Ubuntu update for linux



Risk High
Patch available YES
Number of vulnerabilities 10
CVE-ID CVE-2022-3640
CVE-2025-37932
CVE-2025-37798
CVE-2024-53197
CVE-2024-50116
CVE-2024-49958
CVE-2024-46787
CVE-2022-49909
CVE-2021-47576
CVE-2021-47260
CWE-ID CWE-416
CWE-399
CWE-20
CWE-787
CWE-388
CWE-667
CWE-476
Exploitation vector Local
Public exploit Vulnerability #4 is being exploited in the wild.
Vulnerable software
 Ubuntu
Operating systems & Components / Operating system

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

Vendor Canonical Ltd.

Security Bulletin

This security bulletin contains information about 10 vulnerabilities.

1) Use-after-free

EUVDB-ID: #VU70463

Risk: Medium

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:Green]

CVE-ID: CVE-2022-3640

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows an attacker to compromise the affected system.

The vulnerability exists due to a use-after-free error in the 2cap_conn_del() function in net/bluetooth/l2cap_core.c in Linux kernel. An attacker with physical proximity to device can trigger a use-after-free error and execute arbitrary code on the system.


Mitigation

Update the affected package linux to the latest version.

Vulnerable software versions

Ubuntu: 14.04 - 16.04

linux (Ubuntu package): before 4.4.0-270.304~14.04.1

CPE2.3 External links

https://ubuntu.com/security/notices/USN-7607-1


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) Resource management error

EUVDB-ID: #VU109572

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-2025-37932

CWE-ID: CWE-399 - Resource Management Errors

Exploit availability: No

Description

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

The vulnerability exists due to resource management error within the htb_qlen_notify() function in net/sched/sch_htb.c. A local user can perform a denial of service (DoS) attack.

Mitigation

Update the affected package linux to the latest version.

Vulnerable software versions

Ubuntu: 14.04 - 16.04

linux (Ubuntu package): before 4.4.0-270.304~14.04.1

CPE2.3 External links

https://ubuntu.com/security/notices/USN-7607-1


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) Input validation error

EUVDB-ID: #VU108390

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-2025-37798

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

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 qdisc_bstats_update() function in net/sched/sch_fq_codel.c, within the codel_qdisc_dequeue() function in net/sched/sch_codel.c. A local user can perform a denial of service (DoS) attack.

Mitigation

Update the affected package linux to the latest version.

Vulnerable software versions

Ubuntu: 14.04 - 16.04

linux (Ubuntu package): before 4.4.0-270.304~14.04.1

CPE2.3 External links

https://ubuntu.com/security/notices/USN-7607-1


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.

4) Out-of-bounds write

EUVDB-ID: #VU102090

Risk: High

CVSSv4.0: 8.5 [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:A/U:Amber]

CVE-ID: CVE-2024-53197

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: No

Description

The vulnerability allows a local user to compromise the affected system.

The vulnerability exists due to an out-of-bounds write error within the snd_usb_create_quirk(), snd_usb_extigy_boot_quirk(), mbox2_setup_48_24_magic() and snd_usb_mbox2_boot_quirk() functions in sound/usb/quirks.c. A local user can trigger an out-of-bounds write and execute arbitrary code on the system.

Note, the vulnerability is being actively exploited against Android devices.

Mitigation

Update the affected package linux to the latest version.

Vulnerable software versions

Ubuntu: 14.04 - 16.04

linux (Ubuntu package): before 4.4.0-270.304~14.04.1

CPE2.3 External links

https://ubuntu.com/security/notices/USN-7607-1


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.

5) Improper error handling

EUVDB-ID: #VU99831

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-2024-50116

CWE-ID: CWE-388 - Error Handling

Exploit availability: No

Description

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

The vulnerability exists due to improper error handling within the nilfs_forget_buffer() and nilfs_clear_dirty_page() functions in fs/nilfs2/page.c. A local user can perform a denial of service (DoS) attack.

Mitigation

Update the affected package linux to the latest version.

Vulnerable software versions

Ubuntu: 14.04 - 16.04

linux (Ubuntu package): before 4.4.0-270.304~14.04.1

CPE2.3 External links

https://ubuntu.com/security/notices/USN-7607-1


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.

6) Input validation error

EUVDB-ID: #VU99044

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-2024-49958

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

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 ocfs2_reflink_xattr_inline() function in fs/ocfs2/xattr.c, within the __ocfs2_reflink() function in fs/ocfs2/refcounttree.c. A local user can perform a denial of service (DoS) attack.

Mitigation

Update the affected package linux to the latest version.

Vulnerable software versions

Ubuntu: 14.04 - 16.04

linux (Ubuntu package): before 4.4.0-270.304~14.04.1

CPE2.3 External links

https://ubuntu.com/security/notices/USN-7607-1


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) Improper locking

EUVDB-ID: #VU97536

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-2024-46787

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 pmdp_get_lockless() function in mm/userfaultfd.c. A local user can perform a denial of service (DoS) attack.

Mitigation

Update the affected package linux to the latest version.

Vulnerable software versions

Ubuntu: 14.04 - 16.04

linux (Ubuntu package): before 4.4.0-270.304~14.04.1

CPE2.3 External links

https://ubuntu.com/security/notices/USN-7607-1


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) Use-after-free

EUVDB-ID: #VU108229

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-2022-49909

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 l2cap_data_channel() function in net/bluetooth/l2cap_core.c. A local user can escalate privileges on the system.

Mitigation

Update the affected package linux to the latest version.

Vulnerable software versions

Ubuntu: 14.04 - 16.04

linux (Ubuntu package): before 4.4.0-270.304~14.04.1

CPE2.3 External links

https://ubuntu.com/security/notices/USN-7607-1


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) Use-after-free

EUVDB-ID: #VU92299

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-2021-47576

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 resp_mode_select() function in drivers/scsi/scsi_debug.c. A local user can escalate privileges on the system.

Mitigation

Update the affected package linux to the latest version.

Vulnerable software versions

Ubuntu: 14.04 - 16.04

linux (Ubuntu package): before 4.4.0-270.304~14.04.1

CPE2.3 External links

https://ubuntu.com/security/notices/USN-7607-1


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.

10) NULL pointer dereference

EUVDB-ID: #VU91230

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-2021-47260

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 NULL pointer dereference within the nfs_get_client() function in fs/nfs/client.c. A local user can perform a denial of service (DoS) attack.

Mitigation

Update the affected package linux to the latest version.

Vulnerable software versions

Ubuntu: 14.04 - 16.04

linux (Ubuntu package): before 4.4.0-270.304~14.04.1

CPE2.3 External links

https://ubuntu.com/security/notices/USN-7607-1


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.



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