Ubuntu update for linux

1) Unchecked Return Value

EUVDB-ID: #VU71539

Risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-3108

CWE-ID: CWE-252 - Unchecked Return Value

Exploit availability: No

Description

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

The vulnerability exists due to unchecked return value within the kfd_parse_subtype_iolink() function in drivers/gpu/drm/amd/amdkfd/kfd_crat.c. A local user can crash the kernel.

Mitigation

Update the affected package linux to the latest version.

Vulnerable software versions

Ubuntu: 18.04 - 20.04

linux-image-gke-5.4 (Ubuntu package): before 5.4.0.1097.102

linux-image-kvm (Ubuntu package): before 5.4.0.1089.83

linux-image-gke (Ubuntu package): before 5.4.0.1097.102

linux-image-raspi (Ubuntu package): before 5.4.0.1083.113

linux-image-generic (Ubuntu package): before 5.4.0.147.145

linux-image-oracle-lts-20.04 (Ubuntu package): before 5.4.0.1099.92

linux-image-5.4.0-1067-gkeop (Ubuntu package): before 5.4.0-1067.71

linux-image-gcp-lts-20.04 (Ubuntu package): before 5.4.0.1103.105

linux-image-generic-lpae (Ubuntu package): before 5.4.0.147.145

linux-image-raspi2 (Ubuntu package): before 5.4.0.1083.113

linux-image-5.4.0-1089-kvm (Ubuntu package): before 5.4.0-1089.95

linux-image-aws-lts-20.04 (Ubuntu package): before 5.4.0.1100.97

linux-image-ibm-lts-20.04 (Ubuntu package): before 5.4.0.1047.73

linux-image-gkeop-5.4 (Ubuntu package): before 5.4.0.1067.65

linux-image-azure-lts-20.04 (Ubuntu package): before 5.4.0.1106.99

linux-image-lowlatency (Ubuntu package): before 5.4.0.147.145

linux-image-oem-osp1 (Ubuntu package): before 5.4.0.147.164~18.04.118

linux-image-ibm (Ubuntu package): before 5.4.0.1047.73

linux-image-5.4.0-1097-gke (Ubuntu package): before 5.4.0-1097.104

linux-image-oem (Ubuntu package): before 5.4.0.147.164~18.04.118

linux-image-virtual (Ubuntu package): before 5.4.0.147.145

linux-image-gkeop (Ubuntu package): before 5.4.0.1067.65

linux-image-virtual-hwe-18.04 (Ubuntu package): before 5.4.0.147.164~18.04.118

linux-image-snapdragon-hwe-18.04 (Ubuntu package): before 5.4.0.147.164~18.04.118

linux-image-lowlatency-hwe-18.04 (Ubuntu package): before 5.4.0.147.164~18.04.118

linux-image-generic-lpae-hwe-18.04 (Ubuntu package): before 5.4.0.147.164~18.04.118

linux-image-generic-hwe-18.04 (Ubuntu package): before 5.4.0.147.164~18.04.118

linux-image-5.4.0-147-lowlatency (Ubuntu package): before 5.4.0-147.164~18.04.1

linux-image-5.4.0-147-generic-lpae (Ubuntu package): before 5.4.0-147.164~18.04.1

linux-image-5.4.0-147-generic (Ubuntu package): before 5.4.0-147.164~18.04.1

linux-image-raspi-hwe-18.04 (Ubuntu package): before 5.4.0.1083.80

linux-image-oracle (Ubuntu package): before 5.4.0.1099.108~18.04.71

linux-image-gcp (Ubuntu package): before 5.4.0.1103.79

linux-image-azure (Ubuntu package): before 5.4.0.1106.79

linux-image-aws (Ubuntu package): before 5.4.0.1100.78

linux-image-5.4.0-1106-azure (Ubuntu package): before 5.4.0-1106.112~18.04.1

linux-image-5.4.0-1103-gcp (Ubuntu package): before 5.4.0-1103.112~18.04.1

linux-image-5.4.0-1100-aws (Ubuntu package): before 5.4.0-1100.108~18.04.1

linux-image-5.4.0-1099-oracle (Ubuntu package): before 5.4.0-1099.108~18.04.1

linux-image-5.4.0-1083-raspi (Ubuntu package): before 5.4.0-1083.94~18.04.1

linux-image-5.4.0-1047-ibm (Ubuntu package): before 5.4.0-1047.52~18.04.1

CPE2.3

• cpe:2.3:o:canonical:ubuntu:20.04:*:*:*:*:*:*:
• cpe:2.3:o:canonical:ubuntu:18.04:*:*:*:*:*:*:

External links

http://ubuntu.com/security/notices/USN-6027-1

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) Resource management error

EUVDB-ID: #VU70465

Risk: Low

CVSSv3.1: 4 [CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-3903

CWE-ID: CWE-399 - Resource Management Errors

Exploit availability: No

Description

The vulnerability allows an attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to an incorrect read request flaw in the Infrared Transceiver USB driver in Linux kernel. An attacker with physical access to the system can starve system resources and 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-gke-5.4 (Ubuntu package): before 5.4.0.1097.102

linux-image-kvm (Ubuntu package): before 5.4.0.1089.83

linux-image-gke (Ubuntu package): before 5.4.0.1097.102

linux-image-raspi (Ubuntu package): before 5.4.0.1083.113

linux-image-generic (Ubuntu package): before 5.4.0.147.145

linux-image-oracle-lts-20.04 (Ubuntu package): before 5.4.0.1099.92

linux-image-5.4.0-1067-gkeop (Ubuntu package): before 5.4.0-1067.71

linux-image-gcp-lts-20.04 (Ubuntu package): before 5.4.0.1103.105

linux-image-generic-lpae (Ubuntu package): before 5.4.0.147.145

linux-image-raspi2 (Ubuntu package): before 5.4.0.1083.113

linux-image-5.4.0-1089-kvm (Ubuntu package): before 5.4.0-1089.95

linux-image-aws-lts-20.04 (Ubuntu package): before 5.4.0.1100.97

linux-image-ibm-lts-20.04 (Ubuntu package): before 5.4.0.1047.73

linux-image-gkeop-5.4 (Ubuntu package): before 5.4.0.1067.65

linux-image-azure-lts-20.04 (Ubuntu package): before 5.4.0.1106.99

linux-image-lowlatency (Ubuntu package): before 5.4.0.147.145

linux-image-oem-osp1 (Ubuntu package): before 5.4.0.147.164~18.04.118

linux-image-ibm (Ubuntu package): before 5.4.0.1047.73

linux-image-5.4.0-1097-gke (Ubuntu package): before 5.4.0-1097.104

linux-image-oem (Ubuntu package): before 5.4.0.147.164~18.04.118

linux-image-virtual (Ubuntu package): before 5.4.0.147.145

linux-image-gkeop (Ubuntu package): before 5.4.0.1067.65

linux-image-virtual-hwe-18.04 (Ubuntu package): before 5.4.0.147.164~18.04.118

linux-image-snapdragon-hwe-18.04 (Ubuntu package): before 5.4.0.147.164~18.04.118

linux-image-lowlatency-hwe-18.04 (Ubuntu package): before 5.4.0.147.164~18.04.118

linux-image-generic-lpae-hwe-18.04 (Ubuntu package): before 5.4.0.147.164~18.04.118

linux-image-generic-hwe-18.04 (Ubuntu package): before 5.4.0.147.164~18.04.118

linux-image-5.4.0-147-lowlatency (Ubuntu package): before 5.4.0-147.164~18.04.1

linux-image-5.4.0-147-generic-lpae (Ubuntu package): before 5.4.0-147.164~18.04.1

linux-image-5.4.0-147-generic (Ubuntu package): before 5.4.0-147.164~18.04.1

linux-image-raspi-hwe-18.04 (Ubuntu package): before 5.4.0.1083.80

linux-image-oracle (Ubuntu package): before 5.4.0.1099.108~18.04.71

linux-image-gcp (Ubuntu package): before 5.4.0.1103.79

linux-image-azure (Ubuntu package): before 5.4.0.1106.79

linux-image-aws (Ubuntu package): before 5.4.0.1100.78

linux-image-5.4.0-1106-azure (Ubuntu package): before 5.4.0-1106.112~18.04.1

linux-image-5.4.0-1103-gcp (Ubuntu package): before 5.4.0-1103.112~18.04.1

linux-image-5.4.0-1100-aws (Ubuntu package): before 5.4.0-1100.108~18.04.1

linux-image-5.4.0-1099-oracle (Ubuntu package): before 5.4.0-1099.108~18.04.1

linux-image-5.4.0-1083-raspi (Ubuntu package): before 5.4.0-1083.94~18.04.1

linux-image-5.4.0-1047-ibm (Ubuntu package): before 5.4.0-1047.52~18.04.1

CPE2.3

• cpe:2.3:o:canonical:ubuntu:20.04:*:*:*:*:*:*:
• cpe:2.3:o:canonical:ubuntu:18.04:*:*:*:*:*:*:

External links

http://ubuntu.com/security/notices/USN-6027-1

Q & A

Can this vulnerability be exploited remotely?

No. The attacker should have physical access to the system in order to successfully exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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

3) NULL pointer dereference

EUVDB-ID: #VU70486

Risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-4129

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

Description

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

The vulnerability exists due to a NULL pointer dereference error in the Linux kernel's Layer 2 Tunneling Protocol (L2TP). A missing lock when clearing sk_user_data can lead to a race condition and NULL pointer dereference. A local user could use this flaw to potentially crash the system causing a denial of service.

Mitigation

Update the affected package linux to the latest version.

Vulnerable software versions

Ubuntu: 18.04 - 20.04

linux-image-gke-5.4 (Ubuntu package): before 5.4.0.1097.102

linux-image-kvm (Ubuntu package): before 5.4.0.1089.83

linux-image-gke (Ubuntu package): before 5.4.0.1097.102

linux-image-raspi (Ubuntu package): before 5.4.0.1083.113

linux-image-generic (Ubuntu package): before 5.4.0.147.145

linux-image-oracle-lts-20.04 (Ubuntu package): before 5.4.0.1099.92

linux-image-5.4.0-1067-gkeop (Ubuntu package): before 5.4.0-1067.71

linux-image-gcp-lts-20.04 (Ubuntu package): before 5.4.0.1103.105

linux-image-generic-lpae (Ubuntu package): before 5.4.0.147.145

linux-image-raspi2 (Ubuntu package): before 5.4.0.1083.113

linux-image-5.4.0-1089-kvm (Ubuntu package): before 5.4.0-1089.95

linux-image-aws-lts-20.04 (Ubuntu package): before 5.4.0.1100.97

linux-image-ibm-lts-20.04 (Ubuntu package): before 5.4.0.1047.73

linux-image-gkeop-5.4 (Ubuntu package): before 5.4.0.1067.65

linux-image-azure-lts-20.04 (Ubuntu package): before 5.4.0.1106.99

linux-image-lowlatency (Ubuntu package): before 5.4.0.147.145

linux-image-oem-osp1 (Ubuntu package): before 5.4.0.147.164~18.04.118

linux-image-ibm (Ubuntu package): before 5.4.0.1047.73

linux-image-5.4.0-1097-gke (Ubuntu package): before 5.4.0-1097.104

linux-image-oem (Ubuntu package): before 5.4.0.147.164~18.04.118

linux-image-virtual (Ubuntu package): before 5.4.0.147.145

linux-image-gkeop (Ubuntu package): before 5.4.0.1067.65

linux-image-virtual-hwe-18.04 (Ubuntu package): before 5.4.0.147.164~18.04.118

linux-image-snapdragon-hwe-18.04 (Ubuntu package): before 5.4.0.147.164~18.04.118

linux-image-lowlatency-hwe-18.04 (Ubuntu package): before 5.4.0.147.164~18.04.118

linux-image-generic-lpae-hwe-18.04 (Ubuntu package): before 5.4.0.147.164~18.04.118

linux-image-generic-hwe-18.04 (Ubuntu package): before 5.4.0.147.164~18.04.118

linux-image-5.4.0-147-lowlatency (Ubuntu package): before 5.4.0-147.164~18.04.1

linux-image-5.4.0-147-generic-lpae (Ubuntu package): before 5.4.0-147.164~18.04.1

linux-image-5.4.0-147-generic (Ubuntu package): before 5.4.0-147.164~18.04.1

linux-image-raspi-hwe-18.04 (Ubuntu package): before 5.4.0.1083.80

linux-image-oracle (Ubuntu package): before 5.4.0.1099.108~18.04.71

linux-image-gcp (Ubuntu package): before 5.4.0.1103.79

linux-image-azure (Ubuntu package): before 5.4.0.1106.79

linux-image-aws (Ubuntu package): before 5.4.0.1100.78

linux-image-5.4.0-1106-azure (Ubuntu package): before 5.4.0-1106.112~18.04.1

linux-image-5.4.0-1103-gcp (Ubuntu package): before 5.4.0-1103.112~18.04.1

linux-image-5.4.0-1100-aws (Ubuntu package): before 5.4.0-1100.108~18.04.1

linux-image-5.4.0-1099-oracle (Ubuntu package): before 5.4.0-1099.108~18.04.1

linux-image-5.4.0-1083-raspi (Ubuntu package): before 5.4.0-1083.94~18.04.1

linux-image-5.4.0-1047-ibm (Ubuntu package): before 5.4.0-1047.52~18.04.1

CPE2.3

• cpe:2.3:o:canonical:ubuntu:20.04:*:*:*:*:*:*:
• cpe:2.3:o:canonical:ubuntu:18.04:*:*:*:*:*:*:

External links

http://ubuntu.com/security/notices/USN-6027-1

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.

4) Buffer overflow

EUVDB-ID: #VU74123

Risk: Low

CVSSv3.1: 5.9 [CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-1073

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows an attacker to compromise the affected system.

The vulnerability exists due to a boundary error in the Linux kernel human interface device (HID) subsystem. An attacker with physical access to the system can insert in a specific way malicious USB device, trigger memory corruption and execute arbitrary code.

Mitigation

Update the affected package linux to the latest version.

Vulnerable software versions

Ubuntu: 18.04 - 20.04

linux-image-gke-5.4 (Ubuntu package): before 5.4.0.1097.102

linux-image-kvm (Ubuntu package): before 5.4.0.1089.83

linux-image-gke (Ubuntu package): before 5.4.0.1097.102

linux-image-raspi (Ubuntu package): before 5.4.0.1083.113

linux-image-generic (Ubuntu package): before 5.4.0.147.145

linux-image-oracle-lts-20.04 (Ubuntu package): before 5.4.0.1099.92

linux-image-5.4.0-1067-gkeop (Ubuntu package): before 5.4.0-1067.71

linux-image-gcp-lts-20.04 (Ubuntu package): before 5.4.0.1103.105

linux-image-generic-lpae (Ubuntu package): before 5.4.0.147.145

linux-image-raspi2 (Ubuntu package): before 5.4.0.1083.113

linux-image-5.4.0-1089-kvm (Ubuntu package): before 5.4.0-1089.95

linux-image-aws-lts-20.04 (Ubuntu package): before 5.4.0.1100.97

linux-image-ibm-lts-20.04 (Ubuntu package): before 5.4.0.1047.73

linux-image-gkeop-5.4 (Ubuntu package): before 5.4.0.1067.65

linux-image-azure-lts-20.04 (Ubuntu package): before 5.4.0.1106.99

linux-image-lowlatency (Ubuntu package): before 5.4.0.147.145

linux-image-oem-osp1 (Ubuntu package): before 5.4.0.147.164~18.04.118

linux-image-ibm (Ubuntu package): before 5.4.0.1047.73

linux-image-5.4.0-1097-gke (Ubuntu package): before 5.4.0-1097.104

linux-image-oem (Ubuntu package): before 5.4.0.147.164~18.04.118

linux-image-virtual (Ubuntu package): before 5.4.0.147.145

linux-image-gkeop (Ubuntu package): before 5.4.0.1067.65

linux-image-virtual-hwe-18.04 (Ubuntu package): before 5.4.0.147.164~18.04.118

linux-image-snapdragon-hwe-18.04 (Ubuntu package): before 5.4.0.147.164~18.04.118

linux-image-lowlatency-hwe-18.04 (Ubuntu package): before 5.4.0.147.164~18.04.118

linux-image-generic-lpae-hwe-18.04 (Ubuntu package): before 5.4.0.147.164~18.04.118

linux-image-generic-hwe-18.04 (Ubuntu package): before 5.4.0.147.164~18.04.118

linux-image-5.4.0-147-lowlatency (Ubuntu package): before 5.4.0-147.164~18.04.1

linux-image-5.4.0-147-generic-lpae (Ubuntu package): before 5.4.0-147.164~18.04.1

linux-image-5.4.0-147-generic (Ubuntu package): before 5.4.0-147.164~18.04.1

linux-image-raspi-hwe-18.04 (Ubuntu package): before 5.4.0.1083.80

linux-image-oracle (Ubuntu package): before 5.4.0.1099.108~18.04.71

linux-image-gcp (Ubuntu package): before 5.4.0.1103.79

linux-image-azure (Ubuntu package): before 5.4.0.1106.79

linux-image-aws (Ubuntu package): before 5.4.0.1100.78

linux-image-5.4.0-1106-azure (Ubuntu package): before 5.4.0-1106.112~18.04.1

linux-image-5.4.0-1103-gcp (Ubuntu package): before 5.4.0-1103.112~18.04.1

linux-image-5.4.0-1100-aws (Ubuntu package): before 5.4.0-1100.108~18.04.1

linux-image-5.4.0-1099-oracle (Ubuntu package): before 5.4.0-1099.108~18.04.1

linux-image-5.4.0-1083-raspi (Ubuntu package): before 5.4.0-1083.94~18.04.1

linux-image-5.4.0-1047-ibm (Ubuntu package): before 5.4.0-1047.52~18.04.1

CPE2.3

• cpe:2.3:o:canonical:ubuntu:20.04:*:*:*:*:*:*:
• cpe:2.3:o:canonical:ubuntu:18.04:*:*:*:*:*:*:

External links

http://ubuntu.com/security/notices/USN-6027-1

Q & A

Can this vulnerability be exploited remotely?

No. The attacker should have physical access to the system in order to successfully exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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

5) Memory leak

EUVDB-ID: #VU74124

Risk: Low

CVSSv3.1: 3.9 [CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-1074

CWE-ID: CWE-401 - Missing release of memory after effective lifetime

Exploit availability: No

Description

The vulnerability allows a local user to perform DoS attack on the target system.

The vulnerability exists due memory leak in Linux kernel Stream Control Transmission Protocol. A local user can start a malicious network service and then connect to remotely, forcing the kernel to leak memory.

Mitigation

Update the affected package linux to the latest version.

Vulnerable software versions

Ubuntu: 18.04 - 20.04

linux-image-gke-5.4 (Ubuntu package): before 5.4.0.1097.102

linux-image-kvm (Ubuntu package): before 5.4.0.1089.83

linux-image-gke (Ubuntu package): before 5.4.0.1097.102

linux-image-raspi (Ubuntu package): before 5.4.0.1083.113

linux-image-generic (Ubuntu package): before 5.4.0.147.145

linux-image-oracle-lts-20.04 (Ubuntu package): before 5.4.0.1099.92

linux-image-5.4.0-1067-gkeop (Ubuntu package): before 5.4.0-1067.71

linux-image-gcp-lts-20.04 (Ubuntu package): before 5.4.0.1103.105

linux-image-generic-lpae (Ubuntu package): before 5.4.0.147.145

linux-image-raspi2 (Ubuntu package): before 5.4.0.1083.113

linux-image-5.4.0-1089-kvm (Ubuntu package): before 5.4.0-1089.95

linux-image-aws-lts-20.04 (Ubuntu package): before 5.4.0.1100.97

linux-image-ibm-lts-20.04 (Ubuntu package): before 5.4.0.1047.73

linux-image-gkeop-5.4 (Ubuntu package): before 5.4.0.1067.65

linux-image-azure-lts-20.04 (Ubuntu package): before 5.4.0.1106.99

linux-image-lowlatency (Ubuntu package): before 5.4.0.147.145

linux-image-oem-osp1 (Ubuntu package): before 5.4.0.147.164~18.04.118

linux-image-ibm (Ubuntu package): before 5.4.0.1047.73

linux-image-5.4.0-1097-gke (Ubuntu package): before 5.4.0-1097.104

linux-image-oem (Ubuntu package): before 5.4.0.147.164~18.04.118

linux-image-virtual (Ubuntu package): before 5.4.0.147.145

linux-image-gkeop (Ubuntu package): before 5.4.0.1067.65

linux-image-virtual-hwe-18.04 (Ubuntu package): before 5.4.0.147.164~18.04.118

linux-image-snapdragon-hwe-18.04 (Ubuntu package): before 5.4.0.147.164~18.04.118

linux-image-lowlatency-hwe-18.04 (Ubuntu package): before 5.4.0.147.164~18.04.118

linux-image-generic-lpae-hwe-18.04 (Ubuntu package): before 5.4.0.147.164~18.04.118

linux-image-generic-hwe-18.04 (Ubuntu package): before 5.4.0.147.164~18.04.118

linux-image-5.4.0-147-lowlatency (Ubuntu package): before 5.4.0-147.164~18.04.1

linux-image-5.4.0-147-generic-lpae (Ubuntu package): before 5.4.0-147.164~18.04.1

linux-image-5.4.0-147-generic (Ubuntu package): before 5.4.0-147.164~18.04.1

linux-image-raspi-hwe-18.04 (Ubuntu package): before 5.4.0.1083.80

linux-image-oracle (Ubuntu package): before 5.4.0.1099.108~18.04.71

linux-image-gcp (Ubuntu package): before 5.4.0.1103.79

linux-image-azure (Ubuntu package): before 5.4.0.1106.79

linux-image-aws (Ubuntu package): before 5.4.0.1100.78

linux-image-5.4.0-1106-azure (Ubuntu package): before 5.4.0-1106.112~18.04.1

linux-image-5.4.0-1103-gcp (Ubuntu package): before 5.4.0-1103.112~18.04.1

linux-image-5.4.0-1100-aws (Ubuntu package): before 5.4.0-1100.108~18.04.1

linux-image-5.4.0-1099-oracle (Ubuntu package): before 5.4.0-1099.108~18.04.1

linux-image-5.4.0-1083-raspi (Ubuntu package): before 5.4.0-1083.94~18.04.1

linux-image-5.4.0-1047-ibm (Ubuntu package): before 5.4.0-1047.52~18.04.1

CPE2.3

• cpe:2.3:o:canonical:ubuntu:20.04:*:*:*:*:*:*:
• cpe:2.3:o:canonical:ubuntu:18.04:*:*:*:*:*:*:

External links

http://ubuntu.com/security/notices/USN-6027-1

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.

6) Use-after-free

EUVDB-ID: #VU74122

Risk: Low

CVSSv3.1: 7.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-1281

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a use-after-free error in Linux kernel traffic control index filter (tcindex) when the tcf_exts_exec() function is called with the destroyed tcf_ext. A local user attacker can trigger a use-after-free error and execute arbitrary code with elevated privileges.

Mitigation

Update the affected package linux to the latest version.

Vulnerable software versions

Ubuntu: 18.04 - 20.04

linux-image-gke-5.4 (Ubuntu package): before 5.4.0.1097.102

linux-image-kvm (Ubuntu package): before 5.4.0.1089.83

linux-image-gke (Ubuntu package): before 5.4.0.1097.102

linux-image-raspi (Ubuntu package): before 5.4.0.1083.113

linux-image-generic (Ubuntu package): before 5.4.0.147.145

linux-image-oracle-lts-20.04 (Ubuntu package): before 5.4.0.1099.92

linux-image-5.4.0-1067-gkeop (Ubuntu package): before 5.4.0-1067.71

linux-image-gcp-lts-20.04 (Ubuntu package): before 5.4.0.1103.105

linux-image-generic-lpae (Ubuntu package): before 5.4.0.147.145

linux-image-raspi2 (Ubuntu package): before 5.4.0.1083.113

linux-image-5.4.0-1089-kvm (Ubuntu package): before 5.4.0-1089.95

linux-image-aws-lts-20.04 (Ubuntu package): before 5.4.0.1100.97

linux-image-ibm-lts-20.04 (Ubuntu package): before 5.4.0.1047.73

linux-image-gkeop-5.4 (Ubuntu package): before 5.4.0.1067.65

linux-image-azure-lts-20.04 (Ubuntu package): before 5.4.0.1106.99

linux-image-lowlatency (Ubuntu package): before 5.4.0.147.145

linux-image-oem-osp1 (Ubuntu package): before 5.4.0.147.164~18.04.118

linux-image-ibm (Ubuntu package): before 5.4.0.1047.73

linux-image-5.4.0-1097-gke (Ubuntu package): before 5.4.0-1097.104

linux-image-oem (Ubuntu package): before 5.4.0.147.164~18.04.118

linux-image-virtual (Ubuntu package): before 5.4.0.147.145

linux-image-gkeop (Ubuntu package): before 5.4.0.1067.65

linux-image-virtual-hwe-18.04 (Ubuntu package): before 5.4.0.147.164~18.04.118

linux-image-snapdragon-hwe-18.04 (Ubuntu package): before 5.4.0.147.164~18.04.118

linux-image-lowlatency-hwe-18.04 (Ubuntu package): before 5.4.0.147.164~18.04.118

linux-image-generic-lpae-hwe-18.04 (Ubuntu package): before 5.4.0.147.164~18.04.118

linux-image-generic-hwe-18.04 (Ubuntu package): before 5.4.0.147.164~18.04.118

linux-image-5.4.0-147-lowlatency (Ubuntu package): before 5.4.0-147.164~18.04.1

linux-image-5.4.0-147-generic-lpae (Ubuntu package): before 5.4.0-147.164~18.04.1

linux-image-5.4.0-147-generic (Ubuntu package): before 5.4.0-147.164~18.04.1

linux-image-raspi-hwe-18.04 (Ubuntu package): before 5.4.0.1083.80

linux-image-oracle (Ubuntu package): before 5.4.0.1099.108~18.04.71

linux-image-gcp (Ubuntu package): before 5.4.0.1103.79

linux-image-azure (Ubuntu package): before 5.4.0.1106.79

linux-image-aws (Ubuntu package): before 5.4.0.1100.78

linux-image-5.4.0-1106-azure (Ubuntu package): before 5.4.0-1106.112~18.04.1

linux-image-5.4.0-1103-gcp (Ubuntu package): before 5.4.0-1103.112~18.04.1

linux-image-5.4.0-1100-aws (Ubuntu package): before 5.4.0-1100.108~18.04.1

linux-image-5.4.0-1099-oracle (Ubuntu package): before 5.4.0-1099.108~18.04.1

linux-image-5.4.0-1083-raspi (Ubuntu package): before 5.4.0-1083.94~18.04.1

linux-image-5.4.0-1047-ibm (Ubuntu package): before 5.4.0-1047.52~18.04.1

CPE2.3

• cpe:2.3:o:canonical:ubuntu:20.04:*:*:*:*:*:*:
• cpe:2.3:o:canonical:ubuntu:18.04:*:*:*:*:*:*:

External links

http://ubuntu.com/security/notices/USN-6027-1

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.

7) Double Free

EUVDB-ID: #VU73766

Risk: Low

CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-26545

CWE-ID: CWE-415 - Double Free

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a double free in net/mpls/af_mpls.c during the renaming of a device. A local user can trigger a double free error and execute arbitrary code with elevated privileges.

Mitigation

Update the affected package linux to the latest version.

Vulnerable software versions

Ubuntu: 18.04 - 20.04

linux-image-gke-5.4 (Ubuntu package): before 5.4.0.1097.102

linux-image-kvm (Ubuntu package): before 5.4.0.1089.83

linux-image-gke (Ubuntu package): before 5.4.0.1097.102

linux-image-raspi (Ubuntu package): before 5.4.0.1083.113

linux-image-generic (Ubuntu package): before 5.4.0.147.145

linux-image-oracle-lts-20.04 (Ubuntu package): before 5.4.0.1099.92

linux-image-5.4.0-1067-gkeop (Ubuntu package): before 5.4.0-1067.71

linux-image-gcp-lts-20.04 (Ubuntu package): before 5.4.0.1103.105

linux-image-generic-lpae (Ubuntu package): before 5.4.0.147.145

linux-image-raspi2 (Ubuntu package): before 5.4.0.1083.113

linux-image-5.4.0-1089-kvm (Ubuntu package): before 5.4.0-1089.95

linux-image-aws-lts-20.04 (Ubuntu package): before 5.4.0.1100.97

linux-image-ibm-lts-20.04 (Ubuntu package): before 5.4.0.1047.73

linux-image-gkeop-5.4 (Ubuntu package): before 5.4.0.1067.65

linux-image-azure-lts-20.04 (Ubuntu package): before 5.4.0.1106.99

linux-image-lowlatency (Ubuntu package): before 5.4.0.147.145

linux-image-oem-osp1 (Ubuntu package): before 5.4.0.147.164~18.04.118

linux-image-ibm (Ubuntu package): before 5.4.0.1047.73

linux-image-5.4.0-1097-gke (Ubuntu package): before 5.4.0-1097.104

linux-image-oem (Ubuntu package): before 5.4.0.147.164~18.04.118

linux-image-virtual (Ubuntu package): before 5.4.0.147.145

linux-image-gkeop (Ubuntu package): before 5.4.0.1067.65

linux-image-virtual-hwe-18.04 (Ubuntu package): before 5.4.0.147.164~18.04.118

linux-image-snapdragon-hwe-18.04 (Ubuntu package): before 5.4.0.147.164~18.04.118

linux-image-lowlatency-hwe-18.04 (Ubuntu package): before 5.4.0.147.164~18.04.118

linux-image-generic-lpae-hwe-18.04 (Ubuntu package): before 5.4.0.147.164~18.04.118

linux-image-generic-hwe-18.04 (Ubuntu package): before 5.4.0.147.164~18.04.118

linux-image-5.4.0-147-lowlatency (Ubuntu package): before 5.4.0-147.164~18.04.1

linux-image-5.4.0-147-generic-lpae (Ubuntu package): before 5.4.0-147.164~18.04.1

linux-image-5.4.0-147-generic (Ubuntu package): before 5.4.0-147.164~18.04.1

linux-image-raspi-hwe-18.04 (Ubuntu package): before 5.4.0.1083.80

linux-image-oracle (Ubuntu package): before 5.4.0.1099.108~18.04.71

linux-image-gcp (Ubuntu package): before 5.4.0.1103.79

linux-image-azure (Ubuntu package): before 5.4.0.1106.79

linux-image-aws (Ubuntu package): before 5.4.0.1100.78

linux-image-5.4.0-1106-azure (Ubuntu package): before 5.4.0-1106.112~18.04.1

linux-image-5.4.0-1103-gcp (Ubuntu package): before 5.4.0-1103.112~18.04.1

linux-image-5.4.0-1100-aws (Ubuntu package): before 5.4.0-1100.108~18.04.1

linux-image-5.4.0-1099-oracle (Ubuntu package): before 5.4.0-1099.108~18.04.1

linux-image-5.4.0-1083-raspi (Ubuntu package): before 5.4.0-1083.94~18.04.1

linux-image-5.4.0-1047-ibm (Ubuntu package): before 5.4.0-1047.52~18.04.1

CPE2.3

• cpe:2.3:o:canonical:ubuntu:20.04:*:*:*:*:*:*:
• cpe:2.3:o:canonical:ubuntu:18.04:*:*:*:*:*:*:

External links

http://ubuntu.com/security/notices/USN-6027-1

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.