According to its banner, the version of PHP running on the remote web server is 7.0.x prior to 7.0.21. It is, therefore, affected by the following vulnerabilities :

 - An out-of-bounds read error exists in the PCRE library in the compile_bracket_matchingpath() function within file pcre_jit_compile.c. An unauthenticated, remote attacker can exploit this, via a specially crafted regular expression, to crash a process linked to the library, resulting in a denial of service condition. (CVE-2017-6004)

 - An out-of-bounds read error exists in the GD Graphics Library (LibGD) in the gdImageCreateFromGifCtx() function within file gd_gif_in.c when handling a specially crafted GIF file. An unauthenticated, remote attacker can exploit this to disclose sensitive memory contents or crash a process linked to the library. (CVE-2017-7890)

 - An out-of-bounds read error exists in Oniguruma in the match_at() function within file regexec.c. An unauthenticated, remote attacker can exploit this to disclose sensitive memory contents or crash a process linked to the library. (CVE-2017-9224)

 - An out-of-bounds write error exists in Oniguruma in the next_state_val() function during regular expression compilation. An unauthenticated, remote attacker can exploit this to execute arbitrary code. (CVE-2017-9226)

 - An out-of-bounds read error exists in Oniguruma in the mbc_enc_len() function within file utf8.c. An unauthenticated, remote attacker can exploit this to disclose memory contents or crash a process linked to the library. (CVE-2017-9227)

 - An out-of-bounds write error exists in Oniguruma in the bitset_set_range() function during regular expression compilation. An unauthenticated, remote attacker can exploit this to execute arbitrary code. (CVE-2017-9228)

 - An invalid pointer deference flaw exists in Oniguruma in the left_adjust_char_head() function within file regexec.c during regular expression compilation. An unauthenticated, remote attacker can exploit this to crash a process linked to the library, resulting in a denial of service condition. (CVE-2017-9229)

 - A flaw exists in OpenSSL in the EVP_SealInit() function within file crypto/evp/p_seal.c due to returning an undocumented value of '-1'. An unauthenticated, remote attacker can exploit this to cause an unspecified impact. (CVE-2017-11144)

 - An out-of-bounds read error exists in PHP in the php_parse_date() function within file ext/date/lib/parse_date.c. An unauthenticated, remote attacker can exploit this to disclose memory contents or cause a denial of service condition. (CVE-2017-11145)

 - A use-after-free error exists in PHP in the zval_get_type() function within file ext/standard/var_unserializer.c. An unauthenticated, remote attacker can exploit this to execute arbitrary code.

 - An out-of-bounds read error exists in PHP in the finish_nested_data() function within file ext/standard/var_unserializer.re. An unauthenticated, remote attacker can exploit this to disclose memory contents or cause a denial of service condition.

 - An off-by-one overflow condition exists in PHP in the INI parsing API, specifically in the zend_ini_do_op() function within file Zend/zend_ini_parser.y, due to improper validation of user-supplied input. An unauthenticated, remote attacker can exploit this to cause a denial of service condition or the execution of arbitrary code.

 - A stack-based buffer overflow condition exists in PHP in the msgfmt_parse_message() function due to improper validation of user-supplied input when parsing locale. An unauthenticated, remote attacker can exploit this to cause a denial of service condition or the execution of arbitrary code.

Note that the scanner 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 running on the remote web server is 7.1.x prior to 7.1.7. It is, therefore, affected by the following vulnerabilities :

 - An out-of-bounds read error exists in the GD Graphics Library (LibGD) in the gdImageCreateFromGifCtx() function within file gd_gif_in.c when handling a specially crafted GIF file. An unauthenticated, remote attacker can exploit this to disclose sensitive memory contents or crash a process linked to the library. (CVE-2017-7890)

 - An out-of-bounds read error exists in Oniguruma in the match_at() function within file regexec.c. An unauthenticated, remote attacker can exploit this to disclose sensitive memory contents or crash a process linked to the library. (CVE-2017-9224)

 - An out-of-bounds write error exists in Oniguruma in the next_state_val() function during regular expression compilation. An unauthenticated, remote attacker can exploit this to execute arbitrary code. (CVE-2017-9226)

 - An out-of-bounds read error exists in Oniguruma in the mbc_enc_len() function within file utf8.c. An unauthenticated, remote attacker can exploit this to disclose memory contents or crash a process linked to the library. (CVE-2017-9227)

 - An out-of-bounds write error exists in Oniguruma in the bitset_set_range() function during regular expression compilation. An unauthenticated, remote attacker can exploit this to execute arbitrary code. (CVE-2017-9228)

 - An invalid pointer deference flaw exists in Oniguruma in the left_adjust_char_head() function within file regexec.c during regular expression compilation. An unauthenticated, remote attacker can exploit this to crash a process linked to the library, resulting in a denial of service condition. (CVE-2017-9229)

 - A flaw exists in OpenSSL in the EVP_SealInit() function within file crypto/evp/p_seal.c due to returning an undocumented value of '-1'. An unauthenticated, remote attacker can exploit this to cause an unspecified impact. (CVE-2017-11144)

 - An out-of-bounds read error exists in PHP in the php_parse_date() function within file ext/date/lib/parse_date.c. An unauthenticated, remote attacker can exploit this to disclose memory contents or cause a denial of service condition. (CVE-2017-11145)

 - A use-after-free error exists in PHP in the zval_get_type() function within file ext/standard/var_unserializer.c. An unauthenticated, remote attacker can exploit this to execute arbitrary code. (CVE-2017-12934)

 - An out-of-bounds read error exists in PHP in the finish_nested_data() function within file ext/standard/var_unserializer.re. An unauthenticated, remote attacker can exploit this to disclose memory contents or cause a denial of service condition. (CVE-2017-12933)

 - An off-by-one overflow condition exists in PHP in the INI parsing API, specifically in the zend_ini_do_op() function within file Zend/zend_ini_parser.y, due to improper validation of user-supplied input. An unauthenticated, remote attacker can exploit this to cause a denial of service condition or the execution of arbitrary code. (CVE-2017-11628)

 - A stack-based buffer overflow condition exists in PHP in the msgfmt_parse_message() function due to improper validation of user-supplied input when parsing locale. An unauthenticated, remote attacker can exploit this to cause a denial of service condition or the execution of arbitrary code. (CVE-2017-11362)

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

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

  - A use-after-free in onig_new_deluxe() in regext.c in     Oniguruma 6.9.2 allows attackers to potentially cause     information disclosure, denial of service, or possibly     code execution by providing a crafted regular     expression. The attacker provides a pair of a regex     pattern and a string, with a multi-byte encoding that     gets handled by onig_new_deluxe(). Oniguruma issues     often affect Ruby, as well as common optional libraries     for PHP and Rust.(CVE-2019-13224)

  - PHP 7.1.5 has an Out of bounds access in     php_pcre_replace_impl via a crafted preg_replace     call.(CVE-2017-9118)

  - Double free vulnerability in the php_wddx_process_data     function in wddx.c in the WDDX extension in PHP before     5.5.37, 5.6.x before 5.6.23, and 7.x before 7.0.8     allows remote attackers to cause a denial of service     (application crash) or possibly execute arbitrary code     via crafted XML data that is mishandled in a     wddx_deserialize call.(CVE-2016-5772)

  - When using fgetss() function to read data with     stripping tags, in PHP versions 7.2.x below 7.2.27,     7.3.x below 7.3.14 and 7.4.x below 7.4.2 it is possible     to supply data that will cause this function to read     past the allocated buffer. This may lead to information     disclosure or crash.(CVE-2020-7059)

  - When using certain mbstring functions to convert     multibyte encodings, in PHP versions 7.2.x below     7.2.27, 7.3.x below 7.3.14 and 7.4.x below 7.4.2 it is     possible to supply data that will cause function     mbfl_filt_conv_big5_wchar to read past the allocated     buffer. This may lead to information disclosure or     crash.(CVE-2020-7060)

  - In PHP versions 7.2.x below 7.2.28, 7.3.x below 7.3.15     and 7.4.x below 7.4.3, when using file upload     functionality, if upload progress tracking is enabled,     but session.upload_progress.cleanup is set to 0     (disabled), and the file upload fails, the upload     procedure would try to clean up data that does not     exist and encounter null pointer dereference, which     would likely lead to a crash.(CVE-2020-7062)

  - In PHP versions 7.2.x below 7.2.28, 7.3.x below 7.3.15     and 7.4.x below 7.4.3, when creating PHAR archive using     PharData::buildFromIterator() function, the files are     added with default permissions (0666, or all access)     even if the original files on the filesystem were with     more restrictive permissions. This may result in files     having more lax permissions than intended when such     archive is extracted.(CVE-2020-7063)

  - Format string vulnerability in the php_snmp_error     function in ext/snmp/snmp.c in PHP before 5.5.34, 5.6.x     before 5.6.20, and 7.x before 7.0.5 allows remote     attackers to execute arbitrary code via format string     specifiers in an SNMP::get call.(CVE-2016-4071)

  - The Phar extension in PHP before 5.5.34, 5.6.x before     5.6.20, and 7.x before 7.0.5 allows remote attackers to     execute arbitrary code via a crafted filename, as     demonstrated by mishandling of \0 characters by the     phar_analyze_path function in     ext/phar/phar.c.(CVE-2016-4072)

  - Multiple integer overflows in the mbfl_strcut function     in ext/mbstring/libmbfl/mbfl/mbfilter.c in PHP before     5.5.34, 5.6.x before 5.6.20, and 7.x before 7.0.5 allow     remote attackers to cause a denial of service     (application crash) or possibly execute arbitrary code     via a crafted mb_strcut call.(CVE-2016-4073)

  - In PHP 7.x before 7.0.21 and 7.1.x before 7.1.7,     ext/intl/msgformat/msgformat_parse.c does not restrict     the locale length, which allows remote attackers to     cause a denial of service (stack-based buffer overflow     and application crash) or possibly have unspecified     other impact within International Components for     Unicode (ICU) for C/C++ via a long first argument to     the msgfmt_parse_message function.(CVE-2017-11362)

  - When processing certain files, PHP EXIF extension in     versions 7.1.x below 7.1.29, 7.2.x below 7.2.18 and     7.3.x below 7.3.5 can be caused to read past allocated     buffer in exif_process_IFD_TAG function. This may lead     to information disclosure or crash.(CVE-2019-11036)

  - Function iconv_mime_decode_headers() in PHP versions     7.1.x below 7.1.30, 7.2.x below 7.2.19 and 7.3.x below     7.3.6 may perform out-of-buffer read due to integer     overflow when parsing MIME headers. This may lead to     information disclosure or crash.(CVE-2019-11039)

  - In PHP versions 7.2.x below 7.2.31, 7.3.x below 7.3.18     and 7.4.x below 7.4.6, when HTTP file uploads are     allowed, supplying overly long filenames or field names     could lead PHP engine to try to allocate oversized     memory storage, hit the memory limit and stop     processing the request, without cleaning up temporary     files created by upload request. This potentially could     lead to accumulation of uncleaned temporary files     exhausting the disk space on the target     server.(CVE-2019-11048)

  - In PHP versions 7.2.x below 7.2.26, 7.3.x below 7.3.13     and 7.4.0, PHP DirectoryIterator class accepts     filenames with embedded \0 byte and treats them as     terminating at that byte. This could lead to security     vulnerabilities, e.g. in applications checking paths     that the code is allowed to access.(CVE-2019-11045)

  - When PHP EXIF extension is parsing EXIF information     from an image, e.g. via exif_read_data() function, in     PHP versions 7.2.x below 7.2.26, 7.3.x below 7.3.13 and     7.4.0 it is possible to supply it with data what will     cause it to read past the allocated buffer. This may     lead to information disclosure or     crash.(CVE-2019-11047)

  - When PHP EXIF extension is parsing EXIF information     from an image, e.g. via exif_read_data() function, in     PHP versions 7.2.x below 7.2.26, 7.3.x below 7.3.13 and     7.4.0 it is possible to supply it with data what will     cause it to read past the allocated buffer. This may     lead to information disclosure or     crash.(CVE-2019-11050)

  - Oniguruma through 6.9.3, as used in PHP 7.3.x and other     products, has a heap-based buffer over-read in     str_lower_case_match in regexec.c.(CVE-2019-19246)

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 running on the remote web server is 7.0.x prior to 7.0.21. It is, therefore, affected by the following vulnerabilities :

  - An out-of-bounds read error exists in the PCRE library     in the compile_bracket_matchingpath() function within     file pcre_jit_compile.c. An unauthenticated, remote     attacker can exploit this, via a specially crafted     regular expression, to crash a process linked to the     library, resulting in a denial of service condition.
    (CVE-2017-6004)

  - An out-of-bounds read error exists in the GD Graphics     Library (LibGD) in the gdImageCreateFromGifCtx()     function within file gd_gif_in.c when handling a     specially crafted GIF file. An unauthenticated, remote     attacker can exploit this to disclose sensitive memory     contents or crash a process linked to the library.
    (CVE-2017-7890)

  - An out-of-bounds read error exists in Oniguruma in the     match_at() function within file regexec.c. An     unauthenticated, remote attacker can exploit this to     disclose sensitive memory contents or crash a process     linked to the library. (CVE-2017-9224)

  - An out-of-bounds write error exists in Oniguruma in the     next_state_val() function during regular expression     compilation. An unauthenticated, remote attacker can     exploit this to execute arbitrary code. (CVE-2017-9226)

  - An out-of-bounds read error exists in Oniguruma in the     mbc_enc_len() function within file utf8.c. An     unauthenticated, remote attacker can exploit this to     disclose memory contents or crash a process linked to     the library. (CVE-2017-9227)

  - An out-of-bounds write error exists in Oniguruma in the     bitset_set_range() function during regular expression     compilation. An unauthenticated, remote attacker can     exploit this to execute arbitrary code. (CVE-2017-9228)

  - An invalid pointer deference flaw exists in Oniguruma     in the left_adjust_char_head() function within file     regexec.c during regular expression compilation. An     unauthenticated, remote attacker can exploit this to     crash a process linked to the library, resulting in a     denial of service condition. (CVE-2017-9229)

  - A flaw exists in OpenSSL in the EVP_SealInit() function     within file crypto/evp/p_seal.c due to returning an     undocumented value of '-1'. An unauthenticated, remote     attacker can exploit this to cause an unspecified     impact. (CVE-2017-11144)

  - An out-of-bounds read error exists in PHP in the     php_parse_date() function within file     ext/date/lib/parse_date.c. An unauthenticated, remote     attacker can exploit this to disclose memory contents or     cause a denial of service condition. (CVE-2017-11145)

  - A stack-based buffer overflow condition exists in PHP     in the msgfmt_parse_message() function due to improper     validation of user-supplied input when parsing locale.
    An unauthenticated, remote attacker can exploit this to     cause a denial of service condition or the execution of     arbitrary code. (CVE-2017-11362)

  - An off-by-one overflow condition exists in PHP in the     INI parsing API, specifically in the zend_ini_do_op()     function within file Zend/zend_ini_parser.c, due to     improper validation of user-supplied input. An     unauthenticated, remote attacker can exploit this to     cause a denial of service condition or the execution of     arbitrary code. (CVE-2017-11628)

  - An out-of-bounds read error exists in PHP in the     finish_nested_data() function within file     ext/standard/var_unserializer.re. An unauthenticated,     remote attacker can exploit this to disclose memory     contents or cause a denial of service condition.
    (CVE-2017-12933)

  - A use-after-free error exists in PHP in the     zval_get_type() function within file     ext/standard/var_unserializer.c. An unauthenticated,     remote attacker can exploit this to execute arbitrary     code. (CVE-2017-12934)

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

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

  - PHP 7.1.5 has an Out of bounds access in     php_pcre_replace_impl via a crafted preg_replace     call.(CVE-2017-9118)

  - When using fgetss() function to read data with     stripping tags, in PHP versions 7.2.x below 7.2.27,     7.3.x below 7.3.14 and 7.4.x below 7.4.2 it is possible     to supply data that will cause this function to read     past the allocated buffer. This may lead to information     disclosure or crash.(CVE-2020-7059)

  - When using certain mbstring functions to convert     multibyte encodings, in PHP versions 7.2.x below     7.2.27, 7.3.x below 7.3.14 and 7.4.x below 7.4.2 it is     possible to supply data that will cause function     mbfl_filt_conv_big5_wchar to read past the allocated     buffer. This may lead to information disclosure or     crash.(CVE-2020-7060)

  - In PHP versions 7.2.x below 7.2.28, 7.3.x below 7.3.15     and 7.4.x below 7.4.3, when using file upload     functionality, if upload progress tracking is enabled,     but session.upload_progress.cleanup is set to 0     (disabled), and the file upload fails, the upload     procedure would try to clean up data that does not     exist and encounter null pointer dereference, which     would likely lead to a crash.(CVE-2020-7062)

  - In PHP versions 7.2.x below 7.2.28, 7.3.x below 7.3.15     and 7.4.x below 7.4.3, when creating PHAR archive using     PharData::buildFromIterator() function, the files are     added with default permissions (0666, or all access)     even if the original files on the filesystem were with     more restrictive permissions. This may result in files     having more lax permissions than intended when such     archive is extracted.(CVE-2020-7063)

  - Double free vulnerability in the php_wddx_process_data     function in wddx.c in the WDDX extension in PHP before     5.5.37, 5.6.x before 5.6.23, and 7.x before 7.0.8     allows remote attackers to cause a denial of service     (application crash) or possibly execute arbitrary code     via crafted XML data that is mishandled in a     wddx_deserialize call.(CVE-2016-5772)

  - In PHP versions 7.2.x below 7.2.31, 7.3.x below 7.3.18     and 7.4.x below 7.4.6, when HTTP file uploads are     allowed, supplying overly long filenames or field names     could lead PHP engine to try to allocate oversized     memory storage, hit the memory limit and stop     processing the request, without cleaning up temporary     files created by upload request. This potentially could     lead to accumulation of uncleaned temporary files     exhausting the disk space on the target     server.(CVE-2019-11048)

  - Function iconv_mime_decode_headers() in PHP versions     7.1.x below 7.1.30, 7.2.x below 7.2.19 and 7.3.x below     7.3.6 may perform out-of-buffer read due to integer     overflow when parsing MIME headers. This may lead to     information disclosure or crash.(CVE-2019-11039)

  - Format string vulnerability in the php_snmp_error     function in ext/snmp/snmp.c in PHP before 5.5.34, 5.6.x     before 5.6.20, and 7.x before 7.0.5 allows remote     attackers to execute arbitrary code via format string     specifiers in an SNMP::get call.(CVE-2016-4071)

  - Multiple integer overflows in the mbfl_strcut function     in ext/mbstring/libmbfl/mbfl/mbfilter.c in PHP before     5.5.34, 5.6.x before 5.6.20, and 7.x before 7.0.5 allow     remote attackers to cause a denial of service     (application crash) or possibly execute arbitrary code     via a crafted mb_strcut call.(CVE-2016-4073)

  - In PHP 7.x before 7.0.21 and 7.1.x before 7.1.7,     ext/intl/msgformat/msgformat_parse.c does not restrict     the locale length, which allows remote attackers to     cause a denial of service (stack-based buffer overflow     and application crash) or possibly have unspecified     other impact within International Components for     Unicode (ICU) for C/C++ via a long first argument to     the msgfmt_parse_message function.(CVE-2017-11362)

  - When processing certain files, PHP EXIF extension in     versions 7.1.x below 7.1.29, 7.2.x below 7.2.18 and     7.3.x below 7.3.5 can be caused to read past allocated     buffer in exif_process_IFD_TAG function. This may lead     to information disclosure or crash.(CVE-2019-11036)

  - The Phar extension in PHP before 5.5.34, 5.6.x before     5.6.20, and 7.x before 7.0.5 allows remote attackers to     execute arbitrary code via a crafted filename, as     demonstrated by mishandling of \0 characters by the     phar_analyze_path function in     ext/phar/phar.c.(CVE-2016-4072)

  - In PHP versions 7.2.x below 7.2.26, 7.3.x below 7.3.13     and 7.4.0, PHP DirectoryIterator class accepts     filenames with embedded \0 byte and treats them as     terminating at that byte. This could lead to security     vulnerabilities, e.g. in applications checking paths     that the code is allowed to access.(CVE-2019-11045)

  - When PHP EXIF extension is parsing EXIF information     from an image, e.g. via exif_read_data() function, in     PHP versions 7.2.x below 7.2.26, 7.3.x below 7.3.13 and     7.4.0 it is possible to supply it with data what will     cause it to read past the allocated buffer. This may     lead to information disclosure or     crash.(CVE-2019-11047)

  - When PHP EXIF extension is parsing EXIF information     from an image, e.g. via exif_read_data() function, in     PHP versions 7.2.x below 7.2.26, 7.3.x below 7.3.13 and     7.4.0 it is possible to supply it with data what will     cause it to read past the allocated buffer. This may     lead to information disclosure or     crash.(CVE-2019-11050)

  - Oniguruma through 6.9.3, as used in PHP 7.3.x and other     products, has a heap-based buffer over-read in     str_lower_case_match in regexec.c.(CVE-2019-19246)

  - 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)

  - In PHP versions 7.2.x below 7.2.9, 7.3.x below 7.3.16     and 7.4.x below 7.4.4, while parsing EXIF data with     exif_read_data() function, it is possible for malicious     data to cause PHP to read one byte of uninitialized     memory. This could potentially lead to information     disclosure or crash.(CVE-2020-7064)

  - In PHP versions 7.2.x below 7.2.29, 7.3.x below 7.3.16     and 7.4.x below 7.4.4, while using get_headers() with     user-supplied URL, if the URL contains zero (\0)     character, the URL will be silently truncated at it.
    This may cause some software to make incorrect     assumptions about the target of the get_headers() and     possibly send some information to a wrong     server.(CVE-2020-7066)

  - A use-after-free in onig_new_deluxe() in regext.c in     Oniguruma 6.9.2 allows attackers to potentially cause     information disclosure, denial of service, or possibly     code execution by providing a crafted regular     expression. The attacker provides a pair of a regex     pattern and a string, with a multi-byte encoding that     gets handled by onig_new_deluxe(). Oniguruma issues     often affect Ruby, as well as common optional libraries     for PHP and Rust.(CVE-2019-13224)

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.

It was discovered that the PHP opcache created keys for files it cached based on their filepath. A local attacker could possibly use this issue in a shared hosting environment to obtain sensitive information. This issue only affected Ubuntu 14.04 LTS.
(CVE-2015-8994)

It was discovered that the PHP URL parser incorrectly handled certain URI components. A remote attacker could possibly use this issue to bypass hostname-specific URL checks. This issue only affected Ubuntu 14.04 LTS. (CVE-2016-10397)

It was discovered that PHP incorrectly handled certain boolean parameters when unserializing data. A remote attacker could possibly use this issue to cause PHP to crash, resulting in a denial of service. This issue only affected Ubuntu 14.04 LTS. (CVE-2017-11143)

Sebastian Li, Wei Lei, Xie Xiaofei, and Liu Yang discovered that PHP incorrectly handled the OpenSSL sealing function. A remote attacker could possibly use this issue to cause PHP to crash, resulting in a denial of service. (CVE-2017-11144)

Wei Lei and Liu Yang discovered that the PHP date extension incorrectly handled memory. A remote attacker could possibly use this issue to disclose sensitive information from the server.
(CVE-2017-11145)

It was discovered that PHP incorrectly handled certain PHAR archives.
A remote attacker could use this issue to cause PHP to crash or disclose sensitive information. This issue only affected Ubuntu 14.04 LTS. (CVE-2017-11147)

It was discovered that PHP incorrectly handled locale length. A remote attacker could possibly use this issue to cause PHP to crash, resulting in a denial of service. (CVE-2017-11362)

Wei Lei and Liu Yang discovered that PHP incorrectly handled parsing ini files. An attacker could possibly use this issue to cause PHP to crash, resulting in a denial of service. (CVE-2017-11628)

It was discovered that PHP mbstring incorrectly handled certain regular expressions. A remote attacker could use this issue to cause PHP to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2017-9224, CVE-2017-9226, CVE-2017-9227, CVE-2017-9228, CVE-2017-9229).

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.

The remote host is affected by the vulnerability described in GLSA-201709-21 (PHP: Multiple vulnerabilities)

    Multiple vulnerabilities have been discovered in PHP. Please review the       referenced CVE identifiers for details.
  Impact :

    A remote attacker could execute arbitrary code with the privileges of       the process or cause a Denial of Service condition.
  Workaround :

    There is no known workaround at this time.

According to its banner, the version of PHP running on the remote web server is 7.1.x prior to 7.1.7. It is, therefore, affected by the following vulnerabilities :

  - An out-of-bounds read error exists in the GD Graphics     Library (LibGD) in the gdImageCreateFromGifCtx()     function within file gd_gif_in.c when handling a     specially crafted GIF file. An unauthenticated, remote     attacker can exploit this to disclose sensitive memory     contents or crash a process linked to the library.
    (CVE-2017-7890)

  - An out-of-bounds read error exists in Oniguruma in the     match_at() function within file regexec.c. An     unauthenticated, remote attacker can exploit this to     disclose sensitive memory contents or crash a process     linked to the library. (CVE-2017-9224)

  - An out-of-bounds write error exists in Oniguruma in the     next_state_val() function during regular expression     compilation. An unauthenticated, remote attacker can     exploit this to execute arbitrary code. (CVE-2017-9226)

  - An out-of-bounds read error exists in Oniguruma in the     mbc_enc_len() function within file utf8.c. An     unauthenticated, remote attacker can exploit this to     disclose memory contents or crash a process linked to     the library. (CVE-2017-9227)

  - An out-of-bounds write error exists in Oniguruma in the     bitset_set_range() function during regular expression     compilation. An unauthenticated, remote attacker can     exploit this to execute arbitrary code. (CVE-2017-9228)

  - An invalid pointer deference flaw exists in Oniguruma     in the left_adjust_char_head() function within file     regexec.c during regular expression compilation. An     unauthenticated, remote attacker can exploit this to     crash a process linked to the library, resulting in a     denial of service condition. (CVE-2017-9229)

  - A flaw exists in OpenSSL in the EVP_SealInit() function     within file crypto/evp/p_seal.c due to returning an     undocumented value of '-1'. An unauthenticated, remote     attacker can exploit this to cause an unspecified     impact. (CVE-2017-11144)

  - An out-of-bounds read error exists in PHP in the     php_parse_date() function within file     ext/date/lib/parse_date.c. An unauthenticated, remote     attacker can exploit this to disclose memory contents or     cause a denial of service condition. (CVE-2017-11145)

  - A stack-based buffer overflow condition exists in PHP     in the msgfmt_parse_message() function due to improper     validation of user-supplied input when parsing locale.
    An unauthenticated, remote attacker can exploit this to     cause a denial of service condition or the execution of     arbitrary code. (CVE-2017-11362)

  - An off-by-one overflow condition exists in PHP in the     INI parsing API, specifically in the zend_ini_do_op()     function within file Zend/zend_ini_parser.c, due to     improper validation of user-supplied input. An     unauthenticated, remote attacker can exploit this to     cause a denial of service condition or the execution of     arbitrary code. (CVE-2017-11628)

  - An out-of-bounds read error exists in PHP in the     finish_nested_data() function within file     ext/standard/var_unserializer.re. An unauthenticated,     remote attacker can exploit this to disclose memory     contents or cause a denial of service condition.
    (CVE-2017-12933)

  - A use-after-free error exists in PHP in the     zval_get_type() function within file     ext/standard/var_unserializer.c. An unauthenticated,     remote attacker can exploit this to execute arbitrary     code. (CVE-2017-12934)

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

USN-3566-1 fixed several vulnerabilities in PHP. This update provides the corresponding update for Ubuntu 12.04 ESM and Ubuntu 14.04 ESM.

It was discovered that PHP incorrectly handled certain files. An attacker could possibly use this issue to access sensitive information. (CVE-2018-20783)

It was discovered that PHP incorrectly handled certain files. An attacker could possibly use this issue to access sensitive information or possibly cause a crash, resulting in a denial of service.
(CVE-2019-11036)

It was discovered that PHP incorrectly handled memory when unserializing certain 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 ESM.
(CVE-2017-12933)

It was discovered that PHP incorrectly handled locale length. A remote attacker could possibly use this issue to cause PHP to crash, resulting in a denial of service. This issue only affected Ubuntu 12.04 ESM. (CVE-2017-11362)

It was discovered that PHP incorrectly handled certain stream metadata. A remote attacker could possibly use this issue to set arbitrary metadata. This issue only affected Ubuntu 12.04 ESM.
(CVE-2016-10712).

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.

ID	Name	Product	Family	Published	Updated	Severity
98844	PHP 7.0.x < 7.0.21 Multiple Vulnerabilities	Web App Scanning	Component Vulnerability	1/9/2019	3/14/2023	critical
98864	PHP 7.1.x < 7.1.7 Multiple Vulnerabilities	Web App Scanning	Component Vulnerability	1/9/2019	3/14/2023	critical
142352	EulerOS 2.0 SP2 : php (EulerOS-SA-2020-2384)	Nessus	Huawei Local Security Checks	11/3/2020	2/12/2024	critical
101526	PHP 7.0.x < 7.0.21 Multiple Vulnerabilities	Nessus	CGI abuses	7/13/2017	4/11/2022	critical
140834	EulerOS 2.0 SP3 : php (EulerOS-SA-2020-2067)	Nessus	Huawei Local Security Checks	9/28/2020	2/19/2024	critical
102416	Ubuntu 14.04 LTS / 16.04 LTS : PHP vulnerabilities (USN-3382-1)	Nessus	Ubuntu Local Security Checks	8/11/2017	10/20/2023	critical
103449	GLSA-201709-21 : PHP: Multiple vulnerabilities	Nessus	Gentoo Local Security Checks	9/25/2017	1/11/2021	critical
101527	PHP 7.1.x < 7.1.7 Multiple Vulnerabilities	Nessus	CGI abuses	7/13/2017	4/11/2022	critical
125352	Ubuntu 14.04 LTS : PHP vulnerabilities (USN-3566-2)	Nessus	Ubuntu Local Security Checks	5/23/2019	5/11/2023	critical

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