Risk | Low |
Patch available | YES |
Number of vulnerabilities | 5 |
CVE-ID | CVE-2021-39713 CVE-2022-21123 CVE-2022-21125 CVE-2022-21166 CVE-2022-21499 |
CWE-ID | CWE-254 CWE-200 CWE-284 |
Exploitation vector | Local |
Public exploit | N/A |
Vulnerable software Subscribe |
Ubuntu Operating systems & Components / Operating system linux-image-lowlatency (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-generic (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-3.13.0-190-lowlatency (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-server (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-3.13.0-190-generic (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-virtual (Ubuntu package) Operating systems & Components / Operating system package or component |
Vendor | Canonical Ltd. |
Security Bulletin
This security bulletin contains information about 5 vulnerabilities.
EUVDB-ID: #VU63350
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-2021-39713
CWE-ID:
CWE-254 - Security Features
Exploit availability: No
DescriptionThe vulnerability allows a local application to escalate privileges on the system.
The vulnerability exists due to multiple issues in Qdisc implementation related to rcu read lock. A local application can execute arbitrary code with elevated privileges.
Update the affected package linux to the latest version.
Vulnerable software versionsUbuntu: 14.04
linux-image-lowlatency (Ubuntu package): before 3.13.0.190.199
linux-image-generic (Ubuntu package): before 3.13.0.190.199
linux-image-3.13.0-190-lowlatency (Ubuntu package): before 3.13.0.190.199
linux-image-server (Ubuntu package): before 3.13.0.190.199
linux-image-3.13.0-190-generic (Ubuntu package): before 3.13.0.190.199
linux-image-virtual (Ubuntu package): before 3.13.0.190.199
External linkshttp://ubuntu.com/security/notices/USN-5484-1
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.
EUVDB-ID: #VU64364
Risk: Low
CVSSv3.1: 5.2 [CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2022-21123
CWE-ID:
CWE-200 - Information exposure
Exploit availability: No
DescriptionThe vulnerability allows an attacker to gain access to potentially sensitive information.
The vulnerability exists in Intel processors due to excessive data output when DirectPath I/O (PCI-Passthrough) is utilized. An attacker (both local and remote) with administrative access to a virtual machine that has an attached DirectPath I/O (PCI-Passthrough) device can obtain information stored in physical memory about the hypervisor or other virtual machines that reside on the same host.
Update the affected package linux to the latest version.
Vulnerable software versionsUbuntu: 14.04
linux-image-lowlatency (Ubuntu package): before 3.13.0.190.199
linux-image-generic (Ubuntu package): before 3.13.0.190.199
linux-image-3.13.0-190-lowlatency (Ubuntu package): before 3.13.0.190.199
linux-image-server (Ubuntu package): before 3.13.0.190.199
linux-image-3.13.0-190-generic (Ubuntu package): before 3.13.0.190.199
linux-image-virtual (Ubuntu package): before 3.13.0.190.199
External linkshttp://ubuntu.com/security/notices/USN-5484-1
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.
EUVDB-ID: #VU64365
Risk: Low
CVSSv3.1: 5.2 [CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2022-21125
CWE-ID:
CWE-200 - Information exposure
Exploit availability: No
DescriptionThe vulnerability allows an attacker to gain access to potentially sensitive information.
The vulnerability exists in Intel processors due to excessive data output when DirectPath I/O (PCI-Passthrough) is utilized. An attacker (both local and remote) with administrative access to a virtual machine that has an attached DirectPath I/O (PCI-Passthrough) device can obtain information stored in physical memory about the hypervisor or other virtual machines that reside on the same host.
Update the affected package linux to the latest version.
Vulnerable software versionsUbuntu: 14.04
linux-image-lowlatency (Ubuntu package): before 3.13.0.190.199
linux-image-generic (Ubuntu package): before 3.13.0.190.199
linux-image-3.13.0-190-lowlatency (Ubuntu package): before 3.13.0.190.199
linux-image-server (Ubuntu package): before 3.13.0.190.199
linux-image-3.13.0-190-generic (Ubuntu package): before 3.13.0.190.199
linux-image-virtual (Ubuntu package): before 3.13.0.190.199
External linkshttp://ubuntu.com/security/notices/USN-5484-1
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.
EUVDB-ID: #VU64366
Risk: Low
CVSSv3.1: 5.2 [CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2022-21166
CWE-ID:
CWE-200 - Information exposure
Exploit availability: No
DescriptionThe vulnerability allows an attacker to gain access to potentially sensitive information.
The vulnerability exists in Intel processors due to excessive data output when DirectPath I/O (PCI-Passthrough) is utilized. An attacker (both local and remote) with administrative access to a virtual machine that has an attached DirectPath I/O (PCI-Passthrough) device can obtain information stored in physical memory about the hypervisor or other virtual machines that reside on the same host.
MitigationUpdate the affected package linux to the latest version.
Vulnerable software versionsUbuntu: 14.04
linux-image-lowlatency (Ubuntu package): before 3.13.0.190.199
linux-image-generic (Ubuntu package): before 3.13.0.190.199
linux-image-3.13.0-190-lowlatency (Ubuntu package): before 3.13.0.190.199
linux-image-server (Ubuntu package): before 3.13.0.190.199
linux-image-3.13.0-190-generic (Ubuntu package): before 3.13.0.190.199
linux-image-virtual (Ubuntu package): before 3.13.0.190.199
External linkshttp://ubuntu.com/security/notices/USN-5484-1
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.
EUVDB-ID: #VU63961
Risk: Low
CVSSv3.1: 5.2 [CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2022-21499
CWE-ID:
CWE-284 - Improper Access Control
Exploit availability: No
DescriptionThe vulnerability allows a local user to bypass implemented security restrictions.
The vulnerability exists due to improper access restrictions to the kernel debugger when booted in secure boot environments. A local privileged user can bypass UEFI Secure Boot restrictions.
MitigationUpdate the affected package linux to the latest version.
Vulnerable software versionsUbuntu: 14.04
linux-image-lowlatency (Ubuntu package): before 3.13.0.190.199
linux-image-generic (Ubuntu package): before 3.13.0.190.199
linux-image-3.13.0-190-lowlatency (Ubuntu package): before 3.13.0.190.199
linux-image-server (Ubuntu package): before 3.13.0.190.199
linux-image-3.13.0-190-generic (Ubuntu package): before 3.13.0.190.199
linux-image-virtual (Ubuntu package): before 3.13.0.190.199
External linkshttp://ubuntu.com/security/notices/USN-5484-1
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.