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USN-6648-1 Not scored

linux, linux-aws, linux-aws-5.4, linux-bluefield, linux-gcp, linux-gcp-5.4, linux-gkeop, linux-hwe-5.4, linux-ibm, linux-ibm-5.4, linux-iot, linux-kvm, linux-oracle, linux-oracle-5.4, linux-raspi, linux-raspi-5.4, linux-xilinx-zynqmp vulnerabilities

It was discovered that a race condition existed in the AppleTalk networking subsystem of the Linux kernel, 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-2023-51781) Zhenghan Wang discovered that the generic ID allocator implementation in the Linux kernel did not properly check for null bitmap when releasing IDs. A local attacker could use this to cause a denial of service (system crash). (CVE-2023-6915) Robert Morris discovered that the CIFS network file system implementation in the Linux kernel did not properly validate certain server commands fields, leading to an out-of-bounds read vulnerability. An attacker could use this to cause a denial of service (system crash) or possibly expose sensitive information. (CVE-2024-0565) Jann Horn discovered that the TLS subsystem in the Linux kernel did not properly handle spliced messages, 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-2024-0646)

Exploit probability Not scored
Published February 22, 2024
Required by Not available
Last source change June 3, 2026

02 / AFFECTED SOFTWARE

Affected packages

Ubuntu:20.04:LTS linux

92 explicit affected versions

Ubuntu:20.04:LTS linux-aws

84 explicit affected versions

Ubuntu:20.04:LTS linux-bluefield

43 explicit affected versions

Ubuntu:20.04:LTS linux-gcp

84 explicit affected versions

Ubuntu:20.04:LTS linux-gkeop

61 explicit affected versions

Ubuntu:20.04:LTS linux-ibm

49 explicit affected versions

Ubuntu:20.04:LTS linux-iot

22 explicit affected versions

Ubuntu:20.04:LTS linux-kvm

79 explicit affected versions

Ubuntu:20.04:LTS linux-oracle

83 explicit affected versions

Ubuntu:20.04:LTS linux-raspi

72 explicit affected versions

Ubuntu:20.04:LTS linux-xilinx-zynqmp

18 explicit affected versions

Ubuntu:Pro:18.04:LTS linux-aws-5.4

71 explicit affected versions

Ubuntu:Pro:18.04:LTS linux-gcp-5.4

73 explicit affected versions

Ubuntu:Pro:18.04:LTS linux-hwe-5.4

81 explicit affected versions

Ubuntu:Pro:18.04:LTS linux-ibm-5.4

42 explicit affected versions

Ubuntu:Pro:18.04:LTS linux-oracle-5.4

72 explicit affected versions

Ubuntu:Pro:18.04:LTS linux-raspi-5.4

68 explicit affected versions

03 / CONNECTIONS

Connected vulnerabilities

04 / EVIDENCE

Source records

Open Source Vulnerabilities USN-6648-1

It was discovered that a race condition existed in the AppleTalk networking subsystem of the Linux kernel, 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-2023-51781) Zhenghan Wang discovered that the generic ID allocator implementation in the Linux kernel did not properly check for null bitmap when releasing IDs. A local attacker could use this to cause a denial of service (system crash). (CVE-2023-6915) Robert Morris discovered that the CIFS network file system implementation in the Linux kernel did not properly validate certain server commands fields, leading to an out-of-bounds read vulnerability. An attacker could use this to cause a denial of service (system crash) or possibly expose sensitive information. (CVE-2024-0565) Jann Horn discovered that the TLS subsystem in the Linux kernel did not properly handle spliced messages, 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-2024-0646)

View original source

05 / REFERENCES

Further evidence