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Ubuntu 18.04 LTS / 20.04 LTS : Linux kernel vulnerabilities (USN-5791-1)

high Nessus Plugin ID 169689

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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-5791-1 advisory.

 - In binder_inc_ref_for_node of binder.c, there is a possible way to corrupt memory due to a use after free.
 This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID:
 A-239630375References: Upstream kernel (CVE-2022-20421)

 - An issue was found in the Linux kernel in nf_conntrack_irc where the message handling can be confused and incorrectly matches the message. A firewall may be able to be bypassed when users are using unencrypted IRC with nf_conntrack_irc configured. (CVE-2022-2663)

 - Found Linux Kernel flaw in the i740 driver. The Userspace program could pass any values to the driver through ioctl() interface. The driver doesn't check the value of 'pixclock', so it may cause a divide by zero error. (CVE-2022-3061)

 - A race condition flaw was found in the Linux kernel sound subsystem due to improper locking. It could lead to a NULL pointer dereference while handling the SNDCTL_DSP_SYNC ioctl. A privileged local user (root or member of the audio group) could use this flaw to crash the system, resulting in a denial of service condition (CVE-2022-3303)

 - A flaw was found in the Linux kernel's networking code. A use-after-free was found in the way the sch_sfb enqueue function used the socket buffer (SKB) cb field after the same SKB had been enqueued (and freed) into a child qdisc. This flaw allows a local, unprivileged user to crash the system, causing a denial of service. (CVE-2022-3586)

 - A vulnerability, which was classified as problematic, has been found in Linux Kernel. This issue affects the function nilfs_attach_log_writer of the file fs/nilfs2/segment.c of the component BPF. The manipulation leads to memory leak. The attack may be initiated remotely. It is recommended to apply a patch to fix this issue. The identifier VDB-211961 was assigned to this vulnerability. (CVE-2022-3646)

 - An issue was discovered in the Linux kernel before 5.19. In pxa3xx_gcu_write in drivers/video/fbdev/pxa3xx-gcu.c, the count parameter has a type conflict of size_t versus int, causing an integer overflow and bypassing the size check. After that, because it is used as the third argument to copy_from_user(), a heap overflow may occur. NOTE: the original discoverer disputes that the overflow can actually happen. (CVE-2022-39842)

 - An issue was discovered in the Linux kernel through 5.19.8. drivers/firmware/efi/capsule-loader.c has a race condition with a resultant use-after-free. (CVE-2022-40307)

 - A use-after-free flaw was found in Linux kernel before 5.19.2. This issue occurs in cmd_hdl_filter in drivers/staging/rtl8712/rtl8712_cmd.c, allowing an attacker to launch a local denial of service attack and gain escalation of privileges. (CVE-2022-4095)

 - drivers/usb/mon/mon_bin.c in usbmon in the Linux kernel before 5.19.15 and 6.x before 6.0.1 allows a user- space client to corrupt the monitor's internal memory. (CVE-2022-43750)

 - An issue was discovered in include/asm-generic/tlb.h in the Linux kernel before 5.19. Because of a race condition (unmap_mapping_range versus munmap), a device driver can free a page while it still has stale TLB entries. This only occurs in situations with VM_PFNMAP VMAs. (CVE-2022-39188)

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-5791-1

Plugin Details

Severity: High

ID: 169689

File Name: ubuntu_USN-5791-1.nasl

Version: 1.4

Type: local

Agent: unix

Published: 1/7/2023

Updated: 1/9/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5.3

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

CVSS Score Source: CVE-2022-4095

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7

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:P/RL:O/RC:C

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-5.4.0-1041-ibm, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-1061-gkeop, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-1078-raspi, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-1083-kvm, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-1091-gke, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-1091-oracle, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-1093-aws, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-1097-gcp, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-136-generic, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-136-generic-lpae, p-cpe:/a:canonical:ubuntu_linux:linux-image-5.4.0-136-lowlatency

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 1/6/2023

Vulnerability Publication Date: 9/1/2022

Reference Information

CVE: CVE-2022-20421, CVE-2022-2663, CVE-2022-3061, CVE-2022-3303, CVE-2022-3586, CVE-2022-3646, CVE-2022-39188, CVE-2022-39842, CVE-2022-40307, CVE-2022-4095, CVE-2022-43750

USN: 5791-1