CVSS 3.1
Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)
Атакува се
Време до експлоатация
Атакува се по мрежата, без особени условия, без вход и без действие от потребителя.
- Експлоатация: има публичен пример за експлоатация
- Атаката може да се автоматизира
Описание
Оригинално описание
Imager versions from 0.45_02 before 1.034 for Perl may expose adjacent heap bytes via strlen() over-read from zero-count ASCII EXIF entries in copy_string_tags. copy_string_tags() computes an ASCII EXIF tag's length as `entry->size - 1` to strip the trailing NUL. A zero-count ASCII entry sets `entry->size` to 0, and the derived length reaches i_tags_add() as -1, which is interpreted as a request to call strlen(), scanning past the entry to the next NUL and copying those bytes into the tag. JPEG reaches this path via im_decode_exif(), as does the separate Imager::File::WEBP distribution, which is fixed by upgrading Imager. Any caller of Imager->read() on an attacker-supplied image with such an entry may receive an exif_* tag holding adjacent heap bytes instead of an empty string.
Засегнати продукти
- TONYC Imager: 0.45_02 преди 1.034
Вид слабост
История
- 7 август 2026 Публикувано
Други уязвимости в TONYC Imager
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-19082
- https://nvd.nist.gov/vuln/detail/CVE-2026-19082
- https://github.com/tonycoz/imager/security/advisories/GHSA-hx46-55wp-hv6m
- https://github.com/tonycoz/imager/commit/24bde0427a113264d53f45a9c29ae756d84c82fe.patch
- https://metacpan.org/release/TONYC/Imager-1.034/changes
- http://www.openwall.com/lists/oss-security/2026/08/07/6