CVE-2021-30455

An issue was discovered in the id-map crate through 2021-02-26 for Rust

published April 7, 2021

CVSS
โ€”
EPSS
1%
Percentile
65.4
In the wild
Unconfirmed
What it is

โš ๏ธ A double free is sneaking around in the id-map crate! This vulnerability can lead to a memory mishap during a panic in .clone โ€” and we all know how exciting that can get! ๐Ÿ˜… Think of it like a busy kitchen where a chef mistakenly discards the same ingredient twice while trying to make a dish. Instead of cooking it properly, they end up creating a chaotic mess that could spoil the meal altogether. If left unattended, this double free can cause your application to behave unexpectedly or even crash, leading to a frustrating user experience. While not currently exploited, the potential for instability in critical applications is absolutely something to keep an eye on!

Put simply

Think of it like a busy kitchen where a chef mistakenly discards the same ingredient twice while trying to make a dish. Instead of cooking it properly, they end up creating a chaotic mess that could spoil the meal altogether. This vulnerability arises in the id-map crate where a double free can occur in the IdMap::clone_from method if a panic happens during the .clone process, potentially leading to undefined behavior.

What to do

If left unattended, this double free can cause your application to behave unexpectedly or even crash, leading to a frustrating user experience. While not currently exploited, the potential for instability in critical applications is absolutely something to keep an eye on! To mitigate this issue, update the id-map crate to the latest version if an update is available. It's also wise to audit your dependencies to ensure you're not using a vulnerable version. Keep your Rust environment updated to minimize such risks. ๐Ÿ›ก๏ธ You've got this! Stay proactive and keep your code clean and safe. ๐Ÿš€

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.01100 ยท 65.4th percentile
Published
2021-04-07T21:20Z
EPSS history
Timeline
  • 07 APR 21:20Z
    An issue was discovered in the id-map crate through 2021-02-26 for Rust
    cvelistv5