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CVE-2026-6103
MEDIUM(4.3)CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
Risk Signal Score16/100 — NIEDRIG
- CVSS 4.3 — Mittel
Erwähnungen (letzte 60 Tage)
Artikel
EPSS-Score
0.2%
Exploit-Wahrscheinlichkeit (30 Tage)
CVSS Score
4.3
Technische Schwere
Beschreibung
phar_tar_number() parses the octal size field of a TAR header into a uint32_t 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-controlled file content as the next TAR header, which lets a crafted archive inject entries that PharData reports and extracts as if they were genuine.