QID 198588

Date Published: 2021-12-01

QID 198588: Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-5161-1)

The sctp implementation in the linux kernel did not properly perform size validations on incoming packets in some situations.
The amd cryptographic coprocessor (ccp) driver in the linux kernel did not properly deallocate memory in some error conditions.
The aspeed low pin count (lpc) bus controller implementation in the linux kernel did not properly perform boundary checks in some situations, allowing out-of-bounds write access.

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.

an attacker could possibly use this to expose sensitive information (kernel memory) (cve-2021-3655).
A local attacker could use this to cause a denial of service (memory exhaustion) (cve-2021-3744, cve-2021-3764).
A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code.
In ubuntu, this issue only affected systems running armhf kernels. (
Cve-2021-42252).

  • CVSS V3 rated as High - 7.8 severity.
  • CVSS V2 rated as Medium - 4.6 severity.
    • Solution
    Refer to Ubuntu advisory: USN-5161-1 for affected packages and patching details, or update with your package manager.
    Vendor References

    CVEs related to QID 198588

    CVE-2021-3744 | CVE-2021-3655 | CVE-2021-3764 | CVE-2021-42252 |
    Software Advisories
    Advisory ID Software Component Link
    USN-5161-1 Ubuntu Linux URL Logo ubuntu.com/security/notices/USN-5161-1
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