7.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.2 High
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:C/I:C/A:C
0.001 Low
EPSS
Percentile
24.7%
Linux kernel: heap out-of-bounds in AF_PACKET sockets. This new issue is
analogous to previously disclosed CVE-2016-8655. In both cases, a socket
option that changes socket state may race with safety checks in
packet_set_ring. Previously with PACKET_VERSION. This time with
PACKET_RESERVE. The solution is similar: lock the socket for the update.
This issue may be exploitable, we did not investigate further. As this
issue affects PF_PACKET sockets, it requires CAP_NET_RAW in the process
namespace. But note that with user namespaces enabled, any process can
create a namespace in which it has CAP_NET_RAW.
Author | Note |
---|---|
sbeattie | fix subject “net-packet: fix race in packet_set_ring on PACKET_RESERVE” |
smb | While working on the embargoed CVE we decided that Precise cannot be exploited due to the missing user namespace support. |
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
ubuntu | 16.04 | noarch | linux-aws | < 4.4.0-1030.39 | UNKNOWN |
ubuntu | 16.04 | noarch | linux-gke | < 4.4.0-1026.26 | UNKNOWN |
ubuntu | 16.04 | noarch | linux-hwe | < 4.10.0-32.36~16.04.1 | UNKNOWN |
ubuntu | 16.04 | noarch | linux-hwe-edge | < 4.10.0-32.36~16.04.1 | UNKNOWN |
ubuntu | 18.04 | noarch | linux-hwe-edge | < 4.18.0-8.9~18.04.1 | UNKNOWN |
ubuntu | 14.04 | noarch | linux-lts-xenial | < 4.4.0-91.114~14.04.1 | UNKNOWN |
ubuntu | 16.04 | noarch | linux-raspi2 | < 4.4.0-1069.77 | UNKNOWN |
ubuntu | 17.04 | noarch | linux-raspi2 | < 4.10.0-1015.18 | UNKNOWN |
ubuntu | 16.04 | noarch | linux-snapdragon | < 4.4.0-1071.76 | UNKNOWN |
ubuntu | 17.04 | noarch | linux-snapdragon | < 4.4.0-1071.76 | UNKNOWN |
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-1000111
git.kernel.org/pub/scm/linux/kernel/git/davem/net.git/commit/?id=c27927e372f0785f3303e8fad94b85945e2c97b7
launchpad.net/bugs/cve/CVE-2017-1000111
nvd.nist.gov/vuln/detail/CVE-2017-1000111
security-tracker.debian.org/tracker/CVE-2017-1000111
ubuntu.com/security/notices/USN-3384-1
ubuntu.com/security/notices/USN-3384-2
ubuntu.com/security/notices/USN-3385-1
ubuntu.com/security/notices/USN-3385-2
ubuntu.com/security/notices/USN-3386-1
ubuntu.com/security/notices/USN-3386-2
7.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.2 High
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:C/I:C/A:C
0.001 Low
EPSS
Percentile
24.7%