USN-6726-3: Linux kernel (Xilinx ZynqMP) vulnerabilities
First published: Wed Apr 17 2024(Updated: )
Pratyush Yadav discovered that the Xen network backend implementation in the Linux kernel did not properly handle zero length data request, leading to a null pointer dereference vulnerability. An attacker in a guest VM could possibly use this to cause a denial of service (host domain crash). (CVE-2023-46838) It was discovered that the IPv6 implementation of the Linux kernel did not properly manage route cache memory usage. A remote attacker could use this to cause a denial of service (memory exhaustion). (CVE-2023-52340) It was discovered that the device mapper driver in the Linux kernel did not properly validate target size during certain memory allocations. A local attacker could use this to cause a denial of service (system crash). (CVE-2023-52429, CVE-2024-23851) Dan Carpenter discovered that the netfilter subsystem in the Linux kernel did not store data in properly sized memory locations. A local user could use this to cause a denial of service (system crash). (CVE-2024-0607) Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems:
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Xilinx Linux kernel (ZynqMP) |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
- https://ubuntu.com/security/CVE-2024-26633
- https://ubuntu.com/security/CVE-2024-26597
- https://ubuntu.com/security/CVE-2024-23851
- https://ubuntu.com/security/CVE-2024-0607
- https://ubuntu.com/security/CVE-2023-52612
- https://ubuntu.com/security/CVE-2023-52609
- https://ubuntu.com/security/CVE-2023-52470
- https://ubuntu.com/security/CVE-2023-52469
- https://ubuntu.com/security/CVE-2023-52464
- https://ubuntu.com/security/CVE-2023-52457
- https://ubuntu.com/security/notices/USN-6726-3 (Advisory)
Child vulnerabilities
(Contains the following vulnerabilities)
Frequently Asked Questions
What is the severity of USN-6726-3?
The severity of USN-6726-3 is considered critical due to the potential for denial of service.
How do I fix USN-6726-3?
To fix USN-6726-3, update to the recommended kernel versions 5.4.0-1041.45 or 5.4.0.1041.41 on Ubuntu 20.04.
What impact does USN-6726-3 have on systems?
USN-6726-3 can lead to a null pointer dereference vulnerability, allowing an attacker in a guest VM to cause a denial of service.
Which versions of Ubuntu are affected by USN-6726-3?
Ubuntu 20.04 is the affected version for the vulnerability identified in USN-6726-3.
Is there any additional mitigation for USN-6726-3?
No additional mitigation is specified for USN-6726-3 other than applying the kernel updates.
- agent/last-modified-date
- agent/weakness
- agent/severity
- agent/title
- agent/description
- agent/first-publish-date
- agent/type
- agent/trending
- agent/source
- collector/usn
- source/Ubuntu
- agent/references
- agent/event
- agent/softwarecombine
- agent/tags
- agent/guess-ai
- agent/software-canonical-lookup
- vendor/xilinx
- canonical/xilinx linux kernel (zynqmp)