CVE-2021-45703 Duplicate Advisory: `Read` on uninitialized buffer may cause UB ('tectonic_xdv' crate)
An attacker can read uninitialized memory via the tectonic_xdv crate, potentially exposing sensitive data.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2021-45703?
CVE-2021-45703 is a critical vulnerability in n/a, published on 26 Dec 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An issue was discovered in the tectonic_xdv crate before 0.1.12 for Rust. XdvParser::<T>::process may read from uninitialized memory locations.
Weakness: CWE-908
Which versions are affected by CVE-2021-45703?
5 open source packages ship an affected version, including tectonic_xdv. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
tectonic_xdv crates.io | All versions | 0.1.12 |
tectonic_xdv crates.io | All versions | 0.1.12 |
tectonic_xdv crates.io | All versions | 0.1.12 |
tectonic_xdv crates.io | All versions | 0.1.12 |
tectonic_xdv crates.io | From 0.0.0-0 | 0.1.12 |
Products include Tectonic Xdv Project Tectonic Xdv.
How do I fix CVE-2021-45703?
Upgrade tectonic_xdv to 0.1.12 or later.
Is CVE-2021-45703 being exploited?
There is no known exploitation of CVE-2021-45703 in the wild and no public exploit code.
Sources
Also known as GHSA-6692-8qqf-79jc, GHSA-qwvx-c8j7-5g75, RUSTSEC-2021-0112.