- Issued
-
- Package
-
rgb
(crates.io)
- Type
-
INFO
Unsound
- Keywords
-
#type-confusion
- Aliases
-
- Details
-
https://github.com/kornelski/rust-rgb/issues/35
- CVSS Score
- 9.1
CRITICAL
- CVSS Details
-
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- None
- CVSS Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
- Patched
-
- Unaffected
-
Description
Affected versions of rgb crate allow viewing and modifying data of any type T wrapped in RGB<T> as bytes,
and do not correctly constrain RGB<T> and other wrapper structures to the types for which it is safe to do so.
Safety violation possible for a type wrapped in RGB<T> and similar wrapper structures:
- If
T contains padding, viewing it as bytes may lead to exposure of contents of uninitialized memory.
- If
T contains a pointer, modifying it as bytes may lead to dereferencing of arbitrary pointers.
- Any safety and/or validity invariants for
T may be violated.
The issue was resolved by requiring all types wrapped in structures provided by RGB crate to implement an unsafe marker trait.