php: PHP: Archive entry injection via integer overflow in TAR parser

A flaw was found in PHP. An integer overflow vulnerability in the Phar extension occurs when parsing TAR archive headers containing excessively large size fields. An attacker can exploit this issue by supplying a specially crafted archive file to an application that processes TAR archives, causin...

Security update for php8

This update for php8 fixes the following issues: CVE-2025-1218: php: php: Denial of Service via out-of-bounds read in mysqlnd wire protocol parser bsc1282981. CVE-2025-14181: Integer overflow to buffer overflow in soap HTTP parsing bsc1283216. CVE-2026-6103: Archive entry injection via integer...

BIT-PHP-MIN-2026-6103 Phar TAR phar_tar_number() Integer Overflow - Archive Entry Injection

phartarnumber parses the octal size field of a TAR header into a uint32t with no overflow check. The field is 11 octal digits wide and holds values up to 0x1FFFFFFFF, so a size above 0xFFFFFFFF silently wraps. The parser then skips the wrong number of data blocks and interprets attacker-controlle...

BIT-PHP-2026-6103 Phar TAR phar_tar_number() Integer Overflow - Archive Entry Injection

phartarnumber parses the octal size field of a TAR header into a uint32t with no overflow check. The field is 11 octal digits wide and holds values up to 0x1FFFFFFFF, so a size above 0xFFFFFFFF silently wraps. The parser then skips the wrong number of data blocks and interprets attacker-controlle...

BIT-LIBPHP-2026-6103 Phar TAR phar_tar_number() Integer Overflow - Archive Entry Injection

phartarnumber parses the octal size field of a TAR header into a uint32t with no overflow check. The field is 11 octal digits wide and holds values up to 0x1FFFFFFFF, so a size above 0xFFFFFFFF silently wraps. The parser then skips the wrong number of data blocks and interprets attacker-controlle...

CVE-2026-6103 Phar TAR phar_tar_number() Integer Overflow - Archive Entry Injection

phartarnumber parses the octal size field of a TAR header into a uint32t with no overflow check. The field is 11 octal digits wide and holds values up to 0x1FFFFFFFF, so a size above 0xFFFFFFFF silently wraps. The parser then skips the wrong number of data blocks and interprets attacker-controlle...

CVE-2026-6103 Phar TAR phar_tar_number() Integer Overflow - Archive Entry Injection

phartarnumber parses the octal size field of a TAR header into a uint32t with no overflow check. The field is 11 octal digits wide and holds values up to 0x1FFFFFFFF, so a size above 0xFFFFFFFF silently wraps. The parser then skips the wrong number of data blocks and interprets attacker-controlle...

CVE-2026-6103 Phar TAR phar_tar_number() Integer Overflow - Archive Entry Injection

phartarnumber parses the octal size field of a TAR header into a uint32t with no overflow check. The field is 11 octal digits wide and holds values up to 0x1FFFFFFFF, so a size above 0xFFFFFFFF silently wraps. The parser then skips the wrong number of data blocks and interprets attacker-controlle...

CVE-2026-6103: Integer Overflow or Wraparound

phartarnumber parses the octal size field of a TAR header into a uint32t with no overflow check. The field is 11 octal digits wide and holds values up to 0x1FFFFFFFF, so a size above 0xFFFFFFFF silently wraps. The parser then skips the wrong number of data blocks and interprets attacker-controlle...