GHSA-6692-8qqf-79jc – tectonic_xdv

Package

Manager: cargo
Name: tectonic_xdv
Vulnerable Version: >=0 <0.1.12

Severity

Level: High

CVSS v3.1: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N/E:P/RL:O/RC:R

CVSS v4.0: CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

EPSS: N/A pctlN/A

Details

`Read` on uninitialized buffer may cause UB ('tectonic_xdv' crate) 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.

Metadata

Created: 2022-06-17T00:24:29Z
Modified: 2022-06-17T00:24:29Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/06/GHSA-6692-8qqf-79jc/GHSA-6692-8qqf-79jc.json
CWE IDs: []
Alternative ID: N/A
Finding: F138
Auto approve: 1