Reported

March 27, 2020

Issued

October 2, 2020 (last modified: October 19, 2021)

Package

bitvec (crates.io)

Type

Vulnerability

Categories

• memory-corruption

Aliases

• CVE-2020-35862

Details

https://github.com/myrrlyn/bitvec/issues/55

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

• >=0.17.4

Unaffected

• <0.11.0

Affected Functions

Version

bitvec::vec::BitVec::into_boxed_bitslice

• <0.17.4, >=0.11.0

Description

Conversion of BitVec to BitBox did not account for allocation movement.

The flaw was corrected by using the address after resizing, rather than the original base address.