- Reported
-
- Issued
-
- Package
-
through
(crates.io)
- Type
-
Vulnerability
- Categories
-
- Keywords
-
#memory-safety
#double-free
- Aliases
-
- Details
-
https://github.com/gretchenfrage/through/issues/1
- CVSS Score
- 9.8
CRITICAL
- CVSS Details
-
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
- CVSS Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Patched
-
no patched versions
Description
through and through_and take a mutable reference as well as a mapping
function to change the provided reference. They do this by calling ptr::read
on the reference which duplicates ownership and then calling the mapping
function.
If the mapping function panics, both the original object and the one
duplicated by ptr::read get dropped, causing a double free.