The iconv_mime_decode_headers function in the Iconv extension in PHP before 5.3.4 does not properly handle encodings that are unrecognized by the iconv and mbstring (aka Multibyte String) implementations, which allows remote attackers to trigger an incomplete output array, and possibly bypass spam detection or have unspecified other impact, via a crafted Subject header in an e-mail message, as demonstrated by the ks_c_5601-1987 character set.
Vector
NETWORK
Complexity
LOW
Authentication
NONE
Confidentiality
NONE
Integrity
PARTIAL
Availability
NONE
PHP 5.2.16
PHP 5.2.15
PHP 5.2.14
PHP 5.2.13
PHP 5.2.12
PHP 5.2.11
PHP 5.2.10
PHP 5.2.9
PHP 5.2.8
PHP 5.2.7
PHP 5.2.6
PHP 5.2.5
Php Php 5.2.4 Windows (not an official CPE)
PHP 5.2.4
PHP 5.2.3
PHP 5.2.2
PHP 5.2.1
PHP 5.2.0
PHP PHP 5.1.6
PHP PHP 5.1.5
PHP 5.1.4
PHP PHP 5.1.3
PHP PHP 5.1.2
PHP PHP 5.1.1
PHP PHP 5.1.0
PHP PHP 5.0.5
PHP PHP 5.0.4
PHP PHP 5.0.3
PHP PHP 5.0.1
PHP PHP 5.0.2
PHP PHP 5.0.0 RC3
PHP PHP 5.0.0 RC2
PHP PHP 5.0.0 RC1
PHP PHP 5.0.0 Beta4
PHP PHP 5.0.0 Beta3
PHP PHP 5.0.0 Beta2
PHP PHP 5.0.0 Beta1
PHP PHP 5.0.0
PHP 4.4.9
PHP 4.4.8
PHP PHP 4.4.7
PHP PHP 4.4.6
PHP PHP 4.4.5
PHP PHP 4.4.4
PHP PHP 4.4.3
PHP PHP 4.4.2
PHP PHP 4.4.1
PHP PHP 4.4.0
PHP PHP 4.3.11
PHP PHP 4.3.10
PHP PHP 4.3.9
PHP PHP 4.3.8
PHP PHP 4.3.7
PHP PHP 4.3.6
PHP PHP 4.3.5
PHP PHP 4.3.4
PHP PHP 4.3.3
PHP PHP 4.3.2
PHP PHP 4.3.1
PHP PHP 4.3.0
PHP PHP 4.2.3
PHP PHP 4.2.2
PHP PHP 4.2.1
PHP PHP 4.2.0
PHP PHP 4.1.2
PHP PHP 4.1.1
PHP PHP 4.1.0
PHP PHP 4.0.6
PHP PHP 4.0.7
PHP PHP 4.0.5
PHP PHP 4.0.4
PHP PHP 4.0.3
PHP PHP 4.0.2
PHP PHP 4.0.1
PHP PHP 4.0.0
PHP PHP 4.0 Beta 4 Patch Level 1
PHP PHP 4.0 Beta 4
PHP PHP 4.0 Beta 3
PHP PHP 4.0 Beta 2
PHP PHP 4.0 Beta 1
Php Php 4.0 (not an official CPE)
PHP PHP 3.0.18
PHP PHP 3.0.17
PHP PHP 3.0.16
PHP PHP 3.0.15
PHP PHP 3.0.14
PHP PHP 3.0.13
PHP PHP 3.0.12
PHP PHP 3.0.11
PHP PHP 3.0.10
PHP PHP 3.0.9
PHP PHP 3.0.8
PHP PHP 3.0.7
PHP PHP 3.0.6
PHP PHP 3.0.5
PHP PHP 3.0.4
PHP PHP 3.0.3
PHP PHP 3.0.2
PHP PHP 3.0.1
PHP PHP 3.0
PHP PHP_FI 2.0b10
PHP PHP_FI 2.0
PHP PHP_FI 1.0
PHP 5.2.17
PHP 5.3.0
PHP 5.3.1
PHP 5.3.2
PHP 5.3.3