QID 198567

Date Published: 2021-11-22

QID 198567: Ubuntu Security Notification for Linux kernel (OEM 5.14) Vulnerabilities (USN-5140-1)

The amd cryptographic coprocessor (ccp) driver in the linux kernel did not properly deallocate memory in some error conditions.
An integer overflow could be triggered in the ebpf implementation in the linux kernel when preallocating objects for stack maps.

Note: The preceding description block is extracted directly from the security advisory. Using automation, we have attempted to clean and format it as much as possible without introducing additional issues.

a local attacker could use this to cause a denial of service (memory exhaustion) (cve-2021-3744, cve-2021-3764).
A privileged local attacker could use this to cause a denial of service or possibly execute arbitrary code. (
Cve-2021-41864).

  • CVSS V3 rated as High - 7.8 severity.
  • CVSS V2 rated as Medium - 4.6 severity.
    • Solution
    Refer to Ubuntu advisory: USN-5140-1 for affected packages and patching details, or update with your package manager.
    Vendor References

    CVEs related to QID 198567

    CVE-2021-3764 | CVE-2021-3744 | CVE-2021-41864 |
    Software Advisories
    Advisory ID Software Component Link
    USN-5140-1 Ubuntu Linux URL Logo ubuntu.com/security/notices/USN-5140-1
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