HistoryEdit

RUSTSEC-2019-0011

Flaw in offset_of and span_of causes SIGILL, drops uninitialized memory of arbitrary type on panic in client code

Reported
Issued
Package
memoffset (crates.io)
Type
INFO Unsound
Aliases
Details
https://github.com/Gilnaa/memoffset/issues/9#issuecomment-505461490
CVSS Score
7.5 HIGH
CVSS Details
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
CVSS Vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Patched
  • >=0.5.0

Description

Affected versions of this crate caused traps and/or memory unsafety by zero-initializing references. They also could lead to uninitialized memory being dropped if the field for which the offset is requested was behind a deref coercion, and that deref coercion caused a panic.

The flaw was corrected by using MaybeUninit.