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Ubuntu 18.04 LTS / 20.04 LTS : Linux kernel vulnerabilities (USN-5415-1)

high Nessus Plugin ID 161063

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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-5415-1 advisory.

 - A vulnerability was found in Linux kernel, where a use-after-frees in nouveau's postclose() handler could happen if removing device (that is not common to remove video card physically without power-off, but same happens if unbind the driver). (CVE-2020-27820)

 - LFENCE/JMP (mitigation V2-2) may not sufficiently mitigate CVE-2017-5715 on some AMD CPUs.
 (CVE-2021-26401)

 - A flaw was found in the Linux kernel in net/netfilter/nf_tables_core.c:nft_do_chain, which can cause a use-after-free. This issue needs to handle 'return' with proper preconditions, as it can lead to a kernel information leak problem caused by a local, unprivileged attacker. (CVE-2022-1016)

 - In mmc_blk_read_single of block.c, there is a possible way to read kernel heap memory due to uninitialized data. This could lead to local information disclosure if reading from an SD card that triggers errors, with no additional execution privileges needed. User interaction is not needed for exploitation.Product:
 AndroidVersions: Android kernelAndroid ID: A-216481035References: Upstream kernel (CVE-2022-20008)

 - An issue was discovered in drivers/usb/gadget/composite.c in the Linux kernel before 5.16.10. The USB Gadget subsystem lacks certain validation of interface OS descriptor requests (ones with a large array index and ones associated with NULL function pointer retrieval). Memory corruption might occur.
 (CVE-2022-25258)

 - An issue was discovered in drivers/usb/gadget/function/rndis.c in the Linux kernel before 5.16.10. The RNDIS USB gadget lacks validation of the size of the RNDIS_MSG_SET command. Attackers can obtain sensitive information from kernel memory. (CVE-2022-25375)

 - st21nfca_connectivity_event_received in drivers/nfc/st21nfca/se.c in the Linux kernel through 5.16.12 has EVT_TRANSACTION buffer overflows because of untrusted length parameters. (CVE-2022-26490)

 - In drivers/usb/gadget/udc/udc-xilinx.c in the Linux kernel before 5.16.12, the endpoint index is not validated and might be manipulated by the host for out-of-array access. (CVE-2022-27223)

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-5415-1

Plugin Details

Severity: High

ID: 161063

File Name: ubuntu_USN-5415-1.nasl

Version: 1.6

Type: local

Agent: unix

Published: 5/12/2022

Updated: 1/9/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.1

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

CVSS Score Source: CVE-2022-27223

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.9

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

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

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-110-generic, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-1060-raspi, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-1071-oracle, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-1073-aws, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-1078-azure-fde, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-1021-ibm, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-1078-azure, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-110-lowlatency, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-110-generic-lpae, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-1040-gkeop, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-1063-kvm, cpe:/o:canonical:ubuntu_linux:20.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-1073-gcp

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 5/12/2022

Vulnerability Publication Date: 11/3/2021

Reference Information

CVE: CVE-2020-27820, CVE-2021-26401, CVE-2022-1016, CVE-2022-20008, CVE-2022-25258, CVE-2022-25375, CVE-2022-26490, CVE-2022-27223

USN: 5415-1