CVE-2016-6294

The locale_accept_from_http function in ext/intl/locale/locale_methods.c in PHP before 5.5.38, 5.6.x before 5.6.24, and 7.x before 7.0.9 does not properly restrict calls to the ICU uloc_acceptLanguageFromHTTP function, which allows remote attackers to cause a denial of service (out-of-bounds read) or possibly have unspecified other impact via a call with a long argument.

• Fix bug #69720: Null pointer dereference in phar_get_fp_offset()
• Fix bug #70728: Type Confusion Vulnerability in PHP_to_XMLRPC_worker()
• Fix bug #70661: Use After Free Vulnerability in WDDX Packet Deserialization
• Fix bug #70741: Session WDDX Packet Deserialization Type Confusion Vulnerability
• Fix bug #71459: Integer overflow in iptcembed()
• Fix bug #71039: exec functions ignore length but look for NULL termination
• Fix bug #71354: Heap corruption in tar/zip/phar parser.
• Fix bug #71391: NULL Pointer Dereference in phar_tar_setupmetadata()
• Fix bug #71323: Output of stream_get_meta_data can be falsified by its input
• Fix bug #71498: Out-of-Bound Read in phar_parse_zipfile()
• Fix bug #71587: Use-After-Free / Double-Free in WDDX Deserialize
• Fix bug #71860: Invalid memory write in phar on filename with \0 in name
• Fix bug #71798: Integer Overflow in php_raw_url_encode
• Fix bug #72837: integer overflow in bzdecompress caused heap corruption
• Fix bug #72681: PHP Session Data Injection Vulnerability
• Fix bug #72807: integer overflow in curl_escape caused heap corruption
• Fix bug #72838: Integer overflow lead to heap corruption in sql_regcase
• Fix bug #72697: select_colors write out-of-bounds
• Fix bug #72730: imagegammacorrect allows arbitrary write access
• Fix bug #72836: integer overflow in base64_decode caused heap corruption
• Fix bug #72848: integer overflow in quoted_printable_encode caused heap corruption
• Fix bug #72849: integer overflow in urlencode caused heap corruption
• Fix bug #72850: integer overflow in php_uuencode caused heap corruption
• Fix bug #72771: ftps:// wrapper is vulnerable to protocol downgrade attack
• Fix bug #72749: wddx_deserialize allows illegal memory access
• Fix bug #72750: wddx_deserialize null dereference
• Fix bug #72790: wddx_deserialize null dereference with invalid xml
• Fix bug #72799: wddx_deserialize null dereference in php_wddx_pop_element
• Fix bug #73189: Memcpy negative size parameter php_resolve_path
• Fix bug #73150: missing NULL check in dom_document_save_html
• Fix bug #73284: heap overflow in php_ereg_replace function
• Fix bug #73218: stack-buffer-overflow through "ResourceBundle" methods
• Fix bug #73208: integer overflow in imap_8bit caused heap corruption
• Fix bug #73082: string length overflow in mb_encode_* function
• Fix bug #73174: heap overflow in php_pcre_replace_impl
• Fix bug #73276: crash in openssl_random_pseudo_bytes function
• Fix bug #73275: crash in openssl_encrypt function
• Fix bug #73017: memory corruption in wordwrap function
• Fix bug #73240: Write out of bounds at number_format
• Fix bug #73073: CachingIterator null dereference when convert to string
• Fix bug #73293: NULL pointer dereference in SimpleXMLElement::asXML()
• Fix bug #73356: crash in bzcompress function
• Fix bug #72696: imagefilltoborder stackoverflow on truecolor images
• Fix bug #73418: Integer Overflow in "_php_imap_mail" leads Heap Overflow
• Fix bug #73144: Use-after-free in ArrayObject Deserialization
• Fix bug #73192: parse_url return wrong hostname
• Fix bug #73331: NULL Pointer Dereference in WDDX Packet Deserialization with PDORow
• Fix bug #73452: Segfault (Regression for #69152)
• Fix bug #73631: Invalid read when wddx decodes empty boolean element
• Fix bug #67587: Redirection loop on nginx with FPM
• Fix bug #71465: PHAR doesn't know about litespeed
• Fix bug #73737: FPE when parsing a tag format
• Fix bug #73868: Fix DOS vulnerability in gdImageCreateFromGd2Ctx()
• Fix bug #73869: Signed Integer Overflow gd_io.c
• Fix bug #73773: Seg fault when loading hostile phar
• Fix bug #70436: Use After Free Vulnerability in unserialize()
• Fix bug #74603: PHP INI Parsing Stack Buffer Overflow Vulnerability
• Fix bug #72535: arcfour encryption stream filter crashes php
• Fix bug #72434: ZipArchive class Use After Free Vulnerability in PHP's GC algorithm and unseria
• Fix bug #72455: Heap Overflow due to integer overflows
• Fix bug #74782:…

Stack-based buffer overflow vulnerability in virtual_file_ex() (CVE-2016-6289).

Use After Free in unserialize() with Unexpected Session Deserialization (CVE-2016-6290).

Out of bound read in exif_process_IFD_in_MAKERNOTE() (CVE-2016-6291).

NULL Pointer Dereference in exif_process_user_comment() (CVE-2016-6292).

locale_accept_from_http() out-of-bounds access (CVE-2016-6294).

Use After Free Vulnerability in SNMP with GC and unserialize() (CVE-2016-6295).

heap-buffer-overflow (write) simplestring_addn() simplestring.c in php-xmlrpc (CVE-2016-6296).

Stack-based buffer overflow vulnerability in php_stream_zip_opener() (CVE-2016-6297).

The php package has been updated to version 5.6.24, fixing these issues and several other bugs. See the upstream ChangeLog for details.

The CVE-2016-6296 issue was in the xmlrpc-epi library, which has been patched.

Additionally, the timezone and php-timezonedb packages have been updated with the latest timezone data.

This update for php53 fixes the following issues:

This security issue was fixed:

• CVE-2017-7272: PHP enabled potential SSRF in applications that accept an fsockopen hostname argument with an expectation that the port number is constrained. Because a :port syntax was recognized, fsockopen used the port number that is specified in the hostname argument, instead of the port number in the second argument of the function (bsc#1031246)
• CVE-2016-6294: The locale_accept_from_http function in ext/intl/locale/locale_methods.c did not properly restrict calls to the ICU uloc_acceptLanguageFromHTTP function, which allowed remote attackers to cause a denial of service (out-of-bounds read) or possibly have unspecified other impact via a call with a long argument (bsc#1035111).
• CVE-2017-9227: An issue was discovered in Oniguruma 6.2.0, as used in mbstring in PHP. A stack out-of-bounds read occurs in mbc_enc_len() during regular expression searching. Invalid handling of reg->dmin in forward_search_range() could result in an invalid pointer dereference, as an out-of-bounds read from a stack buffer. (bsc#1040883)
• CVE-2017-9226: An issue was discovered in Oniguruma 6.2.0, as used in Oniguruma-mod in mbstring in PHP. A heap out-of-bounds write or read occurs in next_state_val() during regular expression compilation. Octal numbers larger than 0xff are not handled correctly in fetch_token() and fetch_token_in_cc(). A malformed regular expression containing an octal number in the form of '\700' would produce an invalid code point value larger than 0xff in next_state_val(), resulting in an out-of-bounds write memory corruption. (bsc#1040889)
• CVE-2017-9224: An issue was discovered in Oniguruma 6.2.0, as used in Oniguruma-mod in mbstring in PHP. A stack out-of-bounds read occurs in match_at() during regular expression searching. A logical error involving order of validation and access in match_at() could result in an out-of-bounds read from a stack buffer. (bsc#1040891)

This update for php5 fixes the following security issues:

• CVE-2016-6294: The locale_accept_from_http function in ext/intl/locale/locale_methods.c did not properly restrict calls to the ICU uloc_acceptLanguageFromHTTP function, which allowed remote attackers to cause a denial of service (out-of-bounds read) or possibly have unspecified other impact via a call with a long argument (bsc#1035111).
• CVE-2017-9227: A stack out-of-bounds read occurs in mbc_enc_len() during regular expression searching. (bsc#1040883)
• CVE-2017-9226: A heap out-of-bounds write or read occurs in next_state_val() during regular expression compilation. (bsc#1040889)
• CVE-2017-9224: A stack out-of-bounds read occurs in match_at() during regular expression searching. (bsc#1040891)

This update for php7 fixes the following security issues:

• CVE-2017-9224: stack out-of-bounds read occurs in match_at() could lead to Denial of service (bsc#1040891)
• CVE-2017-9226: heap out-of-bounds write orread occurs in next_state_val() could lead to Denial of service(bsc#1040889)
• CVE-2017-9227: stack out-of-bounds read in mbc_enc_len() could lead to Denial of service (bsc#1040883)
• CVE-2017-6441: The _zval_get_long_func_ex in Zend/zend_operators.c in PHP allowed attackers to cause a denial of service (NULL pointer dereference and application crash) via crafted use of 'declare(ticks=' in a PHP script (bsc#1032155).
• CVE-2016-6294: The locale_accept_from_http function in ext/intl/locale/locale_methods.c did not properly restrict calls to the ICU uloc_acceptLanguageFromHTTP function, which allowed remote attackers to cause a denial of service (out-of-bounds read) or possibly have unspecified other impact via a call with a long argument (bsc#1035111).

It was discovered that PHP incorrectly handled certain SplMinHeap::compare operations. A remote attacker could use this issue to cause PHP to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. (CVE-2015-4116)

It was discovered that PHP incorrectly handled recursive method calls. A remote attacker could use this issue to cause PHP to crash, resulting in a denial of service. This issue only affected Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. (CVE-2015-8873)

It was discovered that PHP incorrectly validated certain Exception objects when unserializing data. A remote attacker could use this issue to cause PHP to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. (CVE-2015-8876)

It was discovered that PHP header() function performed insufficient filtering for Internet Explorer. A remote attacker could possibly use this issue to perform a XSS attack. This issue only affected Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. (CVE-2015-8935)

It was discovered that PHP incorrectly handled certain locale operations. An attacker could use this issue to cause PHP to crash, resulting in a denial of service. This issue only affected Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. (CVE-2016-5093)

It was discovered that the PHP php_html_entities() function incorrectly handled certain string lengths. A remote attacker could use this issue to cause PHP to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. (CVE-2016-5094, CVE-2016-5095)

It was discovered that the PHP fread() function incorrectly handled certain lengths. An attacker could use this issue to cause PHP to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. (CVE-2016-5096)

It was discovered that the PHP FastCGI Process Manager (FPM) SAPI incorrectly handled memory in the access logging feature. An attacker could use this issue to cause PHP to crash, resulting in a denial of service, or possibly expose sensitive information. This issue only affected Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. (CVE-2016-5114)

It was discovered that PHP would not protect applications from contents of the HTTP_PROXY environment variable when based on the contents of the Proxy header from HTTP requests. A remote attacker could possibly use this issue in combination with scripts that honour the HTTP_PROXY variable to redirect outgoing HTTP requests. (CVE-2016-5385)

Hans Jerry Illikainen discovered that the PHP bzread() function incorrectly performed error handling. A remote attacker could use this issue to cause PHP to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2016-5399)

It was discovered that certain PHP multibyte string functions incorrectly handled memory. A remote attacker could use this issue to cause PHP to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 14.04 LTS. (CVE-2016-5768)

It was discovered that the PHP Mcrypt extension incorrectly handled memory. A remote attacker could use this issue to cause PHP to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. (CVE-2016-5769)

It was discovered that the PHP garbage collector incorrectly handled certain objects when unserializing malicious data. A remote attacker could use this issue to cause PHP to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue was only addressed in Ubuntu Ubuntu 14.04 LTS. (CVE-2016-5771, CVE-2016-5773)

It was discovered that PHP incorrectly handled memory when unserializing malicious xml data. A remote attacker could use this issue to cause PHP to crash, resulting in a…