Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Libra | Libra Core | < 2019-09-03 |
References
- https://blog.openzeppelin.com/libra-vulnerability-release/Third Party Advisory
- https://blog.openzeppelin.com/libra-vulnerability-summary/ExploitThird Party Advisory
- https://github.com/libra/libra/commit/7efb0221989f17fdf7f8486730898ed947a1e19ePatchThird Party Advisory
- https://blog.openzeppelin.com/libra-vulnerability-release/Third Party Advisory
- https://blog.openzeppelin.com/libra-vulnerability-summary/ExploitThird Party Advisory
- https://github.com/libra/libra/commit/7efb0221989f17fdf7f8486730898ed947a1e19ePatchThird Party Advisory
FAQ
What is CVE-2019-16214?
CVE-2019-16214 is a vulnerability with a CVSS score of 5.7 (MEDIUM). 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 fo...
How severe is CVE-2019-16214?
CVE-2019-16214 has been rated MEDIUM with a CVSS base score of 5.7/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2019-16214?
Check the references section above for vendor advisories and patch information. Affected products include: Libra Libra Core.