5.5 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
2.1 Low
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:L/AC:L/Au:N/C:P/I:N/A:N
0.0004 Low
EPSS
Percentile
5.3%
The __get_user_asm_ex macro in arch/x86/include/asm/uaccess.h in the Linux
kernel before 4.7.5 does not initialize a certain integer variable, which
allows local users to obtain sensitive information from kernel stack memory
by triggering failure of a get_user_ex call.
Author | Note |
---|---|
sbeattie | the fix for this introduces CVE-2016-9644. NOTE: This is only an issue if 1c109fabbd51863475cd12ac206bdd249aee35af (added in 4.8) is backported without also backporting 548acf19234dbda5a52d5a8e7e205af46e9da840 (added in 4.6). However, the first attempt at backporting 548acf19234dbda5a52d5a8e7e205af46e9da840 was pulled shortly thereafter. The git commit for xenial is 1f4da631f0159d77908edb10f15e84642980cf16. |
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
ubuntu | 14.04 | noarch | linux | < 3.13.0-132.181 | UNKNOWN |
ubuntu | 16.04 | noarch | linux | < 4.4.0-47.68 | UNKNOWN |
ubuntu | 14.04 | noarch | linux-lts-xenial | < 4.4.0-47.68~14.04.1 | UNKNOWN |
ubuntu | 16.04 | noarch | linux-raspi2 | < 4.4.0-1038.45 | UNKNOWN |
ubuntu | 16.04 | noarch | linux-snapdragon | < 4.4.0-1035.39 | UNKNOWN |
ubuntu | 16.10 | noarch | linux-snapdragon | < 4.4.0-1035.39 | UNKNOWN |
www.openwall.com/lists/oss-security/2016/11/03/2
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-9178
launchpad.net/bugs/cve/CVE-2016-9178
nvd.nist.gov/vuln/detail/CVE-2016-9178
security-tracker.debian.org/tracker/CVE-2016-9178
ubuntu.com/security/notices/USN-3161-3
ubuntu.com/security/notices/USN-3422-1
ubuntu.com/security/notices/USN-3422-2
5.5 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
2.1 Low
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:L/AC:L/Au:N/C:P/I:N/A:N
0.0004 Low
EPSS
Percentile
5.3%