Ubuntu update for linux-aws



Risk Medium
Patch available YES
Number of vulnerabilities 7
CVE-ID CVE-2022-48655
CVE-2024-36016
CVE-2024-26584
CVE-2021-47131
CVE-2024-26907
CVE-2024-26585
CVE-2024-26583
CWE-ID CWE-125
CWE-787
CWE-388
CWE-416
CWE-667
CWE-362
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Ubuntu
Operating systems & Components / Operating system

linux-image-aws-lts-20.04 (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-5.4.0-1129-aws (Ubuntu package)
Operating systems & Components / Operating system package or component

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

Vendor Canonical Ltd.

Security Bulletin

This security bulletin contains information about 7 vulnerabilities.

1) Out-of-bounds read

EUVDB-ID: #VU91400

Risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-48655

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

Exploit availability: No

Description

The vulnerability allows a local user to execute arbitrary code.

The vulnerability exists due to an out-of-bounds read error within the scmi_domain_reset() function in drivers/firmware/arm_scmi/reset.c. A local user can execute arbitrary code.

Mitigation

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

Vulnerable software versions

Ubuntu: 18.04 - 20.04

linux-image-aws-lts-20.04 (Ubuntu package): before 5.4.0.1129.126

linux-image-5.4.0-1129-aws (Ubuntu package): before Ubuntu Pro

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

CPE2.3 External links

https://ubuntu.com/security/notices/USN-6924-2


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.

2) Out-of-bounds write

EUVDB-ID: #VU89898

Risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2024-36016

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 gsm0_receive() function in drivers/tty/n_gsm.c. A local user can trigger an out-of-bounds write and execute arbitrary code with elevated privileges.

Mitigation

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

Vulnerable software versions

Ubuntu: 18.04 - 20.04

linux-image-aws-lts-20.04 (Ubuntu package): before 5.4.0.1129.126

linux-image-5.4.0-1129-aws (Ubuntu package): before Ubuntu Pro

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

CPE2.3 External links

https://ubuntu.com/security/notices/USN-6924-2


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.

3) Error handling

EUVDB-ID: #VU89001

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2024-26584

CWE-ID: CWE-388 - Error Handling

Exploit availability: No

Description

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

The vulnerability exists due to an error when handling backlogging of crypto requests in net/tls/tls_sw.c. A remote attacker can send specially crafted traffic to the system and perform a denial of service attack.

Mitigation

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

Vulnerable software versions

Ubuntu: 18.04 - 20.04

linux-image-aws-lts-20.04 (Ubuntu package): before 5.4.0.1129.126

linux-image-5.4.0-1129-aws (Ubuntu package): before Ubuntu Pro

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

CPE2.3 External links

https://ubuntu.com/security/notices/USN-6924-2


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.

4) Use-after-free

EUVDB-ID: #VU90223

Risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-47131

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 tls_ctx_create() function in net/tls/tls_main.c, within the tls_validate_xmit_skb() function in net/tls/tls_device_fallback.c, within the tls_device_gc_task(), tls_device_rx_resync_new_rec(), tls_device_decrypted() and tls_device_down() functions in net/tls/tls_device.c. A local user can escalate privileges on the system.

Mitigation

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

Vulnerable software versions

Ubuntu: 18.04 - 20.04

linux-image-aws-lts-20.04 (Ubuntu package): before 5.4.0.1129.126

linux-image-5.4.0-1129-aws (Ubuntu package): before Ubuntu Pro

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

CPE2.3 External links

https://ubuntu.com/security/notices/USN-6924-2


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) Improper locking

EUVDB-ID: #VU92037

Risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2024-26907

CWE-ID: CWE-667 - Improper Locking

Exploit availability: No

Description

The vulnerability allows a local user to execute arbitrary code.

The vulnerability exists due to improper locking within the set_eth_seg() function in drivers/infiniband/hw/mlx5/wr.c. A local user can execute arbitrary code.

Mitigation

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

Vulnerable software versions

Ubuntu: 18.04 - 20.04

linux-image-aws-lts-20.04 (Ubuntu package): before 5.4.0.1129.126

linux-image-5.4.0-1129-aws (Ubuntu package): before Ubuntu Pro

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

CPE2.3 External links

https://ubuntu.com/security/notices/USN-6924-2


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) Race condition

EUVDB-ID: #VU89251

Risk: Medium

CVSSv4.0: 4.6 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2024-26585

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

Exploit availability: No

Description

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

The vulnerability exists due to a race condition within the tls_encrypt_done() function in net/tls/tls_sw.c. A remote attacker user can send specially crafted requests to the system and perform a denial of service (DoS) attack.

Mitigation

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

Vulnerable software versions

Ubuntu: 18.04 - 20.04

linux-image-aws-lts-20.04 (Ubuntu package): before 5.4.0.1129.126

linux-image-5.4.0-1129-aws (Ubuntu package): before Ubuntu Pro

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

CPE2.3 External links

https://ubuntu.com/security/notices/USN-6924-2


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.

7) Race condition

EUVDB-ID: #VU87596

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2024-26583

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

Exploit availability: No

Description

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

The vulnerability exists due to a race condition between async notify and socket close in TLS implementation in net/tls/tls_sw.c. A remote attacker can send specially crafted traffic to the system, trigger a race condition and perform a denial of service (DoS) attack.

Mitigation

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

Vulnerable software versions

Ubuntu: 18.04 - 20.04

linux-image-aws-lts-20.04 (Ubuntu package): before 5.4.0.1129.126

linux-image-5.4.0-1129-aws (Ubuntu package): before Ubuntu Pro

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

CPE2.3 External links

https://ubuntu.com/security/notices/USN-6924-2


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.



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