Ubuntu update for Linux kernel
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 10 |
| CVE-ID | CVE-2017-7374 CVE-2017-1000363 CVE-2017-5577 CVE-2017-7294 CVE-2017-8890 CVE-2017-9074 CVE-2017-9075 CVE-2017-9076 CVE-2017-9077 CVE-2017-9242 |
| CWE-ID | CWE-416 CWE-264 CWE-476 CWE-119 CWE-415 CWE-125 CWE-20 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software |
Ubuntu Operating systems & Components / Operating system |
| Vendor | Canonical Ltd. |
Security Bulletin
This security bulletin contains information about 10 vulnerabilities.
1) Use-after-free error
EUVDB-ID: #VU7253
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-2017-7374
CWE-ID:
CWE-416 - Use After Free
Exploit availability: No
DescriptionThe vulnerability allows a local attacker to cause DoS condition on the target system.
The weakness exists due to use-after-free error in fs/crypto/. A local attacker can use keyring keys for ext4, f2fs, or ubifs encryption,
trigger NULL pointer derefence and cause the system to crash.
Successful exploitation of the vulnerability results in denial of service.
Update the affected packages.
Ubuntu: 16.10
CPE2.3 External linkshttps://www.ubuntu.com/usn/usn-3342-1/
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.
2) Privilege escalation
EUVDB-ID: #VU7243
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-2017-1000363
CWE-ID:
CWE-264 - Permissions, Privileges, and Access Controls
Exploit availability: No
DescriptionThe vulnerability allows a local attacker to gain elevated privileges on the target system.
The weakness exists due to an integer overflow in the lp_setup() function. a local attacker can append lp=none arguments to the kernel command line and gain root privileges on the target system.
Successful exploitation results in privilege escalation.
Update the affected packages.
Ubuntu: 16.10
CPE2.3 External linkshttps://www.ubuntu.com/usn/usn-3342-1/
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) Null pointer dereference
EUVDB-ID: #VU7254
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-2017-5577
CWE-ID:
CWE-476 - NULL Pointer Dereference
Exploit availability: No
DescriptionThe vulnerability allows a local attacker to cause DoS condition on the target system.
The weakness exists due to the failure to set an errno value upon certain overflow detections by the vc4_get_bcl function in drivers/gpu/drm/vc4/vc4_gem.c. A local attacker can use a VC4_SUBMIT_CL ioctl system call with inconsistent size values to trigger NULL pointer dereference and cause the system to crash.
Successful exploitation of the vulnerability results in denial of service.
Update the affected packages.
Ubuntu: 16.10
CPE2.3 External linkshttps://www.ubuntu.com/usn/usn-3342-1/
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) Memory corruption
EUVDB-ID: #VU6658
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-2017-7294
CWE-ID:
CWE-119 - Memory corruption
Exploit availability: No
DescriptionThe vulnerability allows a local attacker to cause DoS condition or gain elevated privileges on the target system.
The weakness exists in the vmw_surface_define_ioctl function in drivers/gpu/drm/vmwgfx/vmwgfx_surface.c due to missing validation of addition of certain levels data. A local attacker can trigger integer overflow and out-of-bounds write, cause the service to crash or possibly gain root privileges via a crafted ioctl call for a /dev/dri/renderD* device.
Update the affected packages.
Ubuntu: 16.10
CPE2.3 External linkshttps://www.ubuntu.com/usn/usn-3342-1/
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.
5) Double free error
EUVDB-ID: #VU7244
Risk: Medium
CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]
CVE-ID: CVE-2017-8890
CWE-ID:
CWE-415 - Double Free
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service attack.
The inet_csk_clone_lock function in net/ipv4/inet_connection_sock.c in the Linux kernel through 4.10.15 allows attackers to cause a denial of service (double free) or possibly have unspecified other impact by leveraging use of the accept system call.
Update the affected packages.
Ubuntu: 16.10
CPE2.3 External linkshttps://www.ubuntu.com/usn/usn-3342-1/
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.
6) Out-of-bounds read
EUVDB-ID: #VU7245
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-2017-9074
CWE-ID:
CWE-125 - Out-of-bounds read
Exploit availability: No
DescriptionThe vulnerability allows a local attacker to cause DoS condition on the target system.
The weakness exists due to the the failure to consider that the nexthdr field may be associated with an invalid option by the IPv6 fragmentation implementation. A local attacker can use a specially-crafted socket or system call to trigger out-of-bounds read and cause the system to crash.
Successful exploitation of the vulnerability results in denial of service.
Update the affected packages.
Ubuntu: 16.10
CPE2.3 External linkshttps://www.ubuntu.com/usn/usn-3342-1/
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) Denial of service
EUVDB-ID: #VU7246
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-2017-9075
CWE-ID:
CWE-20 - Improper input validation
Exploit availability: No
DescriptionThe vulnerability allows a local attacker to cause DoS condition on the target system.
The weakness exists due to an error in sctp_v6_create_accept_sk function in net/sctp/ipv6.c.A local attacker can use specially crafted system calls and cause the system to crash.
Successful exploitation of the vulnerability results in denial of service.
Update the affected packages.
Ubuntu: 16.10
CPE2.3 External linkshttps://www.ubuntu.com/usn/usn-3342-1/
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) Denial of service
EUVDB-ID: #VU7247
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-2017-9076
CWE-ID:
CWE-20 - Improper input validation
Exploit availability: No
DescriptionThe vulnerability allows a local attacker to cause DoS condition on the target system.
The weakness exists due to an error in the dccp_v6_request_recv_sock function in net/dccp/ipv6.c.A local attacker can use specially crafted system calls and cause the system to crash.
Successful exploitation of the vulnerability results in denial of service.
Update the affected packages.
Ubuntu: 16.10
CPE2.3 External linkshttps://www.ubuntu.com/usn/usn-3342-1/
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) Denial of service
EUVDB-ID: #VU7248
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-2017-9077
CWE-ID:
CWE-20 - Improper input validation
Exploit availability: No
DescriptionThe vulnerability allows a local attacker to cause DoS condition on the target system.
The weakness exists due to an error in the tcp_v6_syn_recv_sock function in net/ipv6/tcp_ipv6.c. A local attacker can use specially crafted system calls to cause the system to crash.
Successful exploitation of the vulnerability results in denial of service.
Update the affected packages.
Ubuntu: 16.10
CPE2.3 External linkshttps://www.ubuntu.com/usn/usn-3342-1/
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) Denial of service
EUVDB-ID: #VU7250
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-2017-9242
CWE-ID:
CWE-20 - Improper input validation
Exploit availability: No
DescriptionThe vulnerability allows a local attacker to cause DoS condition on the target system.
The weakness exists due to an error in the __ip6_append_data function when checking whether an overwrite of an skb data structure may occur. A local attacker can use specially crafted system calls and cause the system to crash.
Successful exploitation of the vulnerability results in denial of service.
Update the affected packages.
Ubuntu: 16.10
CPE2.3 External linkshttps://www.ubuntu.com/usn/usn-3342-1/
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.
