Ubuntu update for linux-aws



Published: 2022-08-11 | Updated: 2024-03-20
Risk Low
Patch available YES
Number of vulnerabilities 9
CVE-ID CVE-2022-1652
CVE-2022-1679
CVE-2022-2585
CVE-2022-2586
CVE-2022-2588
CVE-2022-28893
CVE-2022-29900
CVE-2022-29901
CVE-2022-34918
CWE-ID CWE-416
CWE-399
CWE-415
CWE-1037
CWE-843
Exploitation vector Local
Public exploit Public exploit code for vulnerability #3 is available.
Public exploit code for vulnerability #4 is available.
Vulnerability #5 is being exploited in the wild.
Vulnerability #9 is being exploited in the wild.
Vulnerable software
Subscribe 		Ubuntu
Operating systems & Components / Operating system

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

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

linux-image-5.15.0-1017-azure (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-5.15.0-1013-raspi (Ubuntu package)
Operating systems & Components / Operating system package or component

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

linux-image-5.15.0-1016-oracle (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-5.15.0-1014-gke (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-5.15.0-1017-aws (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-raspi-nolpae (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-ibm (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-gke-5.15 (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-5.15.0-1013-raspi-nolpae (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-5.15.0-1016-gcp (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-5.15.0-1012-ibm (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-5.15.0-1016-kvm (Ubuntu package)
Operating systems & Components / Operating system package or component

Vendor Canonical Ltd.

Security Bulletin

This security bulletin contains information about 9 vulnerabilities.

1) Use-after-free

EUVDB-ID: #VU64434

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-2022-1652

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 use-after-free error in the bad_flp_intr() function. A local user can execute a specially-crafted program to cause a denial of service condition on the system or escalate privileges on the system.

Mitigation

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

Vulnerable software versions

Ubuntu: 20.04 - 22.04

linux-image-kvm (Ubuntu package): before 5.15.0.1016.14

linux-image-raspi (Ubuntu package): before 5.15.0.1013.12

linux-image-5.15.0-1017-azure (Ubuntu package): before 5.15.0-1017.20~20.04.1

linux-image-5.15.0-1013-raspi (Ubuntu package): before 5.15.0-1013.15

linux-image-oracle (Ubuntu package): before 5.15.0.1016.14

linux-image-5.15.0-1016-oracle (Ubuntu package): before 5.15.0-1016.20

linux-image-5.15.0-1014-gke (Ubuntu package): before 5.15.0-1014.17~20.04.1

linux-image-gcp (Ubuntu package): before 5.15.0.1016.21~20.04.1

linux-image-gke (Ubuntu package): before 5.15.0.1014.17

linux-image-5.15.0-1017-aws (Ubuntu package): before 5.15.0-1017.21~20.04.1

linux-image-raspi-nolpae (Ubuntu package): before 5.15.0.1013.12

linux-image-azure (Ubuntu package): before 5.15.0.1017.20~20.04.10

linux-image-ibm (Ubuntu package): before 5.15.0.1012.11

linux-image-gke-5.15 (Ubuntu package): before 5.15.0.1014.17~20.04.1

linux-image-5.15.0-1013-raspi-nolpae (Ubuntu package): before 5.15.0-1013.15

linux-image-aws (Ubuntu package): before 5.15.0.1017.21~20.04.9

linux-image-5.15.0-1016-gcp (Ubuntu package): before 5.15.0-1016.21~20.04.1

linux-image-5.15.0-1012-ibm (Ubuntu package): before 5.15.0-1012.14

linux-image-5.15.0-1016-kvm (Ubuntu package): before 5.15.0-1016.19

External links

http://ubuntu.com/security/notices/USN-5566-1


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) Use-after-free

EUVDB-ID: #VU64861

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-2022-1679

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 ath9k_htc_wait_for_target() function in the Linux kernel’s Atheros wireless adapter driver. A local user can execute arbitrary code with elevated privileges.

Mitigation

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

Vulnerable software versions

Ubuntu: 20.04 - 22.04

linux-image-kvm (Ubuntu package): before 5.15.0.1016.14

linux-image-raspi (Ubuntu package): before 5.15.0.1013.12

linux-image-5.15.0-1017-azure (Ubuntu package): before 5.15.0-1017.20~20.04.1

linux-image-5.15.0-1013-raspi (Ubuntu package): before 5.15.0-1013.15

linux-image-oracle (Ubuntu package): before 5.15.0.1016.14

linux-image-5.15.0-1016-oracle (Ubuntu package): before 5.15.0-1016.20

linux-image-5.15.0-1014-gke (Ubuntu package): before 5.15.0-1014.17~20.04.1

linux-image-gcp (Ubuntu package): before 5.15.0.1016.21~20.04.1

linux-image-gke (Ubuntu package): before 5.15.0.1014.17

linux-image-5.15.0-1017-aws (Ubuntu package): before 5.15.0-1017.21~20.04.1

linux-image-raspi-nolpae (Ubuntu package): before 5.15.0.1013.12

linux-image-azure (Ubuntu package): before 5.15.0.1017.20~20.04.10

linux-image-ibm (Ubuntu package): before 5.15.0.1012.11

linux-image-gke-5.15 (Ubuntu package): before 5.15.0.1014.17~20.04.1

linux-image-5.15.0-1013-raspi-nolpae (Ubuntu package): before 5.15.0-1013.15

linux-image-aws (Ubuntu package): before 5.15.0.1017.21~20.04.9

linux-image-5.15.0-1016-gcp (Ubuntu package): before 5.15.0-1016.21~20.04.1

linux-image-5.15.0-1012-ibm (Ubuntu package): before 5.15.0-1012.14

linux-image-5.15.0-1016-kvm (Ubuntu package): before 5.15.0-1016.19

External links

http://ubuntu.com/security/notices/USN-5566-1


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.

3) Resource management error

EUVDB-ID: #VU66394

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-2022-2585

CWE-ID: CWE-399 - Resource Management Errors

Exploit availability: Yes

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack or escalate privileges on the system.

The vulnerability exists due to improper management of internal resources in POSIX CPU timers when handling death of a process. A local user can crash the kernel or execute arbitrary code.

Mitigation

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

Vulnerable software versions

Ubuntu: 20.04 - 22.04

linux-image-kvm (Ubuntu package): before 5.15.0.1016.14

linux-image-raspi (Ubuntu package): before 5.15.0.1013.12

linux-image-5.15.0-1017-azure (Ubuntu package): before 5.15.0-1017.20~20.04.1

linux-image-5.15.0-1013-raspi (Ubuntu package): before 5.15.0-1013.15

linux-image-oracle (Ubuntu package): before 5.15.0.1016.14

linux-image-5.15.0-1016-oracle (Ubuntu package): before 5.15.0-1016.20

linux-image-5.15.0-1014-gke (Ubuntu package): before 5.15.0-1014.17~20.04.1

linux-image-gcp (Ubuntu package): before 5.15.0.1016.21~20.04.1

linux-image-gke (Ubuntu package): before 5.15.0.1014.17

linux-image-5.15.0-1017-aws (Ubuntu package): before 5.15.0-1017.21~20.04.1

linux-image-raspi-nolpae (Ubuntu package): before 5.15.0.1013.12

linux-image-azure (Ubuntu package): before 5.15.0.1017.20~20.04.10

linux-image-ibm (Ubuntu package): before 5.15.0.1012.11

linux-image-gke-5.15 (Ubuntu package): before 5.15.0.1014.17~20.04.1

linux-image-5.15.0-1013-raspi-nolpae (Ubuntu package): before 5.15.0-1013.15

linux-image-aws (Ubuntu package): before 5.15.0.1017.21~20.04.9

linux-image-5.15.0-1016-gcp (Ubuntu package): before 5.15.0-1016.21~20.04.1

linux-image-5.15.0-1012-ibm (Ubuntu package): before 5.15.0-1012.14

linux-image-5.15.0-1016-kvm (Ubuntu package): before 5.15.0-1016.19

External links

http://ubuntu.com/security/notices/USN-5566-1


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

4) Use-after-free

EUVDB-ID: #VU66396

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-2022-2586

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 the the netfilter subsystem implementation in Linux kernel when preventing one nft object from referencing an nft set in another nft table. A local user can trigger a use-after-free error and execute arbitrary code on the system with elevated privileges.

Mitigation

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

Vulnerable software versions

Ubuntu: 20.04 - 22.04

linux-image-kvm (Ubuntu package): before 5.15.0.1016.14

linux-image-raspi (Ubuntu package): before 5.15.0.1013.12

linux-image-5.15.0-1017-azure (Ubuntu package): before 5.15.0-1017.20~20.04.1

linux-image-5.15.0-1013-raspi (Ubuntu package): before 5.15.0-1013.15

linux-image-oracle (Ubuntu package): before 5.15.0.1016.14

linux-image-5.15.0-1016-oracle (Ubuntu package): before 5.15.0-1016.20

linux-image-5.15.0-1014-gke (Ubuntu package): before 5.15.0-1014.17~20.04.1

linux-image-gcp (Ubuntu package): before 5.15.0.1016.21~20.04.1

linux-image-gke (Ubuntu package): before 5.15.0.1014.17

linux-image-5.15.0-1017-aws (Ubuntu package): before 5.15.0-1017.21~20.04.1

linux-image-raspi-nolpae (Ubuntu package): before 5.15.0.1013.12

linux-image-azure (Ubuntu package): before 5.15.0.1017.20~20.04.10

linux-image-ibm (Ubuntu package): before 5.15.0.1012.11

linux-image-gke-5.15 (Ubuntu package): before 5.15.0.1014.17~20.04.1

linux-image-5.15.0-1013-raspi-nolpae (Ubuntu package): before 5.15.0-1013.15

linux-image-aws (Ubuntu package): before 5.15.0.1017.21~20.04.9

linux-image-5.15.0-1016-gcp (Ubuntu package): before 5.15.0-1016.21~20.04.1

linux-image-5.15.0-1012-ibm (Ubuntu package): before 5.15.0-1012.14

linux-image-5.15.0-1016-kvm (Ubuntu package): before 5.15.0-1016.19

External links

http://ubuntu.com/security/notices/USN-5566-1


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

5) Double Free

EUVDB-ID: #VU66397

Risk: Low

CVSSv3.1: 7.5 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:H/RL:O/RC:C]

CVE-ID: CVE-2022-2588

CWE-ID: CWE-415 - Double Free

Exploit availability: Yes

Description

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

The vulnerability exists due to a double free error within the network packet scheduler implementation in the route4_change() function in Linux kernel when removing all references to a route filter before freeing it. A local user can run a specially crafted program to crash the kernel or execute arbitrary code.

Mitigation

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

Vulnerable software versions

Ubuntu: 20.04 - 22.04

linux-image-kvm (Ubuntu package): before 5.15.0.1016.14

linux-image-raspi (Ubuntu package): before 5.15.0.1013.12

linux-image-5.15.0-1017-azure (Ubuntu package): before 5.15.0-1017.20~20.04.1

linux-image-5.15.0-1013-raspi (Ubuntu package): before 5.15.0-1013.15

linux-image-oracle (Ubuntu package): before 5.15.0.1016.14

linux-image-5.15.0-1016-oracle (Ubuntu package): before 5.15.0-1016.20

linux-image-5.15.0-1014-gke (Ubuntu package): before 5.15.0-1014.17~20.04.1

linux-image-gcp (Ubuntu package): before 5.15.0.1016.21~20.04.1

linux-image-gke (Ubuntu package): before 5.15.0.1014.17

linux-image-5.15.0-1017-aws (Ubuntu package): before 5.15.0-1017.21~20.04.1

linux-image-raspi-nolpae (Ubuntu package): before 5.15.0.1013.12

linux-image-azure (Ubuntu package): before 5.15.0.1017.20~20.04.10

linux-image-ibm (Ubuntu package): before 5.15.0.1012.11

linux-image-gke-5.15 (Ubuntu package): before 5.15.0.1014.17~20.04.1

linux-image-5.15.0-1013-raspi-nolpae (Ubuntu package): before 5.15.0-1013.15

linux-image-aws (Ubuntu package): before 5.15.0.1017.21~20.04.9

linux-image-5.15.0-1016-gcp (Ubuntu package): before 5.15.0-1016.21~20.04.1

linux-image-5.15.0-1012-ibm (Ubuntu package): before 5.15.0-1012.14

linux-image-5.15.0-1016-kvm (Ubuntu package): before 5.15.0-1016.19

External links

http://ubuntu.com/security/notices/USN-5566-1


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?

Yes. This vulnerability is being exploited in the wild.

6) Use-after-free

EUVDB-ID: #VU62074

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-2022-28893

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 SUNRPC subsystem in the Linux kernel. A local user can trigger a use-after-free error and execute arbitrary code with elevated privileges.

Mitigation

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

Vulnerable software versions

Ubuntu: 20.04 - 22.04

linux-image-kvm (Ubuntu package): before 5.15.0.1016.14

linux-image-raspi (Ubuntu package): before 5.15.0.1013.12

linux-image-5.15.0-1017-azure (Ubuntu package): before 5.15.0-1017.20~20.04.1

linux-image-5.15.0-1013-raspi (Ubuntu package): before 5.15.0-1013.15

linux-image-oracle (Ubuntu package): before 5.15.0.1016.14

linux-image-5.15.0-1016-oracle (Ubuntu package): before 5.15.0-1016.20

linux-image-5.15.0-1014-gke (Ubuntu package): before 5.15.0-1014.17~20.04.1

linux-image-gcp (Ubuntu package): before 5.15.0.1016.21~20.04.1

linux-image-gke (Ubuntu package): before 5.15.0.1014.17

linux-image-5.15.0-1017-aws (Ubuntu package): before 5.15.0-1017.21~20.04.1

linux-image-raspi-nolpae (Ubuntu package): before 5.15.0.1013.12

linux-image-azure (Ubuntu package): before 5.15.0.1017.20~20.04.10

linux-image-ibm (Ubuntu package): before 5.15.0.1012.11

linux-image-gke-5.15 (Ubuntu package): before 5.15.0.1014.17~20.04.1

linux-image-5.15.0-1013-raspi-nolpae (Ubuntu package): before 5.15.0-1013.15

linux-image-aws (Ubuntu package): before 5.15.0.1017.21~20.04.9

linux-image-5.15.0-1016-gcp (Ubuntu package): before 5.15.0-1016.21~20.04.1

linux-image-5.15.0-1012-ibm (Ubuntu package): before 5.15.0-1012.14

linux-image-5.15.0-1016-kvm (Ubuntu package): before 5.15.0-1016.19

External links

http://ubuntu.com/security/notices/USN-5566-1


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) Processor optimization removal or modification of security-critical code

EUVDB-ID: #VU65205

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-2022-29900

CWE-ID: CWE-1037 - Processor optimization removal or modification of security-critical code

Exploit availability: No

Description

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

The vulnerability exists due to a mistrained branch predictions for return instructions. A local user can execute arbitrary speculative code under certain microarchitecture-dependent conditions. The vulnerability was dubbed  RETbleed.

Mitigation

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

Vulnerable software versions

Ubuntu: 20.04 - 22.04

linux-image-kvm (Ubuntu package): before 5.15.0.1016.14

linux-image-raspi (Ubuntu package): before 5.15.0.1013.12

linux-image-5.15.0-1017-azure (Ubuntu package): before 5.15.0-1017.20~20.04.1

linux-image-5.15.0-1013-raspi (Ubuntu package): before 5.15.0-1013.15

linux-image-oracle (Ubuntu package): before 5.15.0.1016.14

linux-image-5.15.0-1016-oracle (Ubuntu package): before 5.15.0-1016.20

linux-image-5.15.0-1014-gke (Ubuntu package): before 5.15.0-1014.17~20.04.1

linux-image-gcp (Ubuntu package): before 5.15.0.1016.21~20.04.1

linux-image-gke (Ubuntu package): before 5.15.0.1014.17

linux-image-5.15.0-1017-aws (Ubuntu package): before 5.15.0-1017.21~20.04.1

linux-image-raspi-nolpae (Ubuntu package): before 5.15.0.1013.12

linux-image-azure (Ubuntu package): before 5.15.0.1017.20~20.04.10

linux-image-ibm (Ubuntu package): before 5.15.0.1012.11

linux-image-gke-5.15 (Ubuntu package): before 5.15.0.1014.17~20.04.1

linux-image-5.15.0-1013-raspi-nolpae (Ubuntu package): before 5.15.0-1013.15

linux-image-aws (Ubuntu package): before 5.15.0.1017.21~20.04.9

linux-image-5.15.0-1016-gcp (Ubuntu package): before 5.15.0-1016.21~20.04.1

linux-image-5.15.0-1012-ibm (Ubuntu package): before 5.15.0-1012.14

linux-image-5.15.0-1016-kvm (Ubuntu package): before 5.15.0-1016.19

External links

http://ubuntu.com/security/notices/USN-5566-1


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) Processor optimization removal or modification of security-critical code

EUVDB-ID: #VU65220

Risk: Low

CVSSv3.1: 4.1 [CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-29901

CWE-ID: CWE-1037 - Processor optimization removal or modification of security-critical code

Exploit availability: No

Description

The vulnerability allows a local user to gain access to sensitive information.

The vulnerability exists due to the way non-transparent sharing of branch predictor targets between contexts. A local user can exploit the vulnerability to gain access to sensitive information.

Mitigation

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

Vulnerable software versions

Ubuntu: 20.04 - 22.04

linux-image-kvm (Ubuntu package): before 5.15.0.1016.14

linux-image-raspi (Ubuntu package): before 5.15.0.1013.12

linux-image-5.15.0-1017-azure (Ubuntu package): before 5.15.0-1017.20~20.04.1

linux-image-5.15.0-1013-raspi (Ubuntu package): before 5.15.0-1013.15

linux-image-oracle (Ubuntu package): before 5.15.0.1016.14

linux-image-5.15.0-1016-oracle (Ubuntu package): before 5.15.0-1016.20

linux-image-5.15.0-1014-gke (Ubuntu package): before 5.15.0-1014.17~20.04.1

linux-image-gcp (Ubuntu package): before 5.15.0.1016.21~20.04.1

linux-image-gke (Ubuntu package): before 5.15.0.1014.17

linux-image-5.15.0-1017-aws (Ubuntu package): before 5.15.0-1017.21~20.04.1

linux-image-raspi-nolpae (Ubuntu package): before 5.15.0.1013.12

linux-image-azure (Ubuntu package): before 5.15.0.1017.20~20.04.10

linux-image-ibm (Ubuntu package): before 5.15.0.1012.11

linux-image-gke-5.15 (Ubuntu package): before 5.15.0.1014.17~20.04.1

linux-image-5.15.0-1013-raspi-nolpae (Ubuntu package): before 5.15.0-1013.15

linux-image-aws (Ubuntu package): before 5.15.0.1017.21~20.04.9

linux-image-5.15.0-1016-gcp (Ubuntu package): before 5.15.0-1016.21~20.04.1

linux-image-5.15.0-1012-ibm (Ubuntu package): before 5.15.0-1012.14

linux-image-5.15.0-1016-kvm (Ubuntu package): before 5.15.0-1016.19

External links

http://ubuntu.com/security/notices/USN-5566-1


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) Type Confusion

EUVDB-ID: #VU65360

Risk: Low

CVSSv3.1: 7.5 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:H/RL:O/RC:C]

CVE-ID: CVE-2022-34918

CWE-ID: CWE-843 - Type confusion

Exploit availability: Yes

Description

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

The vulnerability exists in the Linux kernel’s Netfilter subsystem in the way a user provides incorrect input of the NFT_DATA_VERDICT type. A local user can pass specially crafted data to the application, trigger a type confusion error and escalate privileges on the system.

Mitigation

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

Vulnerable software versions

Ubuntu: 20.04 - 22.04

linux-image-kvm (Ubuntu package): before 5.15.0.1016.14

linux-image-raspi (Ubuntu package): before 5.15.0.1013.12

linux-image-5.15.0-1017-azure (Ubuntu package): before 5.15.0-1017.20~20.04.1

linux-image-5.15.0-1013-raspi (Ubuntu package): before 5.15.0-1013.15

linux-image-oracle (Ubuntu package): before 5.15.0.1016.14

linux-image-5.15.0-1016-oracle (Ubuntu package): before 5.15.0-1016.20

linux-image-5.15.0-1014-gke (Ubuntu package): before 5.15.0-1014.17~20.04.1

linux-image-gcp (Ubuntu package): before 5.15.0.1016.21~20.04.1

linux-image-gke (Ubuntu package): before 5.15.0.1014.17

linux-image-5.15.0-1017-aws (Ubuntu package): before 5.15.0-1017.21~20.04.1

linux-image-raspi-nolpae (Ubuntu package): before 5.15.0.1013.12

linux-image-azure (Ubuntu package): before 5.15.0.1017.20~20.04.10

linux-image-ibm (Ubuntu package): before 5.15.0.1012.11

linux-image-gke-5.15 (Ubuntu package): before 5.15.0.1014.17~20.04.1

linux-image-5.15.0-1013-raspi-nolpae (Ubuntu package): before 5.15.0-1013.15

linux-image-aws (Ubuntu package): before 5.15.0.1017.21~20.04.9

linux-image-5.15.0-1016-gcp (Ubuntu package): before 5.15.0-1016.21~20.04.1

linux-image-5.15.0-1012-ibm (Ubuntu package): before 5.15.0-1012.14

linux-image-5.15.0-1016-kvm (Ubuntu package): before 5.15.0-1016.19

External links

http://ubuntu.com/security/notices/USN-5566-1


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?

Yes. This vulnerability is being exploited in the wild.



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