Risk | Low |
Patch available | YES |
Number of vulnerabilities | 2 |
CVE-ID | CVE-2022-2586 CVE-2022-2588 |
CWE-ID | CWE-416 CWE-415 |
Exploitation vector | Local |
Public exploit |
Vulnerability #1 is being exploited in the wild. Vulnerability #2 is being exploited in the wild. |
Vulnerable software |
Ubuntu Operating systems & Components / Operating system linux-image-virtual-lts-xenial (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-lowlatency-lts-xenial (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-4.4.0-1111-aws (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-generic-lts-xenial (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-lowlatency (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-kvm (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-4.4.0-231-generic (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-4.4.0-1147-aws (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-4.4.0-231-lowlatency (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-4.4.0-1112-kvm (Ubuntu package) Operating systems & Components / Operating system package or component linux-image-aws (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-virtual (Ubuntu package) Operating systems & Components / Operating system package or component |
Vendor | Canonical Ltd. |
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
EUVDB-ID: #VU66396
Risk: Low
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:Clear]
CVE-ID: CVE-2022-2586
CWE-ID:
CWE-416 - Use After Free
Exploit availability: Yes
DescriptionThe vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the the netfilter subsystem implementation in Linux kernel when preventing one nft object from referencing an nft set in another nft table. A local user can trigger a use-after-free error and execute arbitrary code on the system with elevated privileges.
Update the affected package linux to the latest version.
Vulnerable software versionsUbuntu: 14.04 - 16.04
linux-image-virtual-lts-xenial (Ubuntu package): before 4.4.0.231.237
linux-image-lowlatency-lts-xenial (Ubuntu package): before 4.4.0.231.237
linux-image-4.4.0-1111-aws (Ubuntu package): before 4.4.0.231.237
linux-image-generic-lts-xenial (Ubuntu package): before 4.4.0.231.237
linux-image-lowlatency (Ubuntu package): before 4.4.0.231.237
linux-image-kvm (Ubuntu package): before 4.4.0.231.237
linux-image-4.4.0-231-generic (Ubuntu package): before 4.4.0.231.237
linux-image-4.4.0-1147-aws (Ubuntu package): before 4.4.0.231.237
linux-image-4.4.0-231-lowlatency (Ubuntu package): before 4.4.0.231.237
linux-image-4.4.0-1112-kvm (Ubuntu package): before 4.4.0.231.237
linux-image-aws (Ubuntu package): before 4.4.0.231.237
linux-image-generic (Ubuntu package): before 4.4.0.231.237
linux-image-virtual (Ubuntu package): before 4.4.0.231.237
CPE2.3https://ubuntu.com/security/notices/USN-5557-1
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.
EUVDB-ID: #VU66397
Risk: Low
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:Clear]
CVE-ID: CVE-2022-2588
CWE-ID:
CWE-415 - Double Free
Exploit availability: Yes
DescriptionThe vulnerability allows a local user to escalate privileges on the system.
The
vulnerability exists due to a double free error within the network packet scheduler implementation
in the route4_change() function in Linux kernel when removing all references to a route filter
before freeing it. A local user can run a specially crafted program to
crash the kernel or execute arbitrary code.
Update the affected package linux to the latest version.
Vulnerable software versionsUbuntu: 14.04 - 16.04
linux-image-virtual-lts-xenial (Ubuntu package): before 4.4.0.231.237
linux-image-lowlatency-lts-xenial (Ubuntu package): before 4.4.0.231.237
linux-image-4.4.0-1111-aws (Ubuntu package): before 4.4.0.231.237
linux-image-generic-lts-xenial (Ubuntu package): before 4.4.0.231.237
linux-image-lowlatency (Ubuntu package): before 4.4.0.231.237
linux-image-kvm (Ubuntu package): before 4.4.0.231.237
linux-image-4.4.0-231-generic (Ubuntu package): before 4.4.0.231.237
linux-image-4.4.0-1147-aws (Ubuntu package): before 4.4.0.231.237
linux-image-4.4.0-231-lowlatency (Ubuntu package): before 4.4.0.231.237
linux-image-4.4.0-1112-kvm (Ubuntu package): before 4.4.0.231.237
linux-image-aws (Ubuntu package): before 4.4.0.231.237
linux-image-generic (Ubuntu package): before 4.4.0.231.237
linux-image-virtual (Ubuntu package): before 4.4.0.231.237
CPE2.3https://ubuntu.com/security/notices/USN-5557-1
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.