CVE-2021-39228 is a critical memory safety vulnerability affecting Tremor event processing systems between versions 0.7.2 and 0.11.6. It arises from improper memory handling when using 'patch' or 'merge' on 'state' and reassigning the result, leading to use-after-free conditions. With a CVSS score of 9.8 (Critical), this vulnerability is remotely exploitable with low attack complexity, potentially allowing for full compromise of confidentiality, integrity, and availability. While no public exploits or active exploitation have been observed, and community discussion is minimal, the high severity warrants immediate patching to version 0.11.6 or implementing the recommended workaround.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 0.7.2, < 0.11.6CPE matchmatch criteria | cpe:2.3:a:linuxfoundation:tremor:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
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The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.