CVE-2021-29931 — Arenavec
HIGHCVE-2021-29931 is a high-severity (CVSS 7.5) CWE-415 vulnerability in arenavec_project arenavec. No vendor fix is recorded yet; mitigation options are listed below.
An issue was discovered in the arenavec crate through 2021-01-12 for Rust. A double drop can sometimes occur upon a panic in T::drop().
EPSS Exploitation Probability
Probability of exploitation in the next 30 days, from FIRST.org EPSS.
How urgent is this, really
CVE-2021-29931 by exploitation likelihood (EPSS) against impact (CVSS). Outside the shaded patch-first corner.
Where this sits among everything scored
Of 385,987 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Counts from FIRST.org, log-scaled.
Description
An issue was discovered in the arenavec crate through 2021-01-12 for Rust. A double drop can sometimes occur upon a panic in T::drop().
Affected Products
arenavecarenavec_projectDetection & mitigation playbook
Vendor / applianceDetect
Inventory every arenavec_project arenavec deployment and check each version against the affected-products list above.
Remediation status
No patch has shipped for CVE-2021-29931 yet — track the arenavec_project arenavec advisory for a fixed release and apply the workarounds below in the meantime.
Mitigate without a patch
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands. Alongside that, restrict the management interface to trusted networks and apply the vendor's recommended configuration mitigations.
Frequently Asked Questions
Is CVE-2021-29931 being exploited in your environment?
Detect and block the exploit chain at execution, on systems you cannot patch yet.