CVE-2018-20996

An issue was discovered in the crossbeam crate before 0.4.1 for Rust

published August 26, 2019

CVSS
—
EPSS
2%
Percentile
77.6
In the wild
Unconfirmed
What it is

⚠️ A double free issue lurking in the crossbeam crate can trip up your Rust code! This mishandling could lead to unpredictable behavior and potential crashes. ⚡ Think of it like a restaurant where the chef accidentally tries to serve the same dish twice—a recipe for confusion and possibly a disastrous meal! When destructors aren’t handled correctly, resources might be freed more than once, leading to chaos. If you're using an affected version before 0.4.1, the consequences can range from unstable behavior in your application to complete crashes. It's like a well-intentioned waiter who keeps dropping the same plate of food, leaving diners confused and frustrated. You don’t want your application to be that clumsy!

Put simply

Think of it like a restaurant where the chef accidentally tries to serve the same dish twice—a recipe for confusion and possibly a disastrous meal! When destructors aren’t handled correctly, resources might be freed more than once, leading to chaos. This vulnerability in the crossbeam crate is due to mishandling of destructors, which can lead to a double free error. This means that a particular resource may be deallocated twice, resulting in undefined behavior in your Rust application.

What to do

If you're using an affected version before 0.4.1, the consequences can range from unstable behavior in your application to complete crashes. It's like a well-intentioned waiter who keeps dropping the same plate of food, leaving diners confused and frustrated. You don’t want your application to be that clumsy! To mitigate this issue, update to the latest version of the crossbeam crate (0.4.1 or later). Thoroughly test your application after upgrading to catch any lingering issues from the previous version. 🚀 You’ve got this! By taking these steps, you’ll ensure your Rust applications are running smoothly and securely! 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.01744 · 77.6th percentile
Published
2019-08-26T17:13Z
EPSS history
Timeline
  • 26 AUG 17:13Z
    An issue was discovered in the crossbeam crate before 0.4.1 for Rust
    cvelistv5