Ubuntu update for Linux kernel
| Risk | High |
| Patch available | YES |
| Number of vulnerabilities | 20 |
| CVE-ID | CVE-2017-12188 CVE-2017-1000255 CVE-2017-12153 CVE-2017-12154 CVE-2017-12190 CVE-2017-12192 CVE-2017-14156 CVE-2017-14489 CVE-2017-14954 CVE-2017-15265 CVE-2017-15537 CVE-2017-15649 CVE-2017-16525 CVE-2017-16526 CVE-2017-16527 CVE-2017-16529 CVE-2017-16530 CVE-2017-16531 CVE-2017-16533 CVE-2017-16534 |
| CWE-ID | CWE-22 CWE-119 CWE-476 CWE-264 CWE-401 CWE-200 CWE-20 CWE-416 CWE-362 CWE-284 CWE-125 |
| Exploitation vector | Local network |
| Public exploit |
Public exploit code for vulnerability #8 is available. Public exploit code for vulnerability #12 is available. |
| Vulnerable software Subscribe |
Ubuntu Operating systems & Components / Operating system |
| Vendor | Canonical Ltd. |
Security Bulletin
This security bulletin contains information about 20 vulnerabilities.
1) Path traversal
EUVDB-ID: #VU12296
Risk: High
CVSSv3.1: 8.3 [CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2017-12188
CWE-ID:
CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Exploit availability: No
DescriptionThe vulnerability allows an adjacent attacker to cause DoS condition or execute arbitrary code on the target system.
The weakness exists in arch/x86/kvm/mmu.c due to improper traversal of guest pagetable entries to resolve a guest virtual address when nested virtualisation is used. An adjacent attacker can cause the service to crash or execute arbitrary code.
Successful exploitation of the vulnerability may result in system compromise.
Update the affected packages
Ubuntu: 17.10
External linkshttp://www.ubuntu.com/usn/usn-3487-1/
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
2) Memory corruption
EUVDB-ID: #VU8812
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-2017-1000255
CWE-ID:
CWE-119 - Memory corruption
Exploit availability: No
DescriptionThe vulnerability allows a local user to execute arbitrary code with escalated privileges.
The vulnerability exists due to a boundary error in the Linux kernel's when handling signal frame on PowerPC systems. A malicious local user process could craft a signal frame allowing an attacker to corrupt memory and execute arbitrary code on the target system with escalated privileges.
Update the affected packages
Ubuntu: 17.10
External linkshttp://www.ubuntu.com/usn/usn-3487-1/
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: #VU8694
Risk: Low
CVSSv3.1: 5.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2017-12153
CWE-ID:
CWE-476 - NULL Pointer Dereference
Exploit availability: No
DescriptionThe vulnerability allows a local user to perform a denial of service (DoS) attack.
A security flaw was discovered in the nl80211_set_rekey_data() function
in net/wireless/nl80211.c in the Linux kernel through 4.13.3. This
function does not check whether the required attributes are present in
a Netlink request. This request can be issued by a user with the
CAP_NET_ADMIN capability and may result in a NULL pointer dereference
and system crash.
Update the affected packages
Ubuntu: 17.10
External linkshttp://www.ubuntu.com/usn/usn-3487-1/
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) Improper privilege management
EUVDB-ID: #VU8696
Risk: Low
CVSSv3.1: 5.9 [CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2017-12154
CWE-ID:
CWE-264 - Permissions, Privileges, and Access Controls
Exploit availability: No
DescriptionThe vulnerability allows a local user to perform a denial of service (DoS) attack.
The prepare_vmcs02 function in arch/x86/kvm/vmx.c in the Linux kernel
through 4.13.3 does not ensure that the "CR8-load exiting" and
"CR8-store exiting" L0 vmcs02 controls exist in cases where L1 omits
the "use TPR shadow" vmcs12 control, which allows KVM L2 guest OS users
to obtain read and write access to the hardware CR8 register.
Update the affected packages
Ubuntu: 17.10
External linkshttp://www.ubuntu.com/usn/usn-3487-1/
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated user via the local network (LAN).
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
5) Memory leak
EUVDB-ID: #VU10709
Risk: Low
CVSSv3.1: 5.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2017-12190
CWE-ID:
CWE-401 - Missing release of memory after effective lifetime
Exploit availability: No
DescriptionThe vulnerability allows a local attacker to cause DoS condition on the target system.
The weakness exists due to an out-of-memory condition. A local attacker can cause a memory leak and possible system lock up.
Update the affected packages
Ubuntu: 17.10
External linkshttp://www.ubuntu.com/usn/usn-3487-1/
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.
6) NULL pointer dereference
EUVDB-ID: #VU10711
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-2017-12192
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 in the Key Management sub component of the Linux kernel when trying to issue a KEYTCL_READ on a negative key due to a NULL pointer dereference. A local attacker can cause the kernel and service to crash.
Update the affected packages
Ubuntu: 17.10
External linkshttp://www.ubuntu.com/usn/usn-3487-1/
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) Information disclosure
EUVDB-ID: #VU10719
Risk: Low
CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2017-14156
CWE-ID:
CWE-200 - Information exposure
Exploit availability: No
DescriptionThe vulnerability allows a local attacker to obtain sensitive information on the target system.
The weakness exists in the drivers/video/fbdev/aty/atyfb_base.c due to improper initialization of a certain data structure. A local attacker can read locations associated with padding bytes and obtain sensitive information from kernel stack memory.
Update the affected packages
Ubuntu: 17.10
External linkshttp://www.ubuntu.com/usn/usn-3487-1/
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: #VU10720
Risk: Low
CVSSv3.1: 5 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C]
CVE-ID: CVE-2017-14489
CWE-ID:
CWE-20 - Improper input validation
Exploit availability: Yes
DescriptionThe vulnerability allows a local attacker to cause DoS condition on the target system.
The weakness exists in the drivers/scsi/scsi_transport_iscsi.c due to leveraging incorrect length validation. A local attacker can cause a denial of service.
Update the affected packages
Ubuntu: 17.10
External linkshttp://www.ubuntu.com/usn/usn-3487-1/
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. However, proof of concept for this vulnerability is available.
9) Information disclosure
EUVDB-ID: #VU8650
Risk: Low
CVSSv3.1: 5.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2017-14954
CWE-ID:
CWE-200 - Information exposure
Exploit availability: No
DescriptionThe vulnerability allows a local user to obtain potentially sensitive information.
The vulnerability exists due to an error in waitid implementation in kernel/exit.c in the Linux kernel through 4.13.4. A local user can accesses rusage data structures in unintended cases, which allows local users to obtain sensitive information, and bypass the KASLR protection mechanism, via a crafted system call.
MitigationUpdate the affected packages
Ubuntu: 17.10
External linkshttp://www.ubuntu.com/usn/usn-3487-1/
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) Use-after-free
EUVDB-ID: #VU8816
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-2017-15265
CWE-ID:
CWE-416 - Use After Free
Exploit availability: No
DescriptionThe vulnerability allows a local attacker to gain elevated privileges on the target system.
The vulnerability exists due to use-after-free error in the ALSA sequencer interface (/dev/snd/seq). A local attacker can run a specially crafted application, trigger memory corruption and execute arbitrary code with root privileges.
Successful exploitation of the vulnerability may result in system compromise.
Update the affected packages
Ubuntu: 17.10
External linkshttp://www.ubuntu.com/usn/usn-3487-1/
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.
11) Information disclosure
EUVDB-ID: #VU12315
Risk: Low
CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2017-15537
CWE-ID:
CWE-200 - Information exposure
Exploit availability: No
DescriptionThe vulnerability allows a local attacker to obtain potentially sensitive information.
The weakness exists in the x86/fpu (Floating Point Unit) subsystem due to incorrect handling of attempts to set reserved bits in the xstate header via the ptrace() or rt_sigreturn() system call when a processor supports the xsave feature but not the xsaves feature. A local attacker can read the FPU registers of other processes on the system, related to arch/x86/kernel/fpu/regset.c and arch/x86/kernel/fpu/signal.c.
MitigationUpdate the affected packages
Ubuntu: 17.10
External linkshttp://www.ubuntu.com/usn/usn-3487-1/
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.
12) Privilege escalation
EUVDB-ID: #VU11119
Risk: Low
CVSSv3.1: 7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C]
CVE-ID: CVE-2017-15649
Exploit availability: Yes
DescriptionThe vulnerability allows a local attacker to gain elevated privileges on the target system.
The weakness exists in net/packet/af_packet.c due to race condition (involving fanout_add and packet_do_bind. A local attacker can supply specially crafted system calls, trigger mishandling of packet_fanout data structures, trigger use-after-free error and gain root privileges.
Update the affected packages
Ubuntu: 17.10
External linkshttp://www.ubuntu.com/usn/usn-3487-1/
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. However, proof of concept for this vulnerability is available.
13) Use-after-free error
EUVDB-ID: #VU9151
Risk: Low
CVSSv3.1: 5.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2017-16525
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 usb_serial_console_disconnect function in drivers/usb/serial/console.c. A local attacker can use a specially crafted USB device and cause the system to crash.
Successful exploitation of the vulnerability results in denial of service.
Update the affected packages
Ubuntu: 17.10
External linkshttp://www.ubuntu.com/usn/usn-3487-1/
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.
14) Denial of service
EUVDB-ID: #VU9152
Risk: Low
CVSSv3.1: 5.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2017-16526
CWE-ID:
CWE-284 - Improper Access Control
Exploit availability: No
DescriptionThe vulnerability allows a local attacker to cause DoS condition on the target system.
The weakness exists due to a flaw in drivers/uwb/uwbd.c. A local attacker can use a specially crafted USB device and cause the system to crash.
Successful exploitation of the vulnerability results in denial of service.
Update the affected packages
Ubuntu: 17.10
External linkshttp://www.ubuntu.com/usn/usn-3487-1/
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.
15) Use-after-free error
EUVDB-ID: #VU9153
Risk: Low
CVSSv3.1: 5.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2017-16527
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 sound/usb/mixer.c. A local attacker can use a specially crafted USB device and cause the system to crash.
Successful exploitation of the vulnerability results in denial of service.
Update the affected packages
Ubuntu: 17.10
External linkshttp://www.ubuntu.com/usn/usn-3487-1/
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.
16) Out-of-bounds read
EUVDB-ID: #VU9155
Risk: Low
CVSSv3.1: 5.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2017-16529
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 out-of-bounds read in the snd_usb_create_streams function in sound/usb/card.c. A local attacker can use a specially crafted USB device and cause the system to crash.
Successful exploitation of the vulnerability results in denial of service.
Update the affected packages
Ubuntu: 17.10
External linkshttp://www.ubuntu.com/usn/usn-3487-1/
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.
17) Out-of-bounds read
EUVDB-ID: #VU9156
Risk: Low
CVSSv3.1: 5.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2017-16530
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 out-of-bounds read in the drivers/usb/storage/uas-detect.h and drivers/usb/storage/uas.c. A local attacker can use a specially crafted USB device and cause the system to crash.
Successful exploitation of the vulnerability results in denial of service.
Update the affected packages
Ubuntu: 17.10
External linkshttp://www.ubuntu.com/usn/usn-3487-1/
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.
18) Out-of-bounds read
EUVDB-ID: #VU9157
Risk: Low
CVSSv3.1: 5.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2017-16531
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 out-of-bounds read in the drivers/usb/core/config.c. A local attacker can use a specially crafted USB device and cause the system to crash.
Successful exploitation of the vulnerability results in denial of service.
Update the affected packages
Ubuntu: 17.10
External linkshttp://www.ubuntu.com/usn/usn-3487-1/
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.
19) Out-of-bounds read
EUVDB-ID: #VU9159
Risk: Low
CVSSv3.1: 5.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2017-16533
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 out-of-bounds read in the usbhid_parse function in drivers/hid/usbhid/hid-core.c. A local attacker can use a specially crafted USB device and cause the system to crash.
Successful exploitation of the vulnerability results in denial of service.
Update the affected packages
Ubuntu: 17.10
External linkshttp://www.ubuntu.com/usn/usn-3487-1/
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.
20) Out-of-bounds read
EUVDB-ID: #VU9160
Risk: Low
CVSSv3.1: 5.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2017-16534
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 out-of-bounds read in the cdc_parse_cdc_header function in drivers/usb/core/message.c. A local attacker can use a specially crafted USB device and cause the system to crash.
Successful exploitation of the vulnerability results in denial of service.
Update the affected packages
Ubuntu: 17.10
External linkshttp://www.ubuntu.com/usn/usn-3487-1/
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.
