Ubuntu update for linux

Published: 2023-07-26 | Updated: 2023-09-04

Risk	Medium
Patch available	YES
Number of vulnerabilities	13
CVE-ID	CVE-2022-1184 CVE-2022-3303 CVE-2023-1611 CVE-2023-1670 CVE-2023-1859 CVE-2023-1990 CVE-2023-2124 CVE-2023-3090 CVE-2023-3111 CVE-2023-3141 CVE-2023-3268 CVE-2023-3390 CVE-2023-35001
CWE-ID	CWE-416 CWE-476 CWE-125 CWE-787
Exploitation vector	Network
Public exploit	Public exploit code for vulnerability #13 is available.
Vulnerable software	Ubuntu Operating systems & Components / Operating system linux-image-4.15.0-1122-oracle (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-4.15.0-214-generic-lpae (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-4.15.0-1068-dell300x (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-gcp-lts-18.04 (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-4.15.0-1168-azure (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-4.15.0-1153-gcp (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-azure-lts-18.04 (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-dell300x (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-snapdragon (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-4.15.0-1153-snapdragon (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-4.15.0-214-lowlatency (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-4.15.0-1143-kvm (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-4.15.0-1159-aws (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-4.15.0-214-generic (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-aws-lts-18.04 (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 (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-gcp (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-gke (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-azure (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-aws-hwe (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-generic-hwe-16.04 (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-lowlatency-hwe-16.04 (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-virtual-hwe-16.04 (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 13 vulnerabilities.

1) Use-after-free

EUVDB-ID: #VU64438

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-2022-1184

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

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

The vulnerability exists due to a use-after-free error in fs/ext4/namei.c:dx_insert_block() function in the Linux kernel’s filesystem sub-component.. A local user can trigger use-after-free and perform a denial of service attack.

Mitigation

Update the affected package linux to the latest version.

Vulnerable software versions

Ubuntu: 14.04 - 18.04

linux-image-4.15.0-1122-oracle (Ubuntu package): before Ubuntu Pro

linux-image-4.15.0-214-generic-lpae (Ubuntu package): before Ubuntu Pro

linux-image-4.15.0-1068-dell300x (Ubuntu package): before Ubuntu Pro

linux-image-gcp-lts-18.04 (Ubuntu package): before Ubuntu Pro

linux-image-4.15.0-1168-azure (Ubuntu package): before Ubuntu Pro

linux-image-4.15.0-1153-gcp (Ubuntu package): before Ubuntu Pro

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

linux-image-azure-lts-18.04 (Ubuntu package): before Ubuntu Pro

linux-image-dell300x (Ubuntu package): before Ubuntu Pro

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

linux-image-4.15.0-1153-snapdragon (Ubuntu package): before Ubuntu Pro

linux-image-4.15.0-214-lowlatency (Ubuntu package): before Ubuntu Pro

linux-image-4.15.0-1143-kvm (Ubuntu package): before Ubuntu Pro

linux-image-4.15.0-1159-aws (Ubuntu package): before Ubuntu Pro

linux-image-4.15.0-214-generic (Ubuntu package): before Ubuntu Pro

linux-image-aws-lts-18.04 (Ubuntu package): before Ubuntu Pro

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

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

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

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

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

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

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

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

linux-image-generic-hwe-16.04 (Ubuntu package): before Ubuntu Pro (Infra-only)

linux-image-lowlatency-hwe-16.04 (Ubuntu package): before Ubuntu Pro (Infra-only)

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

linux-image-virtual-hwe-16.04 (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-6252-1

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) NULL pointer dereference

EUVDB-ID: #VU68338

Risk: Low

CVSSv4.0: 4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-3303

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 sound subsystem due to improper locking when handling the SNDCTL_DSP_SYNC ioctl. A privileged local user can trigger a NULL pointer dereference error and perform a denial of service (DoS) attack.