Ubuntu update for Linux kernel (regression)
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 2 |
| CVE-ID | CVE-2017-1000364 CVE-2016-4997 |
| CWE-ID | CWE-119 |
| Exploitation vector | Local |
| Public exploit |
Public exploit code for vulnerability #1 is available. Public exploit code for vulnerability #2 is available. |
| Vulnerable software |
Ubuntu Operating systems & Components / Operating system |
| Vendor | Canonical Ltd. |
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
1) Memory corruption
EUVDB-ID: #VU7131
Risk: Medium
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:Green]
CVE-ID: CVE-2017-1000364
CWE-ID:
CWE-119 - Memory corruption
Exploit availability: Yes
Description
The vulnerability allows a local attacker to gain elevated privileges on the target system.
The vulnerability exists due to memory management errors in implementation of various functions under multiple operating systems. A local or remote attacker can trigger the affected application to process specially crafted data, trigger memory corruption and execute arbitrary code on the target system. The vulnerability is dubbed by Qualys researchers as “Stack Clash”.
Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.
MitigationUpdate the affected packages.
Ubuntu: 12.04
CPE2.3 External linkshttps://www.ubuntu.com/usn/usn-3338-2/
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. However, a fully functional exploit for this vulnerability is available.
2) Memory corruption
EUVDB-ID: #VU27
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-2016-4997
CWE-ID:
CWE-119 - Memory corruption
Exploit availability: Yes
DescriptionThe vulnerability allows a local user to obtain elevated privileges on the target system.
The vulnerability exists due to a memory corruption error in the IPT_SO_SET_REPLACE compat_setsockopt() function.
Successful exploitation of this vulnerability may lead to arbitrary code execution with kernel-level privileges.
Update the affected packages.
Ubuntu: 12.04
CPE2.3https://www.ubuntu.com/usn/usn-3338-2/
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. However, a fully functional exploit for this vulnerability is available.
