USN-6609-3: Linux kernel (Oracle) vulnerabilities
Lin Ma discovered that the netfilter subsystem in the Linux kernel did not properly validate network family support while creating a new netfilter table. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. (CVE-2023-6040) It was discovered that the CIFS network file system implementation in the Linux kernel did not properly validate the server frame size in certain situation, leading to an out-of-bounds read vulnerability. An attacker could use this to construct a malicious CIFS image that, when operated on, could cause a denial of service (system crash) or possibly expose sensitive information. (CVE-2023-6606) Xingyuan Mo discovered that the netfilter subsystem in the Linux kernel did not properly handle inactive elements in its PIPAPO data structure, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-6817) Budimir Markovic, Lucas De Marchi, and Pengfei Xu discovered that the perf subsystem in the Linux kernel did not properly validate all event sizes when attaching new events, leading to an out-of-bounds write vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-6931) It was discovered that the IGMP protocol implementation in the Linux kernel contained a race condition, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2023-6932) Kevin Rich discovered that the netfilter subsystem in the Linux kernel did not properly check deactivated elements in certain situations, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2024-0193)
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
ubuntu/linux-image-5.15.0-1050-oracleto a version that resolves this vulnerability.Fixed in 5.15.0-1050.56 - Upgrade
Upgrade
ubuntu/linux-image-oracleto a version that resolves this vulnerability.Fixed in 5.15.0.1050.45 - Upgrade
Upgrade
ubuntu/linux-image-oracle-lts-22.04to a version that resolves this vulnerability.Fixed in 5.15.0.1050.45 - Upgrade
Upgrade
ubuntu/linux-image-5.15.0-1050-oracleto a version that resolves this vulnerability.Fixed in 5.15.0-1050.56~20.04.1 - Upgrade
Upgrade
ubuntu/linux-image-oracleto a version that resolves this vulnerability.Fixed in 5.15.0.1050.56~20.04.1
Event History
Child vulnerabilities
Contains the following vulnerabilities.
Frequently Asked Questions
What is the severity of USN-6609-3?
USN-6609-3 is classified as a high severity vulnerability due to its potential for denial of service and arbitrary code execution.
How do I fix USN-6609-3?
To fix USN-6609-3, upgrade your kernel to version 5.15.0-1050.56 or later if you are using Ubuntu 22.04 or version 5.15.0-1050.56~20.04.1 for Ubuntu 20.04.
Who is affected by USN-6609-3?
USN-6609-3 affects Ubuntu versions 20.04 and 22.04 that use specific Linux kernel packages listed in the advisory.
What can an attacker do with USN-6609-3?
Exploiting USN-6609-3 may allow a local attacker to cause a denial of service or potentially execute arbitrary code.
Is there a workaround for USN-6609-3?
There is no official workaround for USN-6609-3; the recommended action is to update the kernel package.