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Home > Linux > Linux kernel updates address 14 vulnerabilities

Linux kernel updates address 14 vulnerabilities

Canonical released a major Linux kernel update to address 14 security vulnerabilities by various researchers.


Erdem Yasar Erdem Yasar
December 4, 2020
3 min read
Linux kernel updates address 14 vulnerabilities

Canonical announced the release of a major Linux kernel update that fixes various vulnerabilities that affect Ubuntu 20.10, Ubuntu 20.04 LTS, and Ubuntu 18.04 LTS systems. The new versions are linux-image 5.8.0-31.33 for Ubuntu 20.10 (64-bit), linux-image 5.4.0-56.62 for Ubuntu 20.04 LTS (64-bit), linux-image 5.4.0-56.62~18.04.1 for Ubuntu 18.04 LTS (64-bit), and linux-image 4.4.0-197.229 for Ubuntu 16.04 LTS (64-bit).

Vulnerabilities

  • CVE-2020-0423: A race condition existed in the binder IPC implementation, leading to a use-after-free vulnerability, allowing a local attacker to cause a denial of service or possibly execute arbitrary code.
  • CVE-2020-10135: Legacy pairing and secure-connections pairing authentication in the Bluetooth protocol could allow an unauthenticated user to complete authentication without pairing credentials.
  • CVE-2020-14351: A race condition existed in the perf subsystem, leading to a use-after-free vulnerability, allowing an attacker with access to the perf subsystem to use this to cause a denial of service or possibly execute arbitrary code.
  • CVE-2020-14390: The frame buffer implementation did not properly handle some edge cases in software scrollback allowing a local attacker to cause a denial of service or possibly execute arbitrary code.
  • CVE-2020-25211: Netfilter connection tracker for netlink did not properly perform bounds checking in some situations allowing a local attacker to cause a denial of service.
  • CVE-2020-25284: Rados block device (rbd) driver did not properly perform privilege checks for access to rbd devices in some situations allowing a local attacker to cause a denial of service or possibly execute arbitrary code.
  • CVE-2020-25643: HDLC PPP implementation did not properly validate input in some situations allowing a local attacker to cause a denial of service or possibly execute arbitrary code.
  • CVE-2020-25645: GENEVE tunnel implementation when combined with IPSec did not properly select IP routes in some situations allowing an attacker to expose sensitive information.
  • CVE-2020-25705: ICMP global rate limiter could be used to assist in scanning open UDP ports allowing a remote attacker to facilitate attacks on UDP based services that depend on source port randomization.
  • CVE-2020-28915: Framebuffer implementation did not properly perform range checks in certain situations allowing a local attacker to expose sensitive information.
  • CVE-2020-4788: Power 9 processors could be coerced to expose information from the L1 cache in certain situations allowing a local attacker to expose sensitive information.

See more Linux News


Tags: Linux KernelUbuntu
Erdem Yasar

Erdem Yasar

Erdem Yasar is a news editor at Cloud7 News. Erdem started his career by writing video game reviews in 2007 for PC World magazine while he was studying computer engineering. In the following years, he focused on software development with various programming languages. After his graduation, he continued to work as an editor for several major tech-related websites and magazines. During the 2010s, Erdem Yasar shifted his focus to cloud computing, hosting, and data centers as they were becoming more popular topics in the tech industry. Erdem Yasar also worked with various industry-leading tech companies as a content creator by writing blog posts and other articles. Prior to his role at Cloud7 News, Erdem was the managing editor of T3 Magazine.

Comments 1

  1. Angry User says:
    2 years ago

    I still need to patch my i915 driver module to fix the threads for the MEDIA_VFE_STATE on my Intel 4th generation HD Graphics, they should fix it.

    Reply

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