Ubuntu update for linux-raspi



Risk Low
Patch available YES
Number of vulnerabilities 5
CVE-ID CVE-2025-40018
CVE-2025-39993
CVE-2025-39964
CVE-2025-38666
CVE-2025-37958
CWE-ID CWE-416
CWE-20
CWE-667
Exploitation vector Local
Public exploit Public exploit code for vulnerability #3 is available.
Vulnerable software
 Ubuntu
Operating systems & Components / Operating system

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

Vendor Canonical Ltd.

Security Bulletin

This security bulletin contains information about 5 vulnerabilities.

1) Use-after-free

EUVDB-ID: #VU117654

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-2025-40018

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 __ip_vs_ftp_exit() and ip_vs_ftp_init() functions in net/netfilter/ipvs/ip_vs_ftp.c. A local user can escalate privileges on the system.

Mitigation

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

Vulnerable software versions

Ubuntu: 24.04

linux-raspi (Ubuntu package): before 6.8.0-1044.48

CPE2.3 External links

https://ubuntu.com/security/notices/USN-7931-5


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: #VU117250

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-2025-39993

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 display_open(), send_packet(), vfd_write(), lcd_write() and imon_disconnect() functions in drivers/media/rc/imon.c. A local user can escalate privileges on the system.

Mitigation

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

Vulnerable software versions

Ubuntu: 24.04

linux-raspi (Ubuntu package): before 6.8.0-1044.48

CPE2.3 External links

https://ubuntu.com/security/notices/USN-7931-5


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) Input validation error

EUVDB-ID: #VU116928

Risk: Low

CVSSv4.0: 5.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P/U:Clear]

CVE-ID: CVE-2025-39964

CWE-ID: CWE-20 - Improper input validation

Exploit availability: Yes

Description

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

The vulnerability exists due to improper input validation within the include/crypto/if_alg.h. A local user can perform a denial of service (DoS) attack.

Mitigation

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

Vulnerable software versions

Ubuntu: 24.04

linux-raspi (Ubuntu package): before 6.8.0-1044.48

CPE2.3 External links

https://ubuntu.com/security/notices/USN-7931-5


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: #VU114494

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-2025-38666

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 DEFINE_RWLOCK(), __aarp_expire(), aarp_purge() and aarp_proxy_probe_network() functions in net/appletalk/aarp.c. A local user can escalate privileges on the system.

Mitigation

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

Vulnerable software versions

Ubuntu: 24.04

linux-raspi (Ubuntu package): before 6.8.0-1044.48

CPE2.3 External links

https://ubuntu.com/security/notices/USN-7931-5


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: #VU109532

Risk: Low

CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2025-37958

CWE-ID: CWE-667 - Improper Locking

Exploit availability: No

Description

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

The vulnerability exists due to improper locking within the __split_huge_pmd_locked() and split_huge_pmd_locked() functions in mm/huge_memory.c. A local user can perform a denial of service (DoS) attack.

Mitigation

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

Vulnerable software versions

Ubuntu: 24.04

linux-raspi (Ubuntu package): before 6.8.0-1044.48

CPE2.3 External links

https://ubuntu.com/security/notices/USN-7931-5


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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