnerability in PHP before 5.2.11 has unknown impact and attack vectors related to missing sanity checks around exif processing. (CVE-2009-3292)

Unspecified vulnerability in the imagecolortransparent function in PHP before 5.2.11 has unknown impact and attack vectors related to an incorrect sanity check for the color index. (CVE-2009-3293). However in Mandriva we don't use the bundled libgd source in php per default, there is a unsupported package in contrib named php-gd-bundled that eventually will get updated to pickup these fixes.

This update provides a solution to these vulnerabilities.

According to its banner, the version of PHP installed on the remote host is prior to 5.2.7. It is, therefore, affected by multiple vulnerabilities :

  - There is a buffer overflow flaw in the bundled PCRE     library that allows a denial of service attack.
    (CVE-2008-2371)

  - Multiple directory traversal vulnerabilities exist in     functions such as 'posix_access', 'chdir', and 'ftok'     that allow a remote attacker to bypass 'safe_mode'     restrictions. (CVE-2008-2665 and CVE-2008-2666).

  - A buffer overflow flaw in 'php_imap.c' may be triggered     when processing long message headers due to the use of     obsolete API calls. This can be exploited to cause a     denial of service or to execute arbitrary code.
    (CVE-2008-2829)

  - A buffer overflow in the 'imageloadfont' function in     'ext/gd/gd.c' can be triggered when a specially crafted     font is given. This can be exploited to cause a denial     of service or to execute arbitrary code. (CVE-2008-3658)

  - A buffer overflow flaw exists in PHP's internal function     'memnstr' which can be exploited by an attacker using     the delimiter argument to the 'explode' function. This     can be used to cause a denial of service or to execute     arbitrary code. (CVE-2008-3659)

  - When PHP is used as a FastCGI module, an attacker by     requesting a file whose file name extension is preceded     by multiple dots can cause a denial of service.
    (CVE-2008-3660)

  - A heap-based buffer overflow flaw in the mbstring     extension can be triggered via a specially crafted     string containing an HTML entity that is not handled     during Unicode conversion. This can be exploited to     execute arbitrary code.(CVE-2008-5557)

  - Improper initialization of global variables 'page_uid'     and 'page_gid' when PHP is used as an Apache module     allows the bypassing of security restriction due to     SAPI 'php_getuid' function overloading. (CVE-2008-5624)

  - PHP does not enforce the correct restrictions when     'safe_mode' is enabled through a 'php_admin_flag'     setting in 'httpd.conf'. This allows an attacker, by     placing a specially crafted 'php_value' entry in     '.htaccess', to able to write to arbitrary files.
    (CVE-2008-5625)

  - The 'ZipArchive::extractTo' function in the ZipArchive     extension fails to filter directory traversal sequences     from file names. An attacker can exploit this to write     to arbitrary files. (CVE-2008-5658)

  - Under limited circumstances, an attacker can cause a     file truncation to occur when calling the 'dba_replace'     function with an invalid argument. (CVE-2008-7068)

  - A buffer overflow error exists in the function     'date_from_ISO8601' function within file 'xmlrpc.c'     because user-supplied input is improperly validated.
    This can be exploited by a remote attacker to cause a     denial of service or to execute arbitrary code.
    (CVE-2014-8626)

Multiple vulnerabilities was discovered and corrected in php :

The dba_replace function in PHP 5.2.6 and 4.x allows context-dependent attackers to cause a denial of service (file truncation) via a key with the NULL byte. NOTE: this might only be a vulnerability in limited circumstances in which the attacker can modify or add database entries but does not have permissions to truncate the file (CVE-2008-7068).

The JSON_parser function (ext/json/JSON_parser.c) in PHP 5.2.x before 5.2.9 allows remote attackers to cause a denial of service (segmentation fault) via a malformed string to the json_decode API function (CVE-2009-1271).

  - Fixed upstream bug #48378 (exif_read_data() segfaults on     certain corrupted .jpeg files) (CVE-2009-2687).

The php_openssl_apply_verification_policy function in PHP before 5.2.11 does not properly perform certificate validation, which has unknown impact and attack vectors, probably related to an ability to spoof certificates (CVE-2009-3291).

Unspecified vulnerability in PHP before 5.2.11 has unknown impact and attack vectors related to missing sanity checks around exif processing. (CVE-2009-3292)

Unspecified vulnerability in the imagecolortransparent function in PHP before 5.2.11 has unknown impact and attack vectors related to an incorrect sanity check for the color index. (CVE-2009-3293)

The _gdGetColors function in gd_gd.c in PHP 5.2.11 and 5.3.0, and the GD Graphics Library 2.x, does not properly verify a certain colorsTotal structure member, which might allow remote attackers to conduct buffer overflow or buffer over-read attacks via a crafted GD file, a different vulnerability than CVE-2009-3293. NOTE: some of these details are obtained from third-party information (CVE-2009-3546).

The tempnam function in ext/standard/file.c in PHP 5.2.11 and earlier, and 5.3.x before 5.3.1, allows context-dependent attackers to bypass safe_mode restrictions, and create files in group-writable or world-writable directories, via the dir and prefix arguments (CVE-2009-3557).

The posix_mkfifo function in ext/posix/posix.c in PHP 5.2.11 and earlier, and 5.3.x before 5.3.1, allows context-dependent attackers to bypass open_basedir restrictions, and create FIFO files, via the pathname and mode arguments, as demonstrated by creating a .htaccess file (CVE-2009-3558).

PHP 5.2.11, and 5.3.x before 5.3.1, does not restrict the number of temporary files created when handling a multipart/form-data POST request, which allows remote attackers to cause a denial of service (resource exhaustion), and makes it easier for remote attackers to exploit local file inclusion vulnerabilities, via multiple requests, related to lack of support for the max_file_uploads directive (CVE-2009-4017).

The proc_open function in ext/standard/proc_open.c in PHP before 5.2.11 and 5.3.x before 5.3.1 does not enforce the (1) safe_mode_allowed_env_vars and (2) safe_mode_protected_env_vars directives, which allows context-dependent attackers to execute programs with an arbitrary environment via the env parameter, as demonstrated by a crafted value of the LD_LIBRARY_PATH environment variable (CVE-2009-4018).

The dba_replace function in PHP 5.2.6 and 4.x allows context-dependent attackers to cause a denial of service (file truncation) via a key with the NULL byte. NOTE: this might only be a vulnerability in limited circumstances in which the attacker can modify or add database entries but does not have permissions to truncate the file (CVE-2008-7068).

The php_openssl_apply_verification_policy function in PHP before 5.2.11 does not properly perform certificate validation, which has unknown impact and attack vectors, probably related to an ability to spoof certificates (CVE-2009-3291).

Unspecified vulnerability in PHP before 5.2.11 has unknown impact and attack vectors related to missing sanity checks around exif processing. (CVE-2009-3292)

Unspecified vulnerability in the imagecolortransparent function in PHP before 5.2.11 has unknown impact and attack vectors related to an incorrect sanity check for the color index. (CVE-2009-3293). However in Mandriva we don't use the bundled libgd source in php per default, there is a unsupported package in contrib named php-gd-bundled that eventually will get updated to pickup these fixes.

The php-suhosin package has been upgraded to 0.9.22 which has better support for apache vhosts.

Packages for 2008.0 are provided for Corporate Desktop 2008.0 customers

This update provides a solution to these vulnerabilities.

バナーによると、リモートホストにインストールされている PHP のバージョンは 5.2.7 より前です。そのため、以下の複数の脆弱性の影響を受けます。

  - バンドルされた PCRE ライブラリにバッファオーバーフロー欠陥があり、これによってサービス拒否攻撃が可能になります。
    （CVE-2008-2371）

  - 「posix_access」、「chdir」、「ftok」などの関数に複数のディレクトリトラバーサル脆弱性があり、リモート攻撃者は、「safe_mode」制限をバイパスできます。（CVE-2008-2665 および CVE-2008-2666）。

  - 「php_imap.c」でのバッファオーバーフロー欠陥は、旧式の API 呼び出しの使用により、長いメッセージヘッダーを処理する際にトリガされることがあります。これを悪用して、サービス拒否を引き起こすことや、任意のコードを実行することができます。
    （CVE-2008-2829）

- 「ext/gd/gd.c」の「imageloadfont」関数でのバッファオーバーフローは、特別に作り上げられたフォントが与えられたときに、トリガできます。これを悪用して、サービス拒否を引き起こすことや、任意のコードを実行することができます。（CVE-2008-3658）

  - PHP の内部関数「memnstr」にバッファオーバーフロー欠陥があり、「explode」関数に対する区切り記号引数を使用して、攻撃者がこれを悪用できます。これを悪用して、サービス拒否を引き起こすことや、任意のコードを実行することができます。（CVE-2008-3659）

  - PHP を FastCGI モジュールとして使用する場合、ファイル名の拡張子に複数のドットが先行するファイルをリクエストすることによって、攻撃者がサービス拒否を引き起こすことがあります。
    （CVE-2008-3660）

  - mbstring 拡張でのヒープベースのバッファオーバーフロー欠陥は、Unicode 変換中に処理されない HTML エンティティが含まれている、特別に作り上げられた文字列によって、トリガできます。これを悪用して、任意のコードを実行できます（CVE-2008-5557）

  - PHP が Apache モジュールとして使用されているとき、グローバル変数「page_uid」および「page_gid」の不適切な初期化により、SAPI「php_getuid」関数のオーバーロードによるセキュリティ制限のバイパスがが可能になります。（CVE-2008-5624）

  - 「safe_mode」が「httpd.conf」での「php_admin_flag」設定によって有効になっている場合、PHP は正しい制限を行いません。これにより攻撃者は、「.htaccess」に、特別に作り上げられた「php_value」エントリを配置することで、任意のファイルに書き込めます。
    （CVE-2008-5625）

  - ZipArchive 拡張の「ZipArchive::extractTo」関数は、ファイル名からのディレクトリトラバーサルシーケンスをフィルタリングできません。攻撃者は、これを悪用して、任意のファイルに
書き込めます。（CVE-2008-5658）

  - 限られた状況下で、攻撃者は、無効な引数で「dba_replace」関数を呼び出す際に、ファイルの切り捨てを引き起こせます。（CVE-2008-7068）

  - ユーザー入力の検証が不適切であるため、「xmlrpc.c」内の関数「date_from_ISO8601」にバッファオーバーフローエラーがあります。
    これをリモート攻撃者が悪用して、サービス拒否を引き起こすことや、任意のコードを実行することができます。
    （CVE-2014-8626）

根據其標題，遠端主機上安裝的 PHP 版本舊於 5.2.7。因此，該應用程式受到多個弱點影響：

  - 配套的 PCRE 程式庫中具有一個緩衝區溢位缺陷，會導致拒絕服務攻擊。
    (CVE-2008-2371)

  - 「posix_access」、「chdir」和「ftok」等函式中存在多個目錄遍歷弱點，會讓遠端攻擊者繞過「safe_mode」限制。 (CVE-2008-2665 和 CVE-2008-2666)

  - 處理長訊息標頭時，因為過時的 API 呼叫，可能會觸發「php_imap.c」中的緩衝區溢位缺陷。此缺陷可能會遭到惡意利用，進而引發拒絕服務或執行任意程式碼。
    (CVE-2008-2829)

  - 指定特製字型時，可能會觸發 'ext/gd/gd.c' 之 'imageloadfont' 函式中的緩衝區溢位。此缺陷可能會遭到惡意利用，進而引發拒絕服務或執行任意程式碼。(CVE-2008-3658)

  - PHP 的內部函式「memnstr」存在緩衝區溢位缺陷，可能會遭攻擊者對函式「explode」使用分隔符號引數而對其惡意利用。這可能用來引發拒絕服務或執行任意程式碼。(CVE-2008-3659)

  - 將 PHP 作為 FastCGI 模組使用時，攻擊者若要求副檔名前有多個點的檔案，就可以引發拒絕服務。
    (CVE-2008-3660)

  - 副檔名 mbstring 中的堆積式緩衝區溢位缺陷，可以透過包含 Unicode 轉換期間未處理的 HTML 實體之特製字串來觸發。此缺陷可能會遭到惡意利用，進而執行任意程式碼。(CVE-2008-5557)

  - 將 PHP 作為 Apache 模組使用時，由於 SAPI「php_getuid」函式多載，全域變數「page_uid」和「page_gid」的不當初始化會允許繞過安全性限制。(CVE-2008-5624)

  - 當「safe_mode」透過「httpd.conf」中的「php_admin_flag」設定啟用時，PHP 不會施行正確的限制。這會讓攻擊者在「.htaccess」中放置特製的「php_value」項目，藉此寫入任意檔案。
    (CVE-2008-5625)

  - 副檔名 ZipArchive 中的函式「ZipArchive: : extractTo」無法從檔名篩選目錄遍歷序列。攻擊者可惡意利用這個項目，藉此寫入任意檔案。(CVE-2008-5658)

  - 在有限情況下，攻擊者可以在呼叫具有無效引數的函式「dba_replace」時引發檔案截斷。(CVE-2008-7068)

  - 檔案「xmlrpc.c」中的函式「date_from_ISO8601」存在緩衝區溢位錯誤，因為使用者提供的輸入驗證不當。
    此弱點可能會遭到遠端攻擊者惡意利用，進而引發拒絕服務或執行任意程式碼。
    (CVE-2014-8626)

根据其标题栏，远程主机上安装的 PHP 版本低于 5.2.7。因此，该服务器受到多个漏洞的影响：

  - 捆绑 PCRE 库中存在允许拒绝访问攻击的缓冲区溢出缺陷。
    (CVE-2008-2371)

  -“posix_access”、“chdir”和“ftok”等函数中存在多个目录遍历漏洞，远程攻击者可利用此漏洞，绕过“safe_mode”限制（CVE-2008-2665 和 CVE-2008-2666）。

  - 处理长消息头时，由于使用过时的 API 调用，可能会触发“php_imap.c”中的缓冲区溢出缺陷。可利用此缺陷造成拒绝服务或执行任意代码。
    (CVE-2008-2829)

  -“ext/gd/gd.c”的“imageloadfont”函数中存在缓冲区溢出，当提供特别构建的字体时，可触发此漏洞。利用此漏洞，可造成拒绝服务或执行任意代码。(CVE-2008-3658)

  - PHP 内部函数“memnstr”中存在缓冲区溢出缺陷，攻击者可使用“explode”函数的分隔符参数，进而利用此漏洞。利用此漏洞，可造成拒绝服务或执行任意代码。(CVE-2008-3659)

  - PHP 用作 FastCGI 模块时，攻击者可通过请求文件扩展名前有多个点的文件，造成拒绝服务。
    (CVE-2008-3660)

  - mbstring 扩展中存在基于堆的缓冲区溢出缺陷，通过特别构建的、包含未在 Unicode 转换期间处理的 HTML 实体的字符串，可触发此漏洞。利用此漏洞，可执行任意代码。(CVE-2008-5557)

  - PHP 用作 Apache 模块时，未正确初始化全局变量“page_uid”和“page_gid”，此漏洞可导致绕过安全限制，这是 SAPI“php_getuid”函数过载所致。(CVE-2008-5624)

  - 通过“httpd.conf”中的“php_admin_flag”设置启用“safe_mode”时，PHP 不强制执行正确的限制。此问题允许攻击者通过在“.htaccess”中放置特别构建的“php_value”来写入任意文件。
    (CVE-2008-5625)

  - ZipArchive 扩展中的“ZipArchive: : extractTo”函数未能从文件名中过滤目录遍历序列。攻击者可利用此漏洞，写入任意文件。(CVE-2008-5658)

  - 在有限的情况下，攻击者可在调用具有无效参数的“dba_replace”函数时造成文件截断。(CVE-2008-7068)

  -“xmlrpc.c”文件内的“date_from_ISO8601”函数中存在缓冲区溢出错误，这是未正确验证用户提供的输入所致。
    远程攻击者可利用此缺陷造成拒绝服务或执行任意代码。
    (CVE-2014-8626)

Maksymilian Arciemowicz discovered that PHP did not properly validate arguments to the dba_replace function. If a script passed untrusted input to the dba_replace function, an attacker could truncate the database. This issue only applied to Ubuntu 6.06 LTS, 8.04 LTS, and 8.10. (CVE-2008-7068)

It was discovered that PHP's php_openssl_apply_verification_policy function did not correctly handle SSL certificates with zero bytes in the Common Name. A remote attacker could exploit this to perform a man in the middle attack to view sensitive information or alter encrypted communications. (CVE-2009-3291)

It was discovered that PHP did not properly handle certain malformed images when being parsed by the Exif module. A remote attacker could exploit this flaw and cause the PHP server to crash, resulting in a denial of service. (CVE-2009-3292)

Grzegorz Stachowiak discovered that PHP did not properly enforce restrictions in the tempnam function. An attacker could exploit this issue to bypass safe_mode restrictions. (CVE-2009-3557)

Grzegorz Stachowiak discovered that PHP did not properly enforce restrictions in the posix_mkfifo function. An attacker could exploit this issue to bypass open_basedir restrictions. (CVE-2009-3558)

Bogdan Calin discovered that PHP did not limit the number of temporary files created when handling multipart/form-data POST requests. A remote attacker could exploit this flaw and cause the PHP server to consume all available resources, resulting in a denial of service.
(CVE-2009-4017)

ATTENTION: This update changes previous PHP behaviour by limiting the number of files in a POST request to 50. This may be increased by adding a 'max_file_uploads' directive to the php.ini configuration file.

It was discovered that PHP did not properly enforce restrictions in the proc_open function. An attacker could exploit this issue to bypass safe_mode_protected_env_vars restrictions and possibly execute arbitrary code with application privileges. (CVE-2009-4018).

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.

securityfocus research reports :

A bug that leads to the emptying of the INI file contents if the database key was not found exists in PHP dba extension in versions 5.2.6, 4.4.9 and earlier.

Function dba_replace() are not filtering strings key and value. There is a possibility for the destruction of the file.

ID	名稱	產品	系列	已發布	已更新	嚴重性
41639	Mandriva Linux Security Advisory : php (MDVSA-2009:247)	Nessus	Mandriva Local Security Checks	2009/9/28	2021/1/6	high
35043	PHP 5 < 5.2.7 Multiple Vulnerabilities	Nessus	CGI abuses	2008/12/5	2024/5/28	high
43043	Mandriva Linux Security Advisory : php (MDVSA-2009:324)	Nessus	Mandriva Local Security Checks	2009/12/8	2021/1/6	high
35043	PHP 5 < 5.2.7 の複数の脆弱性	Nessus	CGI abuses	2008/12/5	2024/5/28	high
35043	php5 < 5.2.7 多個弱點	Nessus	CGI abuses	2008/12/5	2024/5/28	high
35043	PHP 5 < 5.2.7 多种漏洞	Nessus	CGI abuses	2008/12/5	2024/5/28	high
42930	Ubuntu 6.06 LTS / 8.04 LTS / 8.10 / 9.04 / 9.10 : php5 vulnerabilities (USN-862-1)	Nessus	Ubuntu Local Security Checks	2009/11/30	2021/1/19	high
38799	FreeBSD : php -- ini database truncation inside dba_replace() function (1e8031be-4258-11de-b67a-0030843d3802)	Nessus	FreeBSD Local Security Checks	2009/5/18	2021/1/6	medium

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