Ubuntu update for linux-aws



Risk Low
Patch available YES
Number of vulnerabilities 3
CVE-ID CVE-2023-47233
CVE-2024-26622
CVE-2023-52530
CWE-ID CWE-416
Exploitation vector Local
Public exploit N/A
Vulnerable software
 Ubuntu
Operating systems & Components / Operating system

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

linux-image-aws-lts-22.04 (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-5.15.0-1062-aws (Ubuntu package)
Operating systems & Components / Operating system package or component

linux-image-5.15.0-1059-gke (Ubuntu package)
Operating systems & Components / Operating system package or component

Vendor Canonical Ltd.

Security Bulletin

This security bulletin contains information about 3 vulnerabilities.

1) Use-after-free

EUVDB-ID: #VU82755

Risk: Low

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

CVE-ID: CVE-2023-47233

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows an attacker to escalate privileges on the system.

The vulnerability exists due to a use-after-free error within the brcm80211 in a brcmf_cfg80211_detach in the device unplugging (disconnect the USB by hotplug) code. An attacker with physical access to device can trigger a use-after-free 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-aws (Ubuntu package): before 5.15.0.1062.68~20.04.1

linux-image-gke-5.15 (Ubuntu package): before 5.15.0.1059.58

linux-image-gke (Ubuntu package): before 5.15.0.1059.58

linux-image-aws-lts-22.04 (Ubuntu package): before 5.15.0.1062.62

linux-image-5.15.0-1062-aws (Ubuntu package): before 5.15.0-1062.68~20.04.1

linux-image-5.15.0-1059-gke (Ubuntu package): before 5.15.0-1059.64

CPE2.3 External links

https://ubuntu.com/security/notices/USN-6775-2


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.

2) Use-after-free

EUVDB-ID: #VU87193

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-2024-26622

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 tomoyo_write_control() function. 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-aws (Ubuntu package): before 5.15.0.1062.68~20.04.1

linux-image-gke-5.15 (Ubuntu package): before 5.15.0.1059.58

linux-image-gke (Ubuntu package): before 5.15.0.1059.58

linux-image-aws-lts-22.04 (Ubuntu package): before 5.15.0.1062.62

linux-image-5.15.0-1062-aws (Ubuntu package): before 5.15.0-1062.68~20.04.1

linux-image-5.15.0-1059-gke (Ubuntu package): before 5.15.0-1059.64

CPE2.3 External links

https://ubuntu.com/security/notices/USN-6775-2


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) Use-after-free

EUVDB-ID: #VU90237

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-2023-52530

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 ieee80211_key_link() function in net/mac80211/key.c, within the ieee80211_add_key() function in net/mac80211/cfg.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: 20.04 - 22.04

linux-image-aws (Ubuntu package): before 5.15.0.1062.68~20.04.1

linux-image-gke-5.15 (Ubuntu package): before 5.15.0.1059.58

linux-image-gke (Ubuntu package): before 5.15.0.1059.58

linux-image-aws-lts-22.04 (Ubuntu package): before 5.15.0.1062.62

linux-image-5.15.0-1062-aws (Ubuntu package): before 5.15.0-1062.68~20.04.1

linux-image-5.15.0-1059-gke (Ubuntu package): before 5.15.0-1059.64

CPE2.3 External links

https://ubuntu.com/security/notices/USN-6775-2


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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