CVE-2019-16214 Other in n/a
Libra Core's parser mishandles carriage returns in comments, allowing code to be hidden from auditors while remaining executable, bypassing security reviews.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2019-16214?
CVE-2019-16214 is a medium-severity vulnerability in n/a, published on 11 Sep 2019. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official 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.
Which versions are affected by CVE-2019-16214?
It affects 1 product.
Products include Libra Libra Core.
How do I fix CVE-2019-16214?
No fix has been published for CVE-2019-16214 yet. Limit exposure of the affected software until one is available.
Is CVE-2019-16214 being exploited?
There is no known exploitation of CVE-2019-16214 in the wild and no public exploit code.
Sources
Also known as GHSA-r66w-gh88-5cgc.