| Package | Affected versions | Patched versions |
|---|---|---|
| php | ≥ 8.2.0, < 8.2.34≥ 8.3.0, < 8.3.35≥ 8.4.0, < 8.4.26≥ 8.5.0, < 8.5.11 | 8.2.348.3.358.4.268.5.11 |
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.
Running one of these products? Scan your site to see whether it exposes a vulnerable version.
Scan my site free