CVE-2016-7411

ext/standard/var_unserializer.re in PHP before 5.6.26 mishandles object-deserialization failures, which allows remote attackers to cause a denial of service (memory corruption) or possibly have unspecified other impact via an unserialize call that references a partially constructed object.

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 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)