CVE-2016-7412

ext/mysqlnd/mysqlnd_wireprotocol.c in PHP before 5.6.26 and 7.x before 7.0.11 does not verify that a BIT field has the UNSIGNED_FLAG flag, which allows remote MySQL servers to cause a denial of service (heap-based buffer overflow) or possibly have unspecified other impact via crafted field metadata.

• 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:…

Memory Corruption in During Deserialized-object Destruction) (CVE-2016-7411).

Heap overflow in mysqlnd related to BIT fields) (CVE-2016-7412).

wddx_deserialize use-after-free (CVE-2016-7413).

Out of bound when verify signature of zip phar in phar_parse_zipfile) (CVE-2016-7414).

Missing locale length check in php-intl (CVE-2016-7416).

Missing type check when unserializing SplArray) (CVE-2016-7417).

Out-Of-Bounds Read in php_wddx_push_element) (CVE-2016-7418).

The php package has been updated to version 5.6.26, which fixes these issues and other bugs. See the upstream ChangeLog for more details.

This update for php53 fixes the following security issues:

• CVE-2016-7124: Create an Unexpected Object and Don't Invoke __wakeup() in Deserialization
• CVE-2016-7125: PHP Session Data Injection Vulnerability
• CVE-2016-7126: select_colors write out-of-bounds
• CVE-2016-7127: imagegammacorrect allowed arbitrary write access
• CVE-2016-7128: Memory Leakage In exif_process_IFD_in_TIFF
• CVE-2016-7129: wddx_deserialize allows illegal memory access
• CVE-2016-7130: wddx_deserialize null dereference
• CVE-2016-7131: wddx_deserialize null dereference with invalid xml
• CVE-2016-7132: wddx_deserialize null dereference in php_wddx_pop_element
• CVE-2016-7411: php5: Memory corruption when destructing deserialized object
• CVE-2016-7412: Heap overflow in mysqlnd when not receiving UNSIGNED_FLAG in BIT field
• CVE-2016-7413: Use after free in wddx_deserialize
• CVE-2016-7414: Out of bounds heap read when verifying signature of zip phar in phar_parse_zipfile
• CVE-2016-7416: Stack based buffer overflow in msgfmt_format_message
• CVE-2016-7417: Missing type check when unserializing SplArray
• CVE-2016-7418: Null pointer dereference in php_wddx_push_element

This update for php7 fixes the following security issues:

• CVE-2016-6128: Invalid color index not properly handled [bsc#987580]
• CVE-2016-6161: global out of bounds read when encoding gif from malformed input withgd2togif [bsc#988032]
• CVE-2016-6292: Null pointer dereference in exif_process_user_comment [bsc#991422]
• CVE-2016-6295: Use after free in SNMP with GC and unserialize() [bsc#991424]
• CVE-2016-6297: Stack-based buffer overflow vulnerability in php_stream_zip_opener [bsc#991426]
• CVE-2016-6291: Out-of-bounds access in exif_process_IFD_in_MAKERNOTE [bsc#991427]
• CVE-2016-6289: Integer overflow leads to buffer overflow in virtual_file_ex [bsc#991428]
• CVE-2016-6290: Use after free in unserialize() with Unexpected Session Deserialization [bsc#991429]
• CVE-2016-5399: Improper error handling in bzread() [bsc#991430]
• CVE-2016-6296: Heap buffer overflow vulnerability in simplestring_addn in simplestring.c [bsc#991437]
• CVE-2016-6207: Integer overflow error within _gdContributionsAlloc() [bsc#991434]
• CVE-2016-4473: Invalid free() instead of efree() in phar_extract_file()
• CVE-2016-7124: Create an Unexpected Object and Don't Invoke __wakeup() in Deserialization
• CVE-2016-7125: PHP Session Data Injection Vulnerability
• CVE-2016-7126: select_colors write out-of-bounds
• CVE-2016-7127: imagegammacorrect allowed arbitrary write access
• CVE-2016-7128: Memory Leakage In exif_process_IFD_in_TIFF
• CVE-2016-7129: wddx_deserialize allowed illegal memory access
• CVE-2016-7131: wddx_deserialize null dereference with invalid xml
• CVE-2016-7132: wddx_deserialize null dereference in php_wddx_pop_element
• CVE-2016-7133: memory allocator fails to realloc small block to large one
• CVE-2016-7134: Heap overflow in the function curl_escape
• CVE-2016-7130: wddx_deserialize null dereference
• CVE-2016-7413: Use after free in wddx_deserialize
• CVE-2016-7412: Heap overflow in mysqlnd when not receiving UNSIGNED_FLAG in BIT field
• CVE-2016-7417: Missing type check when unserializing SplArray
• CVE-2016-7416: Stack based buffer overflow in msgfmt_format_message
• CVE-2016-7418: Null pointer dereference in php_wddx_push_element
• CVE-2016-7414: Out of bounds heap read when verifying signature of zip phar in phar_parse_zipfile

This update for php7 fixes the following security issues:

• CVE-2016-6128: Invalid color index not properly handled [bsc#987580]
• CVE-2016-6161: global out of bounds read when encoding gif from malformed input withgd2togif [bsc#988032]
• CVE-2016-6292: Null pointer dereference in exif_process_user_comment [bsc#991422]
• CVE-2016-6295: Use after free in SNMP with GC and unserialize() [bsc#991424]
• CVE-2016-6297: Stack-based buffer overflow vulnerability in php_stream_zip_opener [bsc#991426]
• CVE-2016-6291: Out-of-bounds access in exif_process_IFD_in_MAKERNOTE [bsc#991427]
• CVE-2016-6289: Integer overflow leads to buffer overflow in virtual_file_ex [bsc#991428]
• CVE-2016-6290: Use after free in unserialize() with Unexpected Session Deserialization [bsc#991429]
• CVE-2016-5399: Improper error handling in bzread() [bsc#991430]
• CVE-2016-6296: Heap buffer overflow vulnerability in simplestring_addn in simplestring.c [bsc#991437]
• CVE-2016-6207: Integer overflow error within _gdContributionsAlloc() [bsc#991434]
• CVE-2016-4473: Invalid free() instead of efree() in phar_extract_file()
• CVE-2016-7124: Create an Unexpected Object and Don't Invoke __wakeup() in Deserialization
• CVE-2016-7125: PHP Session Data Injection Vulnerability
• CVE-2016-7126: select_colors write out-of-bounds
• CVE-2016-7127: imagegammacorrect allowed arbitrary write access
• CVE-2016-7128: Memory Leakage In exif_process_IFD_in_TIFF
• CVE-2016-7129: wddx_deserialize allowed illegal memory access
• CVE-2016-7131: wddx_deserialize null dereference with invalid xml
• CVE-2016-7132: wddx_deserialize null dereference in php_wddx_pop_element
• CVE-2016-7133: memory allocator fails to realloc small block to large one
• CVE-2016-7134: Heap overflow in the function curl_escape
• CVE-2016-7130: wddx_deserialize null dereference
• CVE-2016-7413: Use after free in wddx_deserialize
• CVE-2016-7412: Heap overflow in mysqlnd when not receiving UNSIGNED_FLAG in BIT field
• CVE-2016-7417: Missing type check when unserializing SplArray
• CVE-2016-7416: Stack based buffer overflow in msgfmt_format_message
• CVE-2016-7418: Null pointer dereference in php_wddx_push_element
• CVE-2016-7414: Out of bounds heap read when verifying signature of zip phar in phar_parse_zipfile

This update for php53 fixes the following issues:

• CVE-2016-7411: php5: Memory corruption when destructing deserialized object
• CVE-2016-7412: Heap overflow in mysqlnd when not receiving UNSIGNED_FLAG in BIT field
• CVE-2016-7413: Use after free in wddx_deserialize
• CVE-2016-7414: Out of bounds heap read when verifying signature of zip phar in phar_parse_zipfile
• CVE-2016-7416: Stack based buffer overflow in msgfmt_format_message
• CVE-2016-7417: Missing type check when unserializing SplArray
• CVE-2016-7418: Null pointer dereference in php_wddx_push_element

This update for php5 fixes the following security issues:

• CVE-2016-7411: php5: Memory corruption when destructing deserialized object
• CVE-2016-7412: Heap overflow in mysqlnd when not receiving UNSIGNED_FLAG in BIT field
• CVE-2016-7413: Use after free in wddx_deserialize
• CVE-2016-7414: Out of bounds heap read when verifying signature of zip phar in phar_parse_zipfile
• CVE-2016-7416: Stack based buffer overflow in msgfmt_format_message
• CVE-2016-7417: Missing type check when unserializing SplArray
• CVE-2016-7418: Null pointer dereference in php_wddx_push_element

This update for php5 fixes the following security issues:

• CVE-2016-7411: php5: Memory corruption when destructing deserialized object
• CVE-2016-7412: Heap overflow in mysqlnd when not receiving UNSIGNED_FLAG in BIT field
• CVE-2016-7413: Use after free in wddx_deserialize
• CVE-2016-7414: Out of bounds heap read when verifying signature of zip phar in phar_parse_zipfile
• CVE-2016-7416: Stack based buffer overflow in msgfmt_format_message
• CVE-2016-7417: Missing type check when unserializing SplArray
• CVE-2016-7418: Null pointer dereference in php_wddx_push_element

Taoguang Chen discovered that PHP incorrectly handled certain invalid 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. (CVE-2016-7124)

Taoguang Chen discovered that PHP incorrectly handled invalid session names. A remote attacker could use this issue to inject arbitrary session data. (CVE-2016-7125)

It was discovered that PHP incorrectly handled certain gamma values in the imagegammacorrect function. A remote attacker could use this issue to cause PHP to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2016-7127)

It was discovered that PHP incorrectly handled certain crafted TIFF image thumbnails. A remote attacker could use this issue to cause PHP to crash, resulting in a denial of service, or possibly expose sensitive information. (CVE-2016-7128)

It was discovered that PHP incorrectly handled unserializing certain wddxPacket XML documents. A remote attacker could use this issue to cause PHP to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2016-7129, CVE-2016-7130, CVE-2016-7131, CVE-2016-7132, CVE-2016-7413)

It was discovered that PHP incorrectly handled certain memory 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 16.04 LTS. (CVE-2016-7133)

It was discovered that PHP incorrectly handled long strings in curl_escape calls. 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 16.04 LTS. (CVE-2016-7134)

Taoguang Chen discovered that PHP incorrectly handled certain failures 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-2016-7411)

It was discovered that PHP incorrectly handled certain flags in the MySQL driver. Malicious remote MySQL servers could use this issue to cause PHP to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2016-7412)

It was discovered that PHP incorrectly handled ZIP file signature verification when processing a PHAR archive. A remote attacker could use this issue to cause PHP to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2016-7414)

It was discovered that PHP incorrectly handled certain locale operations. A remote attacker could use this issue to cause PHP to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2016-7416)

It was discovered that PHP incorrectly handled SplArray unserializing. A remote attacker could use this issue to cause PHP to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2016-7417)

Ke Liu discovered that PHP incorrectly handled unserializing wddxPacket XML documents with incorrect boolean elements. A remote attacker could use this issue to cause PHP to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2016-7418)