Rust advisories / bcder
Vulnerability HighRUSTSEC-2023-0062 · bcder
RUSTSEC-2023-0062: BER/CER/DER decoder panics on invalid input
Short answerA security vulnerability in the bcder crate: BER/CER/DER decoder panics on invalid input. High severity (CVSS 7.5). Fixed in 0.7.3: update to a fixed version.
| Crate | bcder |
|---|---|
| Type | Vulnerability (denial-of-service) |
| Affected versions | Before 0.7.3. |
| Fixed in | 0.7.3 |
| Severity | High, CVSS 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| Published | 2023-09-13 |
| Last changed | 2024-02-10 |
| Also known as | CVE-2023-39914, GHSA-6jmw-6mxw-w4jc |
What to do
- See which version you have:
cargo tree -i bcder(it also shows which of your dependencies pulls it in). - Update within your version requirement:
cargo update -p bcder. If the fix is a newer major or minor than your requirement allows, raise it in Cargo.toml (for examplebcder = "0.7.3") or update the dependency that pulls it in. - Check again with
cargo audit, or paste your Cargo.lock into our Cargo.toml checker.
Details from the advisory
Due to insufficient checking of input data, decoding certain data sequences can lead to _bcder_ panicking rather than returning an error. This can affect both the actual decoding stage as well as accessing content of types that utilized delayed decoding.
bcder 0.7.3 fixes these issues by more thoroughly checking inputs and returning errors as expected.
References
- Package: crates.io/crates/bcder
- Advisory: rustsec.org/advisories/RUSTSEC-2023-0062.html
- Web: nlnetlabs.nl/downloads/bcder/CVE-2023-39914.txt
- Web: github.com/NLnetLabs/bcder/pull/74
From the RustSec Advisory Database (CC0-1.0) via the OSV export, downloaded Oct 24, 2026. Severity score computed from the published CVSS vector.
Up next
Are you affected?Check your whole dependency treePaste Cargo.lock: every advisory, for your exact versions.Read it next →Also worth your time
Did this answer your question?