National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2019-16214 Detail

Current Description

Libra Core before 2019-09-03 has an erroneous regular expression for inline comments, which makes it easier for attackers to interfere with code auditing by using a nonstandard line-break character for a comment. For example, a Move module author can enter the // sequence (which introduces a single-line comment), followed by very brief comment text, the \r character, and code that has security-critical functionality. In many popular environments, this code is displayed on a separate line, and thus a reader may infer that the code is executed. However, the code is NOT executed, because language/compiler/ir_to_bytecode/src/parser.rs allows the comment to continue after the \r character.

Source:  MITRE
View Analysis Description

Impact

CVSS v3.1 Severity and Metrics:

Base Score: 5.7 MEDIUM
Vector: AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:N (V3.1 legend)
Impact Score: 3.6
Exploitability Score: 2.1


Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): Required
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): High
Availability (A): None

CVSS v2.0 Severity and Metrics:

Base Score: 3.5 LOW
Vector: (AV:N/AC:M/Au:S/C:N/I:P/A:N) (V2 legend)
Impact Subscore: 2.9
Exploitability Subscore: 6.8


Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (AU): Single
Confidentiality (C): None
Integrity (I): Partial
Availability (A): None
Additional Information:
Victim must voluntarily interact with attack mechanism
Allows unauthorized modification

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://blog.openzeppelin.com/libra-vulnerability-release/ Third Party Advisory
https://blog.openzeppelin.com/libra-vulnerability-summary/ Exploit Third Party Advisory
https://github.com/libra/libra/commit/7efb0221989f17fdf7f8486730898ed947a1e19e Patch Third Party Advisory

Technical Details

Vulnerability Type (View All)

  • Improper Input Validation (CWE-20)

Known Affected Software Configurations Switch to CPE 2.3

Configuration 1 ( hide )
 cpe:/a:libra:libra_core
     Show Matching CPE(s)
Up to (excluding)
2019-09-03


Change History

1 change record found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2019-16214
NVD Published Date:
09/11/2019
NVD Last Modified:
09/11/2019