CVE-2021-3764
Last modified
CVE-2021-3764 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. A memory leak flaw was found in the Linux kernel's ccp_run_aes_gcm_cmd() function that allows an attacker to cause a denial of service. The vulnerability is similar to the older CVE-2019-18808. EPSS estimates a 0.26% chance of exploitation in the next 30 days.
Description
A memory leak flaw was found in the Linux kernel's ccp_run_aes_gcm_cmd() function that allows an attacker to cause a denial of service. The vulnerability is similar to the older CVE-2019-18808. The highest threat from this vulnerability is to system availability.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | <= 5.14.20 |
| Linux | Linux Kernel | 5.15 |
References
- https://access.redhat.com/security/cve/CVE-2021-3764Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1997467Issue Tracking, Third Party Advisory
- https://github.com/torvalds/linux/commit/505d9dcb0f7ddf9d075e729523a33d38642ae680Patch, Third Party Advisory
- https://security-tracker.debian.org/tracker/CVE-2021-3764Third Party Advisory
- https://access.redhat.com/security/cve/CVE-2021-3764Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1997467Issue Tracking, Third Party Advisory
- https://github.com/torvalds/linux/commit/505d9dcb0f7ddf9d075e729523a33d38642ae680Patch, Third Party Advisory
- https://security-tracker.debian.org/tracker/CVE-2021-3764Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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