This project might be open to known security vulnerabilities, which can be prevented by tightening the version range of affected dependencies. Find detailed information at the bottom.
svc-authn(7 total, 3 outdated, 3 possibly insecure)
| Crate | Required | Latest | Status |
|---|---|---|---|
| chrono ⚠️ | ^0.4 | 0.4.41 | maybe insecure |
| diesel ⚠️ | ^1.4 | 2.2.11 | out of date |
| http ⚠️ | ^0.1 | 1.3.1 | out of date |
| jsonwebtoken | ^6.0 | 9.3.1 | out of date |
| serde | ^1.0 | 1.0.219 | up to date |
| serde_derive | ^1.0 | 1.0.219 | up to date |
| tower-web | ^0.3 | 0.3.7 | up to date |
http: Integer Overflow in HeaderMap::reserve() can cause Denial of ServiceHeaderMap::reserve() used usize::next_power_of_two() to calculate the increased capacity.
However, next_power_of_two() silently overflows to 0 if given a sufficiently large number
in release mode.
If the map was not empty when the overflow happens,
the library will invoke self.grow(0) and start infinite probing.
This allows an attacker who controls the argument to reserve()
to cause a potential denial of service (DoS).
The flaw was corrected in 0.1.20 release of http crate.
http: HeaderMap::Drain API is unsoundAffected versions of this crate incorrectly used raw pointer, which introduced unsoundness in its public safe API.
Failing to drop the Drain struct causes double-free, and it is possible to violate Rust's alias rule and cause data race with Drain's Iterator implementation.
The flaw was corrected in 0.1.20 release of http crate.
chrono: Potential segfault in `localtime_r` invocationsUnix-like operating systems may segfault due to dereferencing a dangling pointer in specific circumstances. This requires an environment variable to be set in a different thread than the affected functions. This may occur without the user's knowledge, notably in a third-party library.
No workarounds are known.
diesel: Binary Protocol Misinterpretation caused by Truncating or Overflowing CastsThe following presentation at this year's DEF CON was brought to our attention on the Diesel Gitter Channel:
SQL Injection isn't Dead: Smuggling Queries at the Protocol Level
http://web.archive.org/web/20240812130923/https://media.defcon.org/DEF%20CON%2032/DEF%20CON%2032%20presentations/DEF%20CON%2032%20-%20Paul%20Gerste%20-%20SQL%20Injection%20Isn't%20Dead%20Smuggling%20Queries%20at%20the%20Protocol%20Level.pdf
(Archive link for posterity.) Essentially, encoding a value larger than 4GiB can cause the length prefix in the protocol to overflow, causing the server to interpret the rest of the string as binary protocol commands or other data.
It appears Diesel does perform truncating casts in a way that could be problematic, for example: https://github.com/diesel-rs/diesel/blob/ae82c4a5a133db65612b7436356f549bfecda1c7/diesel/src/pg/connection/stmt/mod.rs#L36
This code has existed essentially since the beginning,
so it is reasonable to assume that all published versions <= 2.2.2 are affected.
The prefered migration to the outlined problem is to update to a Diesel version newer than 2.2.2, which includes fixes for the problem.
As always, you should make sure your application is validating untrustworthy user input. Reject any input over 4 GiB, or any input that could encode to a string longer than 4 GiB. Dynamically built queries are also potentially problematic if it pushes the message size over this 4 GiB bound.
For web application backends, consider adding some middleware that limits the size of request bodies by default.
Diesel now uses #[deny] directives for the following Clippy lints:
to prevent casts that will lead to precision loss or other trunctations. Additionally we performed an audit of the relevant code.
A fix is included in the 2.2.3 release.