Ubuntu update for linux-intel-iotg-5.15

1) Resource exhaustion

EUVDB-ID: #VU77953

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-1206

CWE-ID: CWE-400 - Resource exhaustion

Exploit availability: No

Description

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

The vulnerability exists due to a hash collision flaw in the IPv6 connection lookup table in the Linux kernel’s IPv6 functionality when an attacker makes a new kind of SYN flood attack. A remote attacker can increase the CPU usage of the server that accepts IPV6 connections up to 95%.

Mitigation

Update the affected package linux-intel-iotg-5.15 to the latest version.

Vulnerable software versions

Ubuntu: 20.04

linux-image-intel-iotg (Ubuntu package): before 5.15.0.1043.49~20.04.33

linux-image-intel (Ubuntu package): before 5.15.0.1043.49~20.04.33

linux-image-5.15.0-1043-intel-iotg (Ubuntu package): before 5.15.0-1043.49~20.04.1

External links

http://ubuntu.com/security/notices/USN-6445-2

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.

2) Information disclosure

EUVDB-ID: #VU79263

Risk: Low

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-20569

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

The vulnerability allows a remote user to gain access to potentially sensitive information.

The vulnerability exists due to a side channel issue in AMD CPUs. A remote user can influence the return address prediction and gain unauthorized access to sensitive information on the system.

Mitigation

Update the affected package linux-intel-iotg-5.15 to the latest version.

Vulnerable software versions

Ubuntu: 20.04

linux-image-intel-iotg (Ubuntu package): before 5.15.0.1043.49~20.04.33

linux-image-intel (Ubuntu package): before 5.15.0.1043.49~20.04.33

linux-image-5.15.0-1043-intel-iotg (Ubuntu package): before 5.15.0-1043.49~20.04.1

External links

http://ubuntu.com/security/notices/USN-6445-2

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.

3) Reachable Assertion

EUVDB-ID: #VU76392

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-2156

CWE-ID: CWE-617 - Reachable Assertion

Exploit availability: No

Description

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

The vulnerability exists due to a reachable assertion when handling IPv6 RPL protocol. A remote attacker can send specially crafted packets to the system and perform a denial of service (DoS) attack.

Mitigation

Update the affected package linux-intel-iotg-5.15 to the latest version.

Vulnerable software versions

Ubuntu: 20.04

linux-image-intel-iotg (Ubuntu package): before 5.15.0.1043.49~20.04.33

linux-image-intel (Ubuntu package): before 5.15.0.1043.49~20.04.33

linux-image-5.15.0-1043-intel-iotg (Ubuntu package): before 5.15.0-1043.49~20.04.1

External links

http://ubuntu.com/security/notices/USN-6445-2

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) NULL pointer dereference

EUVDB-ID: #VU77704

Risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-3338

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 a NULL pointer dereference error within the DECnet socket in net/decnet/dn_nsp_out.c. A local user can trigger a NULL pointer dereference and perform a denial of service (DoS) attack.

Mitigation

Update the affected package linux-intel-iotg-5.15 to the latest version.

Vulnerable software versions

Ubuntu: 20.04

linux-image-intel-iotg (Ubuntu package): before 5.15.0.1043.49~20.04.33

linux-image-intel (Ubuntu package): before 5.15.0.1043.49~20.04.33

linux-image-5.15.0-1043-intel-iotg (Ubuntu package): before 5.15.0-1043.49~20.04.1

External links

http://ubuntu.com/security/notices/USN-6445-2

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) Buffer overflow

EUVDB-ID: #VU79260

Risk: Medium

CVSSv3.1: 6.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-34319

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a malicious guest to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error in netback when processing certain packets. A malicious guest can send specially crafted packets to the backend, trigger memory corruption and crash the hypervisor.

Mitigation

Update the affected package linux-intel-iotg-5.15 to the latest version.

Vulnerable software versions

Ubuntu: 20.04

linux-image-intel-iotg (Ubuntu package): before 5.15.0.1043.49~20.04.33

linux-image-intel (Ubuntu package): before 5.15.0.1043.49~20.04.33

linux-image-5.15.0-1043-intel-iotg (Ubuntu package): before 5.15.0-1043.49~20.04.1

External links

http://ubuntu.com/security/notices/USN-6445-2

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

6) Out-of-bounds read

EUVDB-ID: #VU79478

Risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-38432

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

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition in fs/smb/server/smb2misc.c in ksmbd. A remote attacker can send specially crafted packets to the system to trigger an out-of-bounds read error and read contents of memory on the system or perform a denial of service (DoS) attack.

Mitigation

Update the affected package linux-intel-iotg-5.15 to the latest version.

Vulnerable software versions

Ubuntu: 20.04

linux-image-intel-iotg (Ubuntu package): before 5.15.0.1043.49~20.04.33

linux-image-intel (Ubuntu package): before 5.15.0.1043.49~20.04.33

linux-image-5.15.0-1043-intel-iotg (Ubuntu package): before 5.15.0-1043.49~20.04.1

External links

http://ubuntu.com/security/notices/USN-6445-2

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) Use-after-free

EUVDB-ID: #VU79479

Risk: Low

CVSSv3.1: 7.1 [CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-3863

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 nfc_llcp_find_local() function in net/nfc/llcp_core.c in NFC implementation in Linux kernel. A local user can execute arbitrary code with elevated privileges.

Mitigation

Update the affected package linux-intel-iotg-5.15 to the latest version.

Vulnerable software versions

Ubuntu: 20.04

linux-image-intel-iotg (Ubuntu package): before 5.15.0.1043.49~20.04.33

linux-image-intel (Ubuntu package): before 5.15.0.1043.49~20.04.33

linux-image-5.15.0-1043-intel-iotg (Ubuntu package): before 5.15.0-1043.49~20.04.1

External links

http://ubuntu.com/security/notices/USN-6445-2

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.

8) Out-of-bounds read

EUVDB-ID: #VU81661

Risk: Medium

CVSSv3.1: 4.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-3865

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

Exploit availability: No

Description

The vulnerability allows a remote user to gain access to potentially sensitive information or perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary condition within the ksmbd_smb2_check_message() function in fs/smb/server/smb2misc.c when parsing smb2_hdr structure. A remote user can send specially crafted packets to ksmbd, trigger an out-of-bounds read error and read contents of memory or perform a denial of service (DoS) attack.

Mitigation

Update the affected package linux-intel-iotg-5.15 to the latest version.

Vulnerable software versions

Ubuntu: 20.04

linux-image-intel-iotg (Ubuntu package): before 5.15.0.1043.49~20.04.33

linux-image-intel (Ubuntu package): before 5.15.0.1043.49~20.04.33

linux-image-5.15.0-1043-intel-iotg (Ubuntu package): before 5.15.0-1043.49~20.04.1

External links

http://ubuntu.com/security/notices/USN-6445-2

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

9) NULL pointer dereference

EUVDB-ID: #VU81662

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-3866

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

Description

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

The vulnerability exists due to a NULL pointer dereference error within the void __handle_ksmbd_work() function in fs/smb/server/server.c when handling chained requests. A remote attacker can send specially crafted data to the ksmbd and perform a denial of service (DoS) attack.

Mitigation

Update the affected package linux-intel-iotg-5.15 to the latest version.

Vulnerable software versions

Ubuntu: 20.04

linux-image-intel-iotg (Ubuntu package): before 5.15.0.1043.49~20.04.33

linux-image-intel (Ubuntu package): before 5.15.0.1043.49~20.04.33

linux-image-5.15.0-1043-intel-iotg (Ubuntu package): before 5.15.0-1043.49~20.04.1

External links

http://ubuntu.com/security/notices/USN-6445-2

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.

10) Use-after-free

EUVDB-ID: #VU79712

Risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-4132

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

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

The vulnerability exists due to a use-after-free error within the siano smsusb module in the Linux kernel. A local user can trigger a use-after-free error and crash the kernel.

Mitigation

Update the affected package linux-intel-iotg-5.15 to the latest version.

Vulnerable software versions

Ubuntu: 20.04

linux-image-intel-iotg (Ubuntu package): before 5.15.0.1043.49~20.04.33

linux-image-intel (Ubuntu package): before 5.15.0.1043.49~20.04.33

linux-image-5.15.0-1043-intel-iotg (Ubuntu package): before 5.15.0-1043.49~20.04.1

External links

http://ubuntu.com/security/notices/USN-6445-2

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.

11) Race condition

EUVDB-ID: #VU79488

Risk: Low

CVSSv3.1: 7.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-4155

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

Exploit availability: No

Description

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

The vulnerability exists due to a race condition in KVM AMD Secure Encrypted Virtualization (SEV) in Linux kernel. A local user can exploit the race and escalate privileges on the system.

Mitigation

Update the affected package linux-intel-iotg-5.15 to the latest version.

Vulnerable software versions

Ubuntu: 20.04

linux-image-intel-iotg (Ubuntu package): before 5.15.0.1043.49~20.04.33

linux-image-intel (Ubuntu package): before 5.15.0.1043.49~20.04.33

linux-image-5.15.0-1043-intel-iotg (Ubuntu package): before 5.15.0-1043.49~20.04.1

External links

http://ubuntu.com/security/notices/USN-6445-2

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.

12) Type Confusion

EUVDB-ID: #VU79485

Risk: Low

CVSSv3.1: 2.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-4194

CWE-ID: CWE-843 - Type confusion

Exploit availability: No

Description

The vulnerability allows a local user to bypass implemented security restrictions.

The vulnerability exists due to a type confusion error in TUN/TAP functionality. A local user can bypass network filters and gain unauthorized access to some resources.

The vulnerability exists due to incomplete fix for #VU72742 (CVE-2023-1076).

Mitigation

Update the affected package linux-intel-iotg-5.15 to the latest version.

Vulnerable software versions

Ubuntu: 20.04

linux-image-intel-iotg (Ubuntu package): before 5.15.0.1043.49~20.04.33

linux-image-intel (Ubuntu package): before 5.15.0.1043.49~20.04.33

linux-image-5.15.0-1043-intel-iotg (Ubuntu package): before 5.15.0-1043.49~20.04.1

External links

http://ubuntu.com/security/notices/USN-6445-2

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.

13) Use-after-free

EUVDB-ID: #VU82306

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-2023-4244

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 Linux kernel netfilter: nf_tables component. A local user can trigger a use-after-free error and execute arbitrary code with elevated privileges.

Mitigation

Update the affected package linux-intel-iotg-5.15 to the latest version.

Vulnerable software versions

Ubuntu: 20.04

linux-image-intel-iotg (Ubuntu package): before 5.15.0.1043.49~20.04.33

linux-image-intel (Ubuntu package): before 5.15.0.1043.49~20.04.33

linux-image-5.15.0-1043-intel-iotg (Ubuntu package): before 5.15.0-1043.49~20.04.1

External links

http://ubuntu.com/security/notices/USN-6445-2

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.

14) Stack-based buffer overflow

EUVDB-ID: #VU79487

Risk: Low

CVSSv3.1: 7.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-4273

CWE-ID: CWE-121 - Stack-based buffer overflow

Exploit availability: No

Description

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

The vulnerability exists due to a boundary error in the implementation of the file name reconstruction function in the exFAT driver in Linux kernel. A local user can trigger a stack overflow and execute arbitrary code with elevated privileges.

Mitigation

Update the affected package linux-intel-iotg-5.15 to the latest version.

Vulnerable software versions

Ubuntu: 20.04

linux-image-intel-iotg (Ubuntu package): before 5.15.0.1043.49~20.04.33

linux-image-intel (Ubuntu package): before 5.15.0.1043.49~20.04.33

linux-image-5.15.0-1043-intel-iotg (Ubuntu package): before 5.15.0-1043.49~20.04.1

External links

http://ubuntu.com/security/notices/USN-6445-2

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.

15) Integer overflow

EUVDB-ID: #VU80877

Risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-42752

CWE-ID: CWE-190 - Integer overflow

Exploit availability: No

Description

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

The vulnerability exists due to integer overflow within the __alloc_skb() function. A local user can trigger integer overflow and crash the kernel.

Mitigation

Update the affected package linux-intel-iotg-5.15 to the latest version.

Vulnerable software versions

Ubuntu: 20.04

linux-image-intel-iotg (Ubuntu package): before 5.15.0.1043.49~20.04.33

linux-image-intel (Ubuntu package): before 5.15.0.1043.49~20.04.33

linux-image-5.15.0-1043-intel-iotg (Ubuntu package): before 5.15.0-1043.49~20.04.1

External links

http://ubuntu.com/security/notices/USN-6445-2

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.

16) Out-of-bounds write

EUVDB-ID: #VU81663

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-2023-42753

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 in the netfilter subsystem in Linux kernel. A local user can trigger an out-of-bounds write and execute arbitrary code with elevated privileges.

Mitigation

Update the affected package linux-intel-iotg-5.15 to the latest version.

Vulnerable software versions

Ubuntu: 20.04

linux-image-intel-iotg (Ubuntu package): before 5.15.0.1043.49~20.04.33

linux-image-intel (Ubuntu package): before 5.15.0.1043.49~20.04.33

linux-image-5.15.0-1043-intel-iotg (Ubuntu package): before 5.15.0-1043.49~20.04.1

External links

http://ubuntu.com/security/notices/USN-6445-2

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.

17) Out-of-bounds read

EUVDB-ID: #VU82305

Risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-42755

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

Exploit availability: No

Description

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

The vulnerability exists due to a boundary condition within the the IPv4 Resource Reservation Protocol (RSVP) classifier function in the Linux kernel. A local user can trigger an out-of-bounds read error and crash the Linux kernel.

Mitigation

Update the affected package linux-intel-iotg-5.15 to the latest version.

Vulnerable software versions

Ubuntu: 20.04

linux-image-intel-iotg (Ubuntu package): before 5.15.0.1043.49~20.04.33

linux-image-intel (Ubuntu package): before 5.15.0.1043.49~20.04.33

linux-image-5.15.0-1043-intel-iotg (Ubuntu package): before 5.15.0-1043.49~20.04.1

External links

http://ubuntu.com/security/notices/USN-6445-2

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.

18) Race condition

EUVDB-ID: #VU81690

Risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-42756

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

Exploit availability: No

Description

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

The vulnerability exists due to a race condition in the Netfilter subsystem. A local user can exploit the race  between IPSET_CMD_ADD and IPSET_CMD_SWAP and gain crash the kernel.

Mitigation

Update the affected package linux-intel-iotg-5.15 to the latest version.

Vulnerable software versions

Ubuntu: 20.04

linux-image-intel-iotg (Ubuntu package): before 5.15.0.1043.49~20.04.33

linux-image-intel (Ubuntu package): before 5.15.0.1043.49~20.04.33

linux-image-5.15.0-1043-intel-iotg (Ubuntu package): before 5.15.0-1043.49~20.04.1

External links

http://ubuntu.com/security/notices/USN-6445-2

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.

19) Buffer overflow

EUVDB-ID: #VU81660

Risk: High

CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-44466

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error within the ceph_decode_32() function in net/ceph/messenger_v2.c in the Ceph filesystem when handling TCP packets. A remote attacker can send specially crafted HELLO or AUTH frames to trigger memory corruption and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Update the affected package linux-intel-iotg-5.15 to the latest version.

Vulnerable software versions

Ubuntu: 20.04

linux-image-intel-iotg (Ubuntu package): before 5.15.0.1043.49~20.04.33

linux-image-intel (Ubuntu package): before 5.15.0.1043.49~20.04.33

linux-image-5.15.0-1043-intel-iotg (Ubuntu package): before 5.15.0-1043.49~20.04.1

External links

http://ubuntu.com/security/notices/USN-6445-2

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.

20) Use-after-free

EUVDB-ID: #VU80583

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-2023-4622

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 unix_stream_sendpage() function in af_unix component. A local user can trigger a use-after-free error and execute arbitrary code with elevated privileges.

Mitigation

Update the affected package linux-intel-iotg-5.15 to the latest version.

Vulnerable software versions

Ubuntu: 20.04

linux-image-intel-iotg (Ubuntu package): before 5.15.0.1043.49~20.04.33

linux-image-intel (Ubuntu package): before 5.15.0.1043.49~20.04.33

linux-image-5.15.0-1043-intel-iotg (Ubuntu package): before 5.15.0-1043.49~20.04.1

External links

http://ubuntu.com/security/notices/USN-6445-2

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.

21) Use-after-free

EUVDB-ID: #VU81664

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-2023-4623

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 the Linux kernel net/sched: sch_hfsc (HFSC qdisc traffic control) component. A local user can trigger a use-after-free error and execute arbitrary code with elevated privileges.

Mitigation

Update the affected package linux-intel-iotg-5.15 to the latest version.

Vulnerable software versions

Ubuntu: 20.04

linux-image-intel-iotg (Ubuntu package): before 5.15.0.1043.49~20.04.33

linux-image-intel (Ubuntu package): before 5.15.0.1043.49~20.04.33

linux-image-5.15.0-1043-intel-iotg (Ubuntu package): before 5.15.0-1043.49~20.04.1

External links

http://ubuntu.com/security/notices/USN-6445-2

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.

22) Use-after-free

EUVDB-ID: #VU81693

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-2023-4921

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 in the qfq_dequeue() function within the the Linux kernel's net/sched: sch_qfq component. A local user can trigger a use-after-free error and execute arbitrary code with elevated privileges.

Mitigation

Update the affected package linux-intel-iotg-5.15 to the latest version.

Vulnerable software versions

Ubuntu: 20.04

linux-image-intel-iotg (Ubuntu package): before 5.15.0.1043.49~20.04.33

linux-image-intel (Ubuntu package): before 5.15.0.1043.49~20.04.33

linux-image-5.15.0-1043-intel-iotg (Ubuntu package): before 5.15.0-1043.49~20.04.1

External links

http://ubuntu.com/security/notices/USN-6445-2

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.

23) Use-after-free

EUVDB-ID: #VU82304

Risk: Low

CVSSv3.1: 5.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-5197

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 Linux kernel netfilter: nf_tables component. A local user can trigger a use-after-free error and execute arbitrary code with elevated privileges.

Mitigation

Update the affected package linux-intel-iotg-5.15 to the latest version.

Vulnerable software versions

Ubuntu: 20.04

linux-image-intel-iotg (Ubuntu package): before 5.15.0.1043.49~20.04.33

linux-image-intel (Ubuntu package): before 5.15.0.1043.49~20.04.33

linux-image-5.15.0-1043-intel-iotg (Ubuntu package): before 5.15.0-1043.49~20.04.1

External links

http://ubuntu.com/security/notices/USN-6445-2

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.