ext/mysqlnd/mysqlnd.c in PHP before 5.4.43, 5.5.x before 5.5.27, and 5.6.x before 5.6.11 uses a client SSL option to mean that SSL is optional, which allows man-in-the-middle attackers to spoof servers via a cleartext-downgrade attack, a related issue to CVE-2015-3152.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - ext/mysqlnd/mysqlnd.c in PHP before 5.4.43, 5.5.x before 5.5.27, and 5.6.x before 5.6.11 uses a client SSL     option to mean that SSL is optional, which allows man-in-the-middle attackers to spoof servers via a     cleartext-downgrade attack, a related issue to CVE-2015-3152. (CVE-2015-8838)

Note that Nessus relies on the presence of the package as reported by the vendor.

According to the versions of the php packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - ext/mysqlnd/mysqlnd.c in PHP before 5.4.43, 5.5.x     before 5.5.27, and 5.6.x before 5.6.11 uses a client     SSL option to mean that SSL is optional, which allows     man-in-the-middle attackers to spoof servers via a     cleartext-downgrade attack, a related issue to     CVE-2015-3152.(CVE-2015-8838)

  - In PHP versions 7.3.x below 7.3.26, 7.4.x below 7.4.14     and 8.0.0, when validating URL with functions like     filter_var($url, FILTER_VALIDATE_URL), PHP will accept     an URL with invalid password as valid URL. This may     lead to functions that rely on URL being valid to     mis-parse the URL and produce wrong data as components     of the URL.(CVE-2020-7071)

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.

According to the versions of the php packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - ext/mysqlnd/mysqlnd.c in PHP before 5.4.43, 5.5.x     before 5.5.27, and 5.6.x before 5.6.11 uses a client     SSL option to mean that SSL is optional, which allows     man-in-the-middle attackers to spoof servers via a     cleartext-downgrade attack, a related issue to     CVE-2015-3152.(CVE-2015-8838)

  - 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)

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.

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 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.

Note that the scanner has not tested for these issues but has instead relied only on the application's self-reported version number.

This update for php5 fixes the following security issues :

  - CVE-2015-8838: mysqlnd was vulnerable to BACKRONYM     (bnc#973792).

  - CVE-2015-8835: SoapClient s_call method suffered from a     type confusion issue that could have lead to crashes     [bsc#973351]

  - CVE-2016-2554: A NULL pointer dereference in     phar_get_fp_offset could lead to crashes. [bsc#968284]     Note: we do not ship the phar extension currently, so we     are not affected.

  - CVE-2016-3141: A use-after-free / double-free in the     WDDX deserialization could lead to crashes or potential     code execution. [bsc#969821]

  - CVE-2016-3142: An Out-of-bounds read in     phar_parse_zipfile() could lead to crashes. [bsc#971912]     Note: we do not ship the phar extension currently, so we     are not affected.

  - CVE-2014-9767: A directory traversal when extracting zip     files was fixed that could lead to overwritten files.
    [bsc#971612]

  - CVE-2016-3185: A type confusion vulnerability in     make_http_soap_request() could lead to crashes or     potentially code execution. [bsc#971611]

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.

According to its self-reported version number, the remote pfSense install is prior to 2.2.4. It is, therefore, affected by multiple vulnerabilities as stated in the referenced vendor advisories.

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)

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't allow creating     strings with lengths outside int range, avoids overflows     (bsc#982011,bsc#982012)

  - CVE-2016-5096: A int/size_t confusion in fread could     corrupt memory (bsc#982013)

  - CVE-2016-5114: A fpm_log.c memory leak and buffer     overflow could leak information out of the php process     or overwrite a buffer by 1 byte (bsc#982162)

  - CVE-2016-4346: A heap overflow was fixed in     ext/standard/string.c (bsc#977994)

  - CVE-2016-4342: A heap corruption was fixed in     tar/zip/phar parser (bsc#977991)

  - CVE-2016-4537, CVE-2016-4538: bcpowmod accepted 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)

  - CVE-2015-8879: odbc_bindcols function in     ext/odbc/php_odbc.c mishandles driver behavior for     SQL_WVARCHAR (bsc#981050)

Also fixed previously on SUSE Linux Enterprise 11 SP4, but not yet shipped to SUSE Linux Enterprise Server 11 SP3 LTSS :

  - CVE-2015-8838: mysqlnd was vulnerable to BACKRONYM     (bnc#973792).

  - CVE-2015-8835: SoapClient s_call method suffered from a     type confusion issue that could have lead to crashes     [bsc#973351]

  - CVE-2016-2554: A NULL pointer dereference in     phar_get_fp_offset could lead to crashes. [bsc#968284]

  - CVE-2015-7803: A Stack overflow vulnerability when     decompressing tar phar archives could potentially lead     to code execution. [bsc#949961]

  - CVE-2016-3141: A use-after-free / double-free in the     WDDX deserialization could lead to crashes or potential     code execution. [bsc#969821]

  - CVE-2016-3142: An Out-of-bounds read in     phar_parse_zipfile() could lead to crashes. [bsc#971912]

  - CVE-2014-9767: A directory traversal when extracting zip     files was fixed that could lead to overwritten files.
    [bsc#971612]

  - CVE-2016-3185: A type confusion vulnerability in     make_http_soap_request() could lead to crashes or     potentially code execution. [bsc#971611]

  - CVE-2016-4073: A remote attacker could have caused     denial of service, or possibly execute arbitrary code,     due to incorrect handling of string length calculations     in mb_strcut() (bsc#977003)

  - CVE-2015-8867: The PHP function     openssl_random_pseudo_bytes() did not return     cryptographically secure random bytes (bsc#977005)

  - CVE-2016-4070: The libxml_disable_entity_loader()     setting was shared between threads, which could have     resulted in XML external entity injection and entity     expansion issues (bsc#976997)

  - CVE-2015-8866: A remote attacker could have caused     denial of service due to incorrect handling of large     strings in php_raw_url_encode() (bsc#976996)

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.

USN-2952-1 fixed vulnerabilities in PHP. One of the backported patches caused a regression in the PHP Soap client. This update fixes the problem.

We apologize for the inconvenience.

It was discovered that the PHP Zip extension incorrectly handled directories when processing certain zip files. A remote attacker could possibly use this issue to create arbitrary directories.
(CVE-2014-9767)

It was discovered that the PHP Soap client incorrectly validated data types. A remote attacker could use this issue to cause PHP to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2015-8835, CVE-2016-3185)

It was discovered that the PHP MySQL native driver incorrectly handled TLS connections to MySQL databases. A man in the middle attacker could possibly use this issue to downgrade and snoop on TLS connections. This vulnerability is known as BACKRONYM. (CVE-2015-8838)

It was discovered that PHP incorrectly handled the imagerotate function. A remote attacker could use this issue to cause PHP to crash, resulting in a denial of service, or possibly obtain sensitive information. This issue only applied to Ubuntu 14.04 LTS and Ubuntu 15.10.
(CVE-2016-1903)

Hans Jerry Illikainen discovered that the PHP phar extension incorrectly handled certain tar 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-2016-2554)

It was discovered that the PHP WDDX extension incorrectly handled certain malformed XML data. A remote attacker could possibly use this issue to cause PHP to crash, resulting in a denial of service, or possibly execute arbitrary code.
(CVE-2016-3141)

It was discovered that the PHP phar extension incorrectly handled certain zip files. A remote attacker could use this issue to cause PHP to crash, resulting in a denial of service, or possibly obtain sensitive information.
(CVE-2016-3142)

It was discovered that the PHP libxml_disable_entity_loader() setting was shared between threads. When running under PHP-FPM, this could result in XML external entity injection and entity expansion issues.
This issue only applied to Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. (No CVE number)

It was discovered that the PHP openssl_random_pseudo_bytes() function did not return cryptographically strong pseudo-random bytes. (No CVE number)

It was discovered that the PHP Fileinfo component incorrectly handled certain magic files. An attacker could use this issue to cause PHP to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE number pending)

It was discovered that the PHP php_snmp_error() function incorrectly handled string formatting. 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 applied to Ubuntu 14.04 LTS and Ubuntu 15.10.
(CVE number pending)

It was discovered that the PHP rawurlencode() function incorrectly handled large strings. A remote attacker could use this issue to cause PHP to crash, resulting in a denial of service. (CVE number pending)

It was discovered that the PHP phar extension incorrectly handled certain filenames in 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 number pending)

It was discovered that the PHP mb_strcut() function incorrectly handled string formatting. A remote attacker could use this issue to cause PHP to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE number pending).

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.

This update for php5 fixes the following security issues :

  - CVE-2015-8838: mysqlnd was vulnerable to BACKRONYM     (bnc#973792).

  - CVE-2015-8835: SoapClient s_call method suffered from a     type confusion issue that could have lead to crashes     [bsc#973351]

  - CVE-2016-2554: A NULL pointer dereference in     phar_get_fp_offset could lead to crashes. [bsc#968284]     Note: we do not ship the phar extension currently, so we     are not affected.

  - CVE-2016-3141: A use-after-free / double-free in the     WDDX deserialization could lead to crashes or potential     code execution. [bsc#969821]

  - CVE-2016-3142: An Out-of-bounds read in     phar_parse_zipfile() could lead to crashes. [bsc#971912]     Note: we do not ship the phar extension currently, so we     are not affected.

  - CVE-2014-9767: A directory traversal when extracting zip     files was fixed that could lead to overwritten files.
    [bsc#971612]

  - CVE-2016-3185: A type confusion vulnerability in     make_http_soap_request() could lead to crashes or     potentially code execution. [bsc#971611]

This update was imported from the SUSE:SLE-12:Update update project.

This update for php5 fixes the following security issues :

  - bsc#974305: buffer overflow in libmagic 

  - CVE-2015-8838: mysqlnd was vulnerable to BACKRONYM     (bnc#973792).

  - CVE-2015-8835: SoapClient s__call method suffered from     type confusion issue (bnc#973351).

  - CVE-2016-3141: A use-after-free / double-free in the     WDDX deserialization could lead to crashes or potential     code execution. [bsc#969821]

  - CVE-2016-3142: An Out-of-bounds read in     phar_parse_zipfile() could lead to crashes. [bsc#971912]

  - CVE-2014-9767: A directory traversal when extracting zip     files was fixed that could lead to overwritten files.
    [bsc#971612]

  - CVE-2016-3185: A type confusion vulnerability in     make_http_soap_request() could lead to crashes or     potentially code execution. [bsc#971611]

This update for php53 fixes the following issues :

  - CVE-2015-8838: mysqlnd was vulnerable to BACKRONYM     (bnc#973792).

  - CVE-2015-8835: SoapClient s_call method suffered from a     type confusion issue that could have lead to crashes     [bsc#973351]

  - CVE-2016-2554: A NULL pointer dereference in     phar_get_fp_offset could lead to crashes. [bsc#968284]     Note: we do not ship the phar extension currently, so we     are not affected.

  - CVE-2015-7803: A Stack overflow vulnerability when     decompressing tar phar archives could potentially lead     to code execution. [bsc#949961] Note: we do not ship the     phar extension currently, so we are not affected.

  - CVE-2016-3141: A use-after-free / double-free in the     WDDX deserialization could lead to crashes or potential     code execution. [bsc#969821]

  - CVE-2016-3142: An Out-of-bounds read in     phar_parse_zipfile() could lead to crashes. [bsc#971912]     Note: we do not ship the phar extension currently, so we     are not affected.

  - CVE-2014-9767: A directory traversal when extracting zip     files was fixed that could lead to overwritten files.
    [bsc#971612]

  - CVE-2016-3185: A type confusion vulnerability in     make_http_soap_request() could lead to crashes or     potentially code execution. [bsc#971611]

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.

The remote Ubuntu 14.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-2952-1 advisory.

    It was discovered that the PHP Zip extension incorrectly handled directories when processing certain zip     files. A remote attacker could possibly use this issue to create arbitrary directories. (CVE-2014-9767)

    It was discovered that the PHP Soap client incorrectly validated data types. A remote attacker could use     this issue to cause PHP to crash, resulting in a denial of service, or possibly execute arbitrary code.
    (CVE-2015-8835, CVE-2016-3185)

    It was discovered that the PHP MySQL native driver incorrectly handled TLS connections to MySQL databases.
    A machine-in-the-middle attacker could possibly use this issue to downgrade and snoop on TLS connections.
    This vulnerability is known as BACKRONYM. (CVE-2015-8838)

    It was discovered that PHP incorrectly handled the imagerotate function. A remote attacker could use this     issue to cause PHP to crash, resulting in a denial of service, or possibly obtain sensitive information.
    This issue only applied to Ubuntu 14.04 LTS and Ubuntu 15.10. (CVE-2016-1903)

    Hans Jerry Illikainen discovered that the PHP phar extension incorrectly handled certain tar 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-2016-2554)

    It was discovered that the PHP WDDX extension incorrectly handled certain malformed XML data. A remote     attacker could possibly use this issue to cause PHP to crash, resulting in a denial of service, or     possibly execute arbitrary code. (CVE-2016-3141)

    It was discovered that the PHP phar extension incorrectly handled certain zip files. A remote attacker     could use this issue to cause PHP to crash, resulting in a denial of service, or possibly obtain sensitive     information. (CVE-2016-3142)

    It was discovered that the PHP libxml_disable_entity_loader() setting was shared between threads. When     running under PHP-FPM, this could result in XML external entity injection and entity expansion issues.
    This issue only applied to Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. (No CVE number)

    It was discovered that the PHP openssl_random_pseudo_bytes() function did not return cryptographically     strong pseudo-random bytes. (No CVE number)

    It was discovered that the PHP Fileinfo component incorrectly handled certain magic files. An attacker     could use this issue to cause PHP to crash, resulting in a denial of service, or possibly execute     arbitrary code. (CVE number pending)

    It was discovered that the PHP php_snmp_error() function incorrectly handled string formatting. 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 applied to Ubuntu 14.04 LTS and Ubuntu 15.10. (CVE number pending)

    It was discovered that the PHP rawurlencode() function incorrectly handled large strings. A remote     attacker could use this issue to cause PHP to crash, resulting in a denial of service. (CVE number     pending)

    It was discovered that the PHP phar extension incorrectly handled certain filenames in 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 number pending)

    It was discovered that the PHP mb_strcut() function incorrectly handled string formatting. A remote     attacker could use this issue to cause PHP to crash, resulting in a denial of service, or possibly execute     arbitrary code. (CVE number pending)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

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.

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.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

According to its banner, the version of PHP 5.5.x running on the remote web server is prior to 5.5.27. 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)

  - An unspecified flaw exists in the     phar_convert_to_other() function in phar_object.c during     the conversion of invalid TAR files. An attacker can     exploit this flaw to crash a PHP application, resulting     in a denial of service condition.

  - 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.

  - 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.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

According to its banner, the version of PHP 5.4.x running on the remote web server is prior to 5.4.43. 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)     
  - An unspecified flaw exists in the     phar_convert_to_other() function in phar_object.c during     the conversion of invalid TAR files. 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.

  - A user-after-free error exists in the object_custom()     function in var_unserializer.c due to improper     validation of user-supplied input. A remote attacker can     exploit this to dereference already freed memory,     potentially resulting in the execution of arbitrary     code.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Severity
219216	Linux Distros Unpatched Vulnerability : CVE-2015-8838	Nessus	Misc.	medium
149163	EulerOS 2.0 SP3 : php (EulerOS-SA-2021-1830)	Nessus	Huawei Local Security Checks	medium
137474	EulerOS 2.0 SP2 : php (EulerOS-SA-2020-1632)	Nessus	Huawei Local Security Checks	high
98803	PHP 5.6.x < 5.6.11 Multiple Vulnerabilities (BACKRONYM)	Web App Scanning	Component Vulnerability	critical
119975	SUSE SLES12 Security Update : php5 (SUSE-SU-2016:1166-1)	Nessus	SuSE Local Security Checks	critical
106496	pfSense < 2.2.4 Multiple Vulnerabilities (SA-15_07)	Nessus	Firewalls	high
93161	SUSE SLES11 Security Update : php53 (SUSE-SU-2016:1638-1) (BACKRONYM)	Nessus	SuSE Local Security Checks	critical
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	high
91665	SUSE SLES11 Security Update : php53 (SUSE-SU-2016:1581-1)	Nessus	SuSE Local Security Checks	critical
90825	Ubuntu 15.10 : php5 regression (USN-2952-2)	Nessus	Ubuntu Local Security Checks	critical
90782	openSUSE Security Update : php5 (openSUSE-2016-517)	Nessus	SuSE Local Security Checks	critical
90772	openSUSE Security Update : php5 (openSUSE-2016-516)	Nessus	SuSE Local Security Checks	critical
90757	SUSE SLES11 Security Update : php53 (SUSE-SU-2016:1145-1)	Nessus	SuSE Local Security Checks	critical
90677	Ubuntu 14.04 LTS : PHP vulnerabilities (USN-2952-1)	Nessus	Ubuntu Local Security Checks	critical
8955	PHP 5.5.x < 5.5.27 / 5.6.x < 5.6.11 Multiple Vulnerabilities	Nessus Network Monitor	Web Servers	high
8954	PHP 5.6.10 < 5.6.11 Multiple Vulnerabilities (BACKRONYM)	Nessus Network Monitor	Web Servers	high
84673	PHP 5.6.x < 5.6.11 Multiple Vulnerabilities (BACKRONYM)	Nessus	CGI abuses	critical
84672	PHP 5.5.x < 5.5.27 Multiple Vulnerabilities (BACKRONYM)	Nessus	CGI abuses	critical
84671	PHP 5.4.x < 5.4.43 Multiple Vulnerabilities (BACKRONYM)	Nessus	CGI abuses	critical

Detections

Analytics

CVE-2015-8838

medium

Tenable Plugins

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