CVE-2021-30455 — ID-MAP
CRITICALCVE-2021-30455 is a critical-severity (CVSS 9.8) CWE-415 vulnerability in id-map_project id-map. Versions up to 2021-02-26 are affected; the records list no fixed version yet, so check the vendor advisory below.
An issue was discovered in the id-map crate through 2021-02-26 for Rust. A double free can occur in IdMap::clone_from upon a .clone panic.
EPSS Exploitation Probability
Probability of exploitation in the next 30 days, from FIRST.org EPSS.
How urgent is this, really
Where this sits among everything scored
Description
An issue was discovered in the id-map crate through 2021-02-26 for Rust. A double free can occur in IdMap::clone_from upon a .clone panic.
Affected Products
id-mapid-map_projectDetection & mitigation playbook
Vendor / applianceDetect
Inventory every id-map_project id-map deployment and check each version against the affected-products list above.
Remediation status
The records we use list no fixed version for CVE-2021-30455 (versions up to 2021-02-26 are affected). Check the id-map_project id-map advisory for a patched release, and apply the workarounds below until you can upgrade.
Mitigate without a patch
Constrain what reaches the vulnerable code: limit the size and shape of untrusted input, isolate the affected component in a sandboxed or least-privileged process, and enable the platform's memory-safety mitigations (ASLR, stack protector, hardened allocator) so an out-of-bounds access is more likely to fail closed than to be exploitable. Alongside that, restrict the management interface to trusted networks and apply the vendor's recommended configuration mitigations.
Frequently Asked Questions
Is CVE-2021-30455 being exploited in your environment?
Detect and block the exploit chain at execution, on systems you cannot patch yet.