Ubuntu update for linux-raspi

1) Input validation error

EUVDB-ID: #VU60490

Risk: Low

CVSSv3.1: 5.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-33061

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

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

The vulnerability exists due to insufficient control flow management. A local user can pass specially crafted input to the application and perform a denial of service (DoS) attack.

Mitigation

Update the affected package linux-raspi to the latest version.

Vulnerable software versions

Ubuntu: 22.04

linux-image-5.15.0-1014-raspi-nolpae (Ubuntu package): before 5.15.0-1014.16

linux-image-raspi (Ubuntu package): before 5.15.0.1014.13

linux-image-raspi-nolpae (Ubuntu package): before 5.15.0.1014.13

linux-image-5.15.0-1014-raspi (Ubuntu package): before 5.15.0-1014.16

External links

http://ubuntu.com/security/notices/USN-5602-1

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) Memory leak

EUVDB-ID: #VU64079

Risk: Medium

CVSSv3.1: 5.1 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-1012

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

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to insufficient randomization in the net/ipv4/tcp.c when calculating port offsets in Linux kernel cause by small table perturb size. A remote attacker can cause memory leak and gain access to sensitive information.

Mitigation

Update the affected package linux-raspi to the latest version.

Vulnerable software versions

Ubuntu: 22.04

linux-image-5.15.0-1014-raspi-nolpae (Ubuntu package): before 5.15.0-1014.16

linux-image-raspi (Ubuntu package): before 5.15.0.1014.13

linux-image-raspi-nolpae (Ubuntu package): before 5.15.0.1014.13

linux-image-5.15.0-1014-raspi (Ubuntu package): before 5.15.0-1014.16

External links

http://ubuntu.com/security/notices/USN-5602-1

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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

3) Race condition

EUVDB-ID: #VU64156

Risk: Low

CVSSv3.1: 6.1 [CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-1729

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Exploit availability: No

Description

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

The vulnerability exists due to a race condition within sys_perf_event_open() in Linux kernel. A local user can exploit the race and gain unauthorized access to sensitive information and escalate privileges on the system.

Mitigation

Update the affected package linux-raspi to the latest version.

Vulnerable software versions

Ubuntu: 22.04

linux-image-5.15.0-1014-raspi-nolpae (Ubuntu package): before 5.15.0-1014.16

linux-image-raspi (Ubuntu package): before 5.15.0.1014.13

linux-image-raspi-nolpae (Ubuntu package): before 5.15.0.1014.13

linux-image-5.15.0-1014-raspi (Ubuntu package): before 5.15.0-1014.16

External links

http://ubuntu.com/security/notices/USN-5602-1

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) NULL pointer dereference

EUVDB-ID: #VU64262

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-2022-1852

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 KVM module. A local user can perform a denial of service (DoS) attack in the x86_emulate_insn in arch/x86/kvm/emulate.c.

Mitigation

Update the affected package linux-raspi to the latest version.

Vulnerable software versions

Ubuntu: 22.04

linux-image-5.15.0-1014-raspi-nolpae (Ubuntu package): before 5.15.0-1014.16

linux-image-raspi (Ubuntu package): before 5.15.0.1014.13

linux-image-raspi-nolpae (Ubuntu package): before 5.15.0.1014.13

linux-image-5.15.0-1014-raspi (Ubuntu package): before 5.15.0-1014.16

External links

http://ubuntu.com/security/notices/USN-5602-1

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.

5) Out-of-bounds write

EUVDB-ID: #VU66806

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-2022-1943

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: No

Description

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

The vulnerability exists due to a boundary error in the udf_write_fi() function within the UDF file system functionality. A local user can trigger an out-of-bounds write and execute arbitrary code with elevated privileges.

Mitigation

Update the affected package linux-raspi to the latest version.

Vulnerable software versions

Ubuntu: 22.04

linux-image-5.15.0-1014-raspi-nolpae (Ubuntu package): before 5.15.0-1014.16

linux-image-raspi (Ubuntu package): before 5.15.0.1014.13

linux-image-raspi-nolpae (Ubuntu package): before 5.15.0.1014.13

linux-image-5.15.0-1014-raspi (Ubuntu package): before 5.15.0-1014.16

External links

http://ubuntu.com/security/notices/USN-5602-1

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: #VU65641

Risk: Low

CVSSv3.1: 3.2 [CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-1973

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 within the NTFS file system implementation in the Linux kernel. A local user can trigger a use-after-free error and crash the system or gain access to sensitive information.

Mitigation

Update the affected package linux-raspi to the latest version.

Vulnerable software versions

Ubuntu: 22.04

linux-image-5.15.0-1014-raspi-nolpae (Ubuntu package): before 5.15.0-1014.16

linux-image-raspi (Ubuntu package): before 5.15.0.1014.13

linux-image-raspi-nolpae (Ubuntu package): before 5.15.0.1014.13

linux-image-5.15.0-1014-raspi (Ubuntu package): before 5.15.0-1014.16

External links

http://ubuntu.com/security/notices/USN-5602-1

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) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU66810

Risk: Low

CVSSv3.1: 5.8 [CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-2503

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

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

The vulnerability exists due to the way dm-verity is used to restrict module/firmware loads to trusted root filesystem in LoadPin builds. Device-mapper table reloads currently allow users with root privileges to switch out the target with an equivalent dm-linear target and bypass verification till reboot. This allows root to bypass LoadPin and can be used to load untrusted and unverified kernel modules and firmware, which implies arbitrary kernel execution and persistence for peripherals that do not verify firmware updates.

Mitigation

Update the affected package linux-raspi to the latest version.

Vulnerable software versions

Ubuntu: 22.04

linux-image-5.15.0-1014-raspi-nolpae (Ubuntu package): before 5.15.0-1014.16

linux-image-raspi (Ubuntu package): before 5.15.0.1014.13

linux-image-raspi-nolpae (Ubuntu package): before 5.15.0.1014.13

linux-image-5.15.0-1014-raspi (Ubuntu package): before 5.15.0-1014.16

External links

http://ubuntu.com/security/notices/USN-5602-1

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.

8) Out-of-bounds read

EUVDB-ID: #VU66807

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-2022-2873

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

The vulnerability allows a local user to crash the kernel.

The vulnerability exists due to a boundary condition within the Intel iSMT SMBus host controller driver. A local user can send specially crafted data to the I2C_SMBUS IOCTL, trigger an out-of-bounds read error and crash the system.

Mitigation

Update the affected package linux-raspi to the latest version.

Vulnerable software versions

Ubuntu: 22.04

linux-image-5.15.0-1014-raspi-nolpae (Ubuntu package): before 5.15.0-1014.16

linux-image-raspi (Ubuntu package): before 5.15.0.1014.13

linux-image-raspi-nolpae (Ubuntu package): before 5.15.0.1014.13

linux-image-5.15.0-1014-raspi (Ubuntu package): before 5.15.0-1014.16

External links

http://ubuntu.com/security/notices/USN-5602-1

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.

9) Race condition

EUVDB-ID: #VU66934

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-2022-2959

CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Exploit availability: No

Description

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

The vulnerability exists due to a missing lock in the pipe_resize_ring() function within the watch queue when performing operations on an object. A local user can exploit the race and gain unauthorized access to sensitive information and escalate privileges on the system.

Mitigation

Update the affected package linux-raspi to the latest version.

Vulnerable software versions

Ubuntu: 22.04

linux-image-5.15.0-1014-raspi-nolpae (Ubuntu package): before 5.15.0-1014.16

linux-image-raspi (Ubuntu package): before 5.15.0.1014.13

linux-image-raspi-nolpae (Ubuntu package): before 5.15.0.1014.13

linux-image-5.15.0-1014-raspi (Ubuntu package): before 5.15.0-1014.16

External links

http://ubuntu.com/security/notices/USN-5602-1

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.