Описание
Use of Uninitialized Resource in tectonic_xdv
Affected versions of this crate passes an uninitialized buffer to a user-provided Read implementation.
Arbitrary Read implementations can read from the uninitialized buffer (memory exposure) and also can return incorrect number of bytes written to the buffer. Reading from uninitialized memory produces undefined values that can quickly invoke undefined behavior.
The problem was fixed in commit cdff034 by zero-initializing the buffer before passing it to a user-provided Read implementation.
Ссылки
- https://nvd.nist.gov/vuln/detail/CVE-2021-45703
- https://github.com/tectonic-typesetting/tectonic/issues/752
- https://github.com/tectonic-typesetting/tectonic/commit/cdff034e6d93cdfdafd13d8c6956e22fa5a57b79
- https://github.com/tectonic-typesetting/tectonic
- https://raw.githubusercontent.com/rustsec/advisory-db/main/crates/tectonic_xdv/RUSTSEC-2021-0112.md
- https://rustsec.org/advisories/RUSTSEC-2021-0112.html
Пакеты
Наименование
tectonic_xdv
rust
Затронутые версииВерсия исправления
< 0.1.12
0.1.12
Связанные уязвимости
CVSS3: 9.8
nvd
около 4 лет назад
An issue was discovered in the tectonic_xdv crate before 0.1.12 for Rust. XdvParser::<T>::process may read from uninitialized memory locations.