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Ubuntu 18.04 LTS / 20.04 LTS : Linux kernel vulnerabilities (USN-6648-1)

high Nessus Plugin ID 190874

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Synopsis

The remote Ubuntu host is missing one or more security updates.

Description

The remote Ubuntu 18.04 LTS / 20.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6648-1 advisory.

 - An issue was discovered in the Linux kernel before 6.6.8. atalk_ioctl in net/appletalk/ddp.c has a use- after-free because of an atalk_recvmsg race condition. (CVE-2023-51781)

 - A Null pointer dereference problem was found in ida_free in lib/idr.c in the Linux Kernel. This issue may allow an attacker using this library to cause a denial of service problem due to a missing check at a function return. (CVE-2023-6915)

 - An out-of-bounds memory read flaw was found in receive_encrypted_standard in fs/smb/client/smb2ops.c in the SMB Client sub-component in the Linux Kernel. This issue occurs due to integer underflow on the memcpy length, leading to a denial of service. (CVE-2024-0565)

 - An out-of-bounds memory write flaw was found in the Linux kernel's Transport Layer Security functionality in how a user calls a function splice with a ktls socket as the destination. This flaw allows a local user to crash or potentially escalate their privileges on the system. (CVE-2024-0646)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the affected kernel package.

See Also

https://ubuntu.com/security/notices/USN-6648-1

Plugin Details

Severity: High

ID: 190874

File Name: ubuntu_USN-6648-1.nasl

Version: 1.1

Type: local

Agent: unix

Published: 2/22/2024

Updated: 2/22/2024

Supported Sensors: Agentless Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.4

CVSS v2

Risk Factor: High

Base Score: 7.7

Temporal Score: 5.7

Vector: CVSS2#AV:A/AC:L/Au:S/C:C/I:C/A:C

CVSS Score Source: CVE-2024-0565

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS Score Source: CVE-2024-0646

Vulnerability Information

CPE: cpe:/o:canonical:ubuntu_linux:18.04:-:lts, cpe:/o:canonical:ubuntu_linux:20.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-1031-iot, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-1038-xilinx-zynqmp, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-1066-ibm, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-1079-bluefield, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-1086-gkeop, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-1103-raspi, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-1107-kvm, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-1118-oracle, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-1119-aws, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-1123-gcp, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-172-generic, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-172-generic-lpae, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-172-lowlatency

Required KB Items: Host/cpu, Host/Ubuntu, Host/Ubuntu/release, Host/Debian/dpkg-l

Exploit Ease: No known exploits are available

Patch Publication Date: 2/22/2024

Vulnerability Publication Date: 1/11/2024

Reference Information

CVE: CVE-2023-51781, CVE-2023-6915, CVE-2024-0565, CVE-2024-0646

USN: 6648-1