Ubuntu update for linux

Published: 2023-11-21

Risk	High
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2023-31085 CVE-2023-45871
CWE-ID	CWE-369 CWE-119
Exploitation vector	Network
Public exploit	N/A
Vulnerable software	Ubuntu Operating systems & Components / Operating system linux-image-raspi (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-ibm-lts-20.04 (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-xilinx-zynqmp (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-virtual (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-raspi2 (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-oracle-lts-20.04 (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-oem-osp1 (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-oem (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-lowlatency (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-kvm (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-generic-lpae (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-generic (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-bluefield (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-aws-lts-20.04 (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-5.4.0-167-lowlatency (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-5.4.0-167-generic-lpae (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-5.4.0-167-generic (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-5.4.0-1114-aws (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-5.4.0-1113-oracle (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-5.4.0-1103-kvm (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-5.4.0-1098-raspi (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-5.4.0-1075-bluefield (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-5.4.0-1061-ibm (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-5.4.0-1034-xilinx-zynqmp (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-5.4.0-1026-iot (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-lowlatency-hwe-18.04 (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-virtual-hwe-18.04 (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-snapdragon-hwe-18.04 (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-generic-hwe-18.04 (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-raspi-hwe-18.04 (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-ibm (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-aws (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-oracle (Ubuntu package) Operating systems & Components / Operating system package or component
Vendor	Canonical Ltd.

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Division by zero

EUVDB-ID: #VU82660

Risk: Low

CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-31085

CWE-ID: CWE-369 - Divide By Zero

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to a divide by zero error within the drivers/mtd/ubi/cdev.c driver. A local user can perform a denial of service (DoS) attack.

Mitigation

Update the affected package linux to the latest version.

Vulnerable software versions

Ubuntu: 18.04 - 20.04

linux-image-raspi (Ubuntu package): before 5.4.0.1098.128

linux-image-ibm-lts-20.04 (Ubuntu package): before 5.4.0.1061.90

linux-image-xilinx-zynqmp (Ubuntu package): before 5.4.0.1034.34

linux-image-virtual (Ubuntu package): before 5.4.0.167.164

linux-image-raspi2 (Ubuntu package): before 5.4.0.1098.128

linux-image-oracle-lts-20.04 (Ubuntu package): before 5.4.0.1113.106

linux-image-oem-osp1 (Ubuntu package): before 5.4.0.167.164

linux-image-oem (Ubuntu package): before 5.4.0.167.164

linux-image-lowlatency (Ubuntu package): before 5.4.0.167.164

linux-image-kvm (Ubuntu package): before 5.4.0.1103.99

linux-image-generic-lpae (Ubuntu package): before 5.4.0.167.164

linux-image-generic (Ubuntu package): before 5.4.0.167.164

linux-image-bluefield (Ubuntu package): before 5.4.0.1075.70

linux-image-aws-lts-20.04 (Ubuntu package): before 5.4.0.1114.111

linux-image-5.4.0-167-lowlatency (Ubuntu package): before Ubuntu Pro

linux-image-5.4.0-167-generic-lpae (Ubuntu package): before 5.4.0-167.184

linux-image-5.4.0-167-generic (Ubuntu package): before Ubuntu Pro

linux-image-5.4.0-1114-aws (Ubuntu package): before Ubuntu Pro

linux-image-5.4.0-1113-oracle (Ubuntu package): before Ubuntu Pro

linux-image-5.4.0-1103-kvm (Ubuntu package): before 5.4.0-1103.110

linux-image-5.4.0-1098-raspi (Ubuntu package): before Ubuntu Pro

linux-image-5.4.0-1075-bluefield (Ubuntu package): before 5.4.0-1075.81

linux-image-5.4.0-1061-ibm (Ubuntu package): before Ubuntu Pro

linux-image-5.4.0-1034-xilinx-zynqmp (Ubuntu package): before 5.4.0-1034.38

linux-image-5.4.0-1026-iot (Ubuntu package): before 5.4.0-1026.27

linux-image-lowlatency-hwe-18.04 (Ubuntu package): before Ubuntu Pro

linux-image-virtual-hwe-18.04 (Ubuntu package): before Ubuntu Pro

linux-image-snapdragon-hwe-18.04 (Ubuntu package): before Ubuntu Pro

linux-image-generic-hwe-18.04 (Ubuntu package): before Ubuntu Pro

linux-image-raspi-hwe-18.04 (Ubuntu package): before Ubuntu Pro

linux-image-ibm (Ubuntu package): before Ubuntu Pro

linux-image-aws (Ubuntu package): before Ubuntu Pro (Infra-only)

linux-image-oracle (Ubuntu package): before Ubuntu Pro (Infra-only)

CPE2.3

External links

https://ubuntu.com/security/notices/USN-6495-1

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Buffer overflow

EUVDB-ID: #VU83381

Risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2023-45871

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error within the IGB driver in drivers/net/ethernet/intel/igb/igb_main.c when handling frames larger than the MTU. A remote attacker can send specially crafted traffic to the system, trigger memory corruption and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.