Ubuntu.comUB:CVE-2016-4470CVE-2016-4470
5.5 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
4.9 Medium
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:N/I:N/A:C
0.0005 Low
EPSS
Percentile
15.7%
The key_reject_and_link function in security/keys/key.c in the Linux kernel
through 4.6.3 does not ensure that a certain data structure is initialized,
which allows local users to cause a denial of service (system crash) via
vectors involving a crafted keyctl request2 command.
Notes
| Author | Note |
|---|---|
| jdstrand | android kernels (flo, goldfish, grouper, maguro, mako and manta) are not supported on the Ubuntu Touch 14.10 and earlier preview kernels linux-lts-saucy no longer receives official support linux-lts-quantal no longer receives official support |
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| ubuntu | 12.04 | noarch | linux | < 3.2.0-107.148 | UNKNOWN |
| ubuntu | 14.04 | noarch | linux | < 3.13.0-93.140 | UNKNOWN |
| ubuntu | 16.04 | noarch | linux | < 4.4.0-34.53 | UNKNOWN |
| ubuntu | 12.04 | noarch | linux-armadaxp | < 3.2.0-1670.96 | UNKNOWN |
| ubuntu | 12.04 | noarch | linux-lts-trusty | < 3.13.0-93.140~precise1 | UNKNOWN |
| ubuntu | 14.04 | noarch | linux-lts-vivid | < 3.19.0-66.74~14.04.1 | UNKNOWN |
| ubuntu | 14.04 | noarch | linux-lts-xenial | < 4.4.0-34.53~14.04.1 | UNKNOWN |
| ubuntu | 16.04 | noarch | linux-raspi2 | < 4.4.0-1019.25 | UNKNOWN |
| ubuntu | 16.04 | noarch | linux-snapdragon | < 4.4.0-1022.25 | UNKNOWN |
| ubuntu | 12.04 | noarch | linux-ti-omap4 | < 3.2.0-1485.112 | UNKNOWN |
References
launchpad.net/bugs/cve/CVE-2016-4470
nvd.nist.gov/vuln/detail/CVE-2016-4470
security-tracker.debian.org/tracker/CVE-2016-4470
ubuntu.com/security/notices/USN-3049-1
ubuntu.com/security/notices/USN-3050-1
ubuntu.com/security/notices/USN-3051-1
ubuntu.com/security/notices/USN-3052-1
ubuntu.com/security/notices/USN-3053-1
ubuntu.com/security/notices/USN-3054-1
ubuntu.com/security/notices/USN-3055-1
ubuntu.com/security/notices/USN-3056-1
ubuntu.com/security/notices/USN-3057-1
www.cve.org/CVERecord?id=CVE-2016-4470
www.spinics.net/lists/linux-kernel-janitors/msg26069.html
Related
5.5 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
4.9 Medium
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:N/I:N/A:C
0.0005 Low
EPSS
Percentile
15.7%