Ubuntu update for linux-azure



| Updated: 2023-05-21
Risk Medium
Patch available YES
Number of vulnerabilities 17
CVE-ID CVE-2022-20421
CVE-2022-2663
CVE-2022-3303
CVE-2022-3541
CVE-2022-3543
CVE-2022-3544
CVE-2022-3586
CVE-2022-3623
CVE-2022-3646
CVE-2022-3649
CVE-2022-3910
CVE-2022-3977
CVE-2022-40307
CVE-2022-4095
CVE-2022-41849
CVE-2022-41850
CVE-2022-43750
CWE-ID CWE-362
CWE-20
CWE-476
CWE-119
CWE-401
CWE-404
CWE-416
CWE-415
CWE-787
Exploitation vector Network
Public exploit Public exploit code for vulnerability #1 is available.
Public exploit code for vulnerability #11 is available.
Vulnerable software
Subscribe 		Ubuntu
Operating systems & Components / Operating system

linux-image-azure (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-5.19.0-1016-azure (Ubuntu package)
Operating systems & Components / Operating system package or component

Vendor Canonical Ltd.

Security Bulletin

This security bulletin contains information about 17 vulnerabilities.

1) Race condition

EUVDB-ID: #VU67865

Risk: Low

CVSSv3.1: 7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C]

CVE-ID: CVE-2022-20421

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

Exploit availability: Yes

Description

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

The vulnerability exists due to a race condition within the Binder driver in Android kernel in drivers/android/binder.c. A local application can exploit the race to trigger a use-after-free error and execute arbitrary code with elevated privileges.

Mitigation

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

Vulnerable software versions

Ubuntu: 22.10

linux-image-azure (Ubuntu package): before 5.19.0.1016.12

linux-image-5.19.0-1016-azure (Ubuntu package): before 5.19.0-1016.17

CPE2.3 External links

http://ubuntu.com/security/notices/USN-5793-2


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. However, proof of concept for this vulnerability is available.

2) Input validation error

EUVDB-ID: #VU67510

Risk: Medium

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-2663

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass firewall rules.

The vulnerability exists due to insufficient validation of user-supplied input in nf_conntrack_irc in Linux kernel. A remote attacker can send unencrypted IRC with nf_conntrack_irc configured and bypass configured firewall rules.

Mitigation

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

Vulnerable software versions

Ubuntu: 22.10

linux-image-azure (Ubuntu package): before 5.19.0.1016.12

linux-image-5.19.0-1016-azure (Ubuntu package): before 5.19.0-1016.17

CPE2.3 External links

http://ubuntu.com/security/notices/USN-5793-2


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) NULL pointer dereference

EUVDB-ID: #VU68338

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-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.

Mitigation

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

Vulnerable software versions

Ubuntu: 22.10

linux-image-azure (Ubuntu package): before 5.19.0.1016.12

linux-image-5.19.0-1016-azure (Ubuntu package): before 5.19.0-1016.17

CPE2.3 External links

http://ubuntu.com/security/notices/USN-5793-2


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: #VU70875

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-2022-3541

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

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

The vulnerability exists due to a boundary error within the spl2sw_nvmem_get_mac_address() function in drivers/net/ethernet/sunplus/spl2sw_driver.c in Linux kernel BPF implementation. A local user can trigger memory corruption and execute arbitrary code on the system.

Mitigation

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

Vulnerable software versions

Ubuntu: 22.10

linux-image-azure (Ubuntu package): before 5.19.0.1016.12

linux-image-5.19.0-1016-azure (Ubuntu package): before 5.19.0-1016.17

CPE2.3 External links

http://ubuntu.com/security/notices/USN-5793-2


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) Memory leak

EUVDB-ID: #VU69798

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-2022-3543

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

Exploit availability: No

Description

The vulnerability allows a local user to perform a DoS attack.

The vulnerability exists due memory leak within the unix_sock_destructor/unix_release_sock() function in net/unix/af_unix.c. A local user can force the system to leak memory and perform denial of service attack.

Mitigation

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

Vulnerable software versions

Ubuntu: 22.10

linux-image-azure (Ubuntu package): before 5.19.0.1016.12

linux-image-5.19.0-1016-azure (Ubuntu package): before 5.19.0-1016.17

CPE2.3 External links

http://ubuntu.com/security/notices/USN-5793-2


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) Improper Resource Shutdown or Release

EUVDB-ID: #VU70876

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-2022-3544

CWE-ID: CWE-404 - Improper Resource Shutdown or Release

Exploit availability: No

Description

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

The vulnerability exists due to improper resource management within the damon_sysfs_add_target() function in mm/damon/sysfs.c in Linux kernel Netfilter. A local user can cause the kernel to crash.

Mitigation

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

Vulnerable software versions

Ubuntu: 22.10

linux-image-azure (Ubuntu package): before 5.19.0.1016.12

linux-image-5.19.0-1016-azure (Ubuntu package): before 5.19.0-1016.17

CPE2.3 External links

http://ubuntu.com/security/notices/USN-5793-2


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) Use-after-free

EUVDB-ID: #VU69708

Risk: Low

CVSSv3.1: 2.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-3586

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

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

The vulnerability exists due to a use-after-free error 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. A local user can perform a denial of service (DoS) attack.

Mitigation

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

Vulnerable software versions

Ubuntu: 22.10

linux-image-azure (Ubuntu package): before 5.19.0.1016.12

linux-image-5.19.0-1016-azure (Ubuntu package): before 5.19.0-1016.17

CPE2.3 External links

http://ubuntu.com/security/notices/USN-5793-2


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) Race condition

EUVDB-ID: #VU69794

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-2022-3623

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 the follow_page_pte() function in mm/gup.c. A local user can exploit the race and escalate privileges on the system.

Mitigation

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

Vulnerable software versions

Ubuntu: 22.10

linux-image-azure (Ubuntu package): before 5.19.0.1016.12

linux-image-5.19.0-1016-azure (Ubuntu package): before 5.19.0-1016.17

CPE2.3 External links

http://ubuntu.com/security/notices/USN-5793-2


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) NULL pointer dereference

EUVDB-ID: #VU69299

Risk: Low

CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-3646

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

Description

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

The vulnerability exists due to a NULL pointer dereference error in the nilfs2 filesystem driver within the nilfs_attach_log_writer() function in fs/nilfs2/segment.c in Linux kernel. A remote attacker can trick the victim into mounting a specially crafted image and perform a denial of service (DoS) attack.

Mitigation

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

Vulnerable software versions

Ubuntu: 22.10

linux-image-azure (Ubuntu package): before 5.19.0.1016.12

linux-image-5.19.0-1016-azure (Ubuntu package): before 5.19.0-1016.17

CPE2.3 External links

http://ubuntu.com/security/notices/USN-5793-2


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.

10) Use-after-free

EUVDB-ID: #VU69298

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-3649

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error within the nilfs2 filesystem driver in nilfs_new_inode() function in fs/nilfs2/inode.c in Linux kernel. A remote attacker can trick the victim into mounting a specially crafted image, trigger a use-after-free error and execute arbitrary code on the system.

Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.

Mitigation

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

Vulnerable software versions

Ubuntu: 22.10

linux-image-azure (Ubuntu package): before 5.19.0.1016.12

linux-image-5.19.0-1016-azure (Ubuntu package): before 5.19.0-1016.17

CPE2.3 External links

http://ubuntu.com/security/notices/USN-5793-2


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.

11) Use-after-free

EUVDB-ID: #VU70874

Risk: Low

CVSSv3.1: 7.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C]

CVE-ID: CVE-2022-3910

CWE-ID: CWE-416 - Use After Free

Exploit availability: Yes

Description

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

The vulnerability exists due to a use-after-free error within io_uring in Linux kernel. A local user can execute arbitrary code with elevated privileges.

Mitigation

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

Vulnerable software versions

Ubuntu: 22.10

linux-image-azure (Ubuntu package): before 5.19.0.1016.12

linux-image-5.19.0-1016-azure (Ubuntu package): before 5.19.0-1016.17

CPE2.3 External links

http://ubuntu.com/security/notices/USN-5793-2


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. However, proof of concept for this vulnerability is available.

12) Use-after-free

EUVDB-ID: #VU69271

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-2022-3977

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 within the mctp_sk_unhash(0 function in net/mctp/af_mctp.c. A local user can trigger a use-after-free error and escalate privileges on the system.


Mitigation

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

Vulnerable software versions

Ubuntu: 22.10

linux-image-azure (Ubuntu package): before 5.19.0.1016.12

linux-image-5.19.0-1016-azure (Ubuntu package): before 5.19.0-1016.17

CPE2.3 External links

http://ubuntu.com/security/notices/USN-5793-2


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.

13) Use-after-free

EUVDB-ID: #VU67915

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-2022-40307

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

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

The vulnerability exists due to a use-after-free error within the drivers/firmware/efi/capsule-loader.c in Linux kernel. A local user can trigger a use-after-free error and perform a denial of service (DoS) attack.

Mitigation

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

Vulnerable software versions

Ubuntu: 22.10

linux-image-azure (Ubuntu package): before 5.19.0.1016.12

linux-image-5.19.0-1016-azure (Ubuntu package): before 5.19.0-1016.17

CPE2.3 External links

http://ubuntu.com/security/notices/USN-5793-2


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.

14) Double Free

EUVDB-ID: #VU69805

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-2022-4095

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 boundary error within the cmd_hdl_filter() function in drivers/staging/rtl8712/rtl8712_cmd.c. A local user can trigger a double free error and execute arbitrary code with escalated privileges.


Mitigation

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

Vulnerable software versions

Ubuntu: 22.10

linux-image-azure (Ubuntu package): before 5.19.0.1016.12

linux-image-5.19.0-1016-azure (Ubuntu package): before 5.19.0-1016.17

CPE2.3 External links

http://ubuntu.com/security/notices/USN-5793-2


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.

15) Race condition

EUVDB-ID: #VU68340

Risk: Low

CVSSv3.1: 3.8 [CVSS:3.1/AV:P/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-41849

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

Exploit availability: No

Description

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

The vulnerability exists due to a race condition in the drivers/video/fbdev/smscufx.c in the Linux kernel. An attacker with physical proximity to the system can remove the USB device while calling open(), cause a race condition between the ufx_ops_open and ufx_usb_disconnect and perform a denial of service (DoS) attack.

Mitigation

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

Vulnerable software versions

Ubuntu: 22.10

linux-image-azure (Ubuntu package): before 5.19.0.1016.12

linux-image-5.19.0-1016-azure (Ubuntu package): before 5.19.0-1016.17

CPE2.3 External links

http://ubuntu.com/security/notices/USN-5793-2


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.

16) Race condition

EUVDB-ID: #VU69792

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-2022-41850

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 perform a denial of service (DoS) attack.

The vulnerability exists due to a race condition within the roccat_report_event() function in drivers/hid/hid-roccat.c. A local user can trigger a use-after-free error and perform a denial of service (DoS) attack.

Mitigation

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

Vulnerable software versions

Ubuntu: 22.10

linux-image-azure (Ubuntu package): before 5.19.0.1016.12

linux-image-5.19.0-1016-azure (Ubuntu package): before 5.19.0-1016.17

CPE2.3 External links

http://ubuntu.com/security/notices/USN-5793-2


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.

17) Out-of-bounds write

EUVDB-ID: #VU69296

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-2022-43750

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 within the drivers/usb/mon/mon_bin.c in usbmon in the Linux kernel. A local user can trigger an out-of-bounds write and execute arbitrary code with elevated privileges.

Mitigation

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

Vulnerable software versions

Ubuntu: 22.10

linux-image-azure (Ubuntu package): before 5.19.0.1016.12

linux-image-5.19.0-1016-azure (Ubuntu package): before 5.19.0-1016.17

CPE2.3 External links

http://ubuntu.com/security/notices/USN-5793-2


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.



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