CVE-2016-9178
published 2016-11-28CVE-2016-9178: 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…
PriorityP422medium5.5CVSS 3.0
AVLACLPRLUINSUCHINAN
EPSS
0.42%
34.3th percentile
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.
Affected
17 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 4.7.5-1 (bookworm) | linux 4.7.5-1 (bookworm) |
| debian | linux | — | — |
| linux | linux_kernel | <= 4.7.4 | — |
| linux | linux_kernel | — | — |
| linux | linux_kernel | — | — |
| linux | linux_kernel | — | — |
| linux | linux_kernel | — | — |
| linux | linux_kernel | — | — |
| linux | linux_kernel | — | — |
| linux | linux_kernel | — | — |
| linux | linux_kernel | >= 0 < 4.7.5-1 | 4.7.5-1 |
| linux | linux_kernel | >= 0 < 4.7.5-1 | 4.7.5-1 |
| linux | linux_kernel | >= 0 < 4.7.5-1 | 4.7.5-1 |
| linux | linux_kernel | >= 0 < 4.7.5-1 | 4.7.5-1 |
| linux | linux_kernel | >= 0 < 3.13.0-145.194 | 3.13.0-145.194 |
| linux | linux_kernel | >= 0 < 3.13.0-132.181 | 3.13.0-132.181 |
| linux | linux_kernel | >= 0 < 4.4.0-51.72 | 4.4.0-51.72 |
CVSS provenance
nvdv3.05.5MEDIUMCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
nvdv2.02.1LOWAV:L/AC:L/Au:N/C:P/I:N/A:N
osv7.8HIGH
vendor_ubuntu7.8HIGH
vendor_debian5.5MEDIUM
vendor_redhat5.5MEDIUM
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Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2017-09-18·CVSS 7.8
CVE-2016-10044 [HIGH] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
It was discovered that a buffer overflow existed in the Bluetooth stack of
the Linux kernel when handling L2CAP configuration responses. A physically
proximate attacker could use this to cause a denial of service (system
crash). (CVE-2017-1000251)
It was discovered that the asynchronous I/O (aio) subsystem of the Linux
kernel did not properly set permissions on aio memory mappings in some
situations. An attacker could use this to more easily exploit other
vulnerabilities. (CVE-2016-10044)
Baozeng Ding and Andrey Konovalov discovered a race condition in the L2TPv3
IP Encapsulation implementation in the Linux kernel. A local attacker could
use this to cause a denial of service (system cra
Ubuntu
Linux kernel (Trusty HWE) vulnerabilities
vendor_ubuntu·2017-09-18·CVSS 7.8
CVE-2016-10044 [HIGH] Linux kernel (Trusty HWE) vulnerabilities
Title: Linux kernel (Trusty HWE) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
USN-3422-1 fixed vulnerabilities in the Linux kernel for Ubuntu 14.04
LTS. This update provides the corresponding updates for the Linux
Hardware Enablement (HWE) kernel from Ubuntu 14.04 LTS for Ubuntu
12.04 LTS.
It was discovered that a buffer overflow existed in the Bluetooth stack of
the Linux kernel when handling L2CAP configuration responses. A physically
proximate attacker could use this to cause a denial of service (system
crash). (CVE-2017-1000251)
It was discovered that the asynchronous I/O (aio) subsystem of the Linux
kernel did not properly set permissions on aio memory mappings in some
situations. An attacker could use this to more easily exploit other
vulnerabi
Ubuntu
Linux kernel (Raspberry Pi 2) vulnerabilities
vendor_ubuntu·2016-12-20·CVSS 5.5
CVE-2015-8964 [MEDIUM] Linux kernel (Raspberry Pi 2) vulnerabilities
Title: Linux kernel (Raspberry Pi 2) vulnerabilities
Summary: Several security issues were fixed in the kernel.
Tilman Schmidt and Sasha Levin discovered a use-after-free condition in the
TTY implementation in the Linux kernel. A local attacker could use this to
expose sensitive information (kernel memory). (CVE-2015-8964)
It was discovered that the Video For Linux Two (v4l2) implementation in the
Linux kernel did not properly handle multiple planes when processing a
VIDIOC_DQBUF ioctl(). A local attacker could use this to cause a denial of
service (system crash) or possibly execute arbitrary code. (CVE-2016-4568)
CAI Qian discovered that shared bind mounts in a mount namespace
exponentially added entries without restriction to the Linux kernel's mount
table. A local attacker could use
Red Hat
kernel: Incorrect fix for CVE-2016-9178
vendor_redhat·2016-11-03·CVSS 5.5
CVE-2016-9644 [MEDIUM] kernel: Incorrect fix for CVE-2016-9178
kernel: Incorrect fix for CVE-2016-9178
The __get_user_asm_ex macro in arch/x86/include/asm/uaccess.h in the Linux kernel 4.4.22 through 4.4.28 contains extended asm statements that are incompatible with the exception table, which allows local users to obtain root access on non-SMEP platforms via a crafted application. NOTE: this vulnerability exists because of incorrect backporting of the CVE-2016-9178 patch to older kernels.
Package: kernel (Red Hat Enterprise Linux 5) - Not affected
Package: kernel (Red Hat Enterprise Linux 6) - Not affected
Package: kernel (Red Hat Enterprise Linux 7) - Not affected
Package: kernel-rt (Red Hat Enterprise Linux 7) - Not affected
Package: realtime-kernel (Red Hat Enterprise MRG 2) - Not affected
Red Hat
kernel: Information leak in get_user_ex function
vendor_redhat·2016-09-15·CVSS 5.5
CVE-2016-9178 [MEDIUM] CWE-200 kernel: Information leak in get_user_ex function
kernel: Information leak in get_user_ex function
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.
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.
Statement: This issue does not affect the Linux kernel packages as shipped with Red Hat Enterprise Linux 5 as the code which can trigger the flaw is not present in the products listed.
This issue affects the
Debian
CVE-2016-9644: linux - The __get_user_asm_ex macro in arch/x86/include/asm/uaccess.h in the Linux kerne...
vendor_debian·2016·CVSS 5.5
CVE-2016-9644 [MEDIUM] CVE-2016-9644: linux - The __get_user_asm_ex macro in arch/x86/include/asm/uaccess.h in the Linux kerne...
The __get_user_asm_ex macro in arch/x86/include/asm/uaccess.h in the Linux kernel 4.4.22 through 4.4.28 contains extended asm statements that are incompatible with the exception table, which allows local users to obtain root access on non-SMEP platforms via a crafted application. NOTE: this vulnerability exists because of incorrect backporting of the CVE-2016-9178 patch to older kernels.
Scope: local
bookworm: resolved
bullseye: resolved
forky: resolved
sid: resolved
trixie: resolved
Debian
CVE-2016-9178: linux - The __get_user_asm_ex macro in arch/x86/include/asm/uaccess.h in the Linux kerne...
vendor_debian·2016·CVSS 5.5
CVE-2016-9178 [MEDIUM] CVE-2016-9178: linux - The __get_user_asm_ex macro in arch/x86/include/asm/uaccess.h in the Linux kerne...
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.
Scope: local
bookworm: resolved (fixed in 4.7.5-1)
bullseye: resolved (fixed in 4.7.5-1)
forky: resolved (fixed in 4.7.5-1)
sid: resolved (fixed in 4.7.5-1)
trixie: resolved (fixed in 4.7.5-1)
GHSA
GHSA-qx8p-8rg2-4j84: The __get_user_asm_ex macro in arch/x86/include/asm/uaccess
ghsa_unreviewed·2022-05-17·CVSS 5.5
CVE-2016-9644 [MEDIUM] GHSA-qx8p-8rg2-4j84: The __get_user_asm_ex macro in arch/x86/include/asm/uaccess
The __get_user_asm_ex macro in arch/x86/include/asm/uaccess.h in the Linux kernel 4.4.22 through 4.4.28 contains extended asm statements that are incompatible with the exception table, which allows local users to obtain root access on non-SMEP platforms via a crafted application. NOTE: this vulnerability exists because of incorrect backporting of the CVE-2016-9178 patch to older kernels.
GHSA
GHSA-x43g-x8g8-q2qc: The __get_user_asm_ex macro in arch/x86/include/asm/uaccess
ghsa_unreviewed·2022-05-17
CVE-2016-9178 [MEDIUM] CWE-200 GHSA-x43g-x8g8-q2qc: The __get_user_asm_ex macro in arch/x86/include/asm/uaccess
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.
OSV
linux vulnerabilities
osv·2017-09-18·CVSS 7.8
CVE-2017-1000251 [HIGH] linux vulnerabilities
linux vulnerabilities
It was discovered that a buffer overflow existed in the Bluetooth stack of
the Linux kernel when handling L2CAP configuration responses. A physically
proximate attacker could use this to cause a denial of service (system
crash). (CVE-2017-1000251)
It was discovered that the asynchronous I/O (aio) subsystem of the Linux
kernel did not properly set permissions on aio memory mappings in some
situations. An attacker could use this to more easily exploit other
vulnerabilities. (CVE-2016-10044)
Baozeng Ding and Andrey Konovalov discovered a race condition in the L2TPv3
IP Encapsulation implementation in the Linux kernel. A local attacker could
use this to cause a denial of service (system crash) or possibly execute
arbitrary code. (CVE-2016-10200)
Andreas Gruenbacher an
OSV
linux-raspi2 vulnerabilities
osv·2016-12-20·CVSS 5.5
CVE-2015-8964 [MEDIUM] linux-raspi2 vulnerabilities
linux-raspi2 vulnerabilities
Tilman Schmidt and Sasha Levin discovered a use-after-free condition in the
TTY implementation in the Linux kernel. A local attacker could use this to
expose sensitive information (kernel memory). (CVE-2015-8964)
It was discovered that the Video For Linux Two (v4l2) implementation in the
Linux kernel did not properly handle multiple planes when processing a
VIDIOC_DQBUF ioctl(). A local attacker could use this to cause a denial of
service (system crash) or possibly execute arbitrary code. (CVE-2016-4568)
CAI Qian discovered that shared bind mounts in a mount namespace
exponentially added entries without restriction to the Linux kernel's mount
table. A local attacker could use this to cause a denial of service (system
crash). (CVE-2016-6213)
Ondrej Kozina di
OSV
CVE-2016-9178: The __get_user_asm_ex macro in arch/x86/include/asm/uaccess
osv·2016-11-28·CVSS 5.5
CVE-2016-9178 [MEDIUM] CVE-2016-9178: The __get_user_asm_ex macro in arch/x86/include/asm/uaccess
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.
OSV
CVE-2016-9644: The __get_user_asm_ex macro in arch/x86/include/asm/uaccess
osv·2016-11-27·CVSS 5.5
CVE-2016-9644 [MEDIUM] CVE-2016-9644: The __get_user_asm_ex macro in arch/x86/include/asm/uaccess
The __get_user_asm_ex macro in arch/x86/include/asm/uaccess.h in the Linux kernel 4.4.22 through 4.4.28 contains extended asm statements that are incompatible with the exception table, which allows local users to obtain root access on non-SMEP platforms via a crafted application. NOTE: this vulnerability exists because of incorrect backporting of the CVE-2016-9178 patch to older kernels.
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2016-9644 kernel: Incorrect fix for CVE-2016-9178 [fedora-all]
bugzilla·2017-01-20·CVSS 5.5
CVE-2016-9644 [MEDIUM] CVE-2016-9644 kernel: Incorrect fix for CVE-2016-9178 [fedora-all]
CVE-2016-9644 kernel: Incorrect fix for CVE-2016-9178 [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of Fedora.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
NOTE: this issue affects multiple supported versions of Fedora. Whi
Bugzilla
CVE-2016-9644 kernel: Incorrect fix for CVE-2016-9178
bugzilla·2016-11-29·CVSS 5.5
CVE-2016-9644 [MEDIUM] CVE-2016-9644 kernel: Incorrect fix for CVE-2016-9178
CVE-2016-9644 kernel: Incorrect fix for CVE-2016-9178
The __get_user_asm_ex macro in arch/x86/include/asm/uaccess.h in the Linux
kernel 4.4.22 through 4.4.28 contains extended asm statements that are
incompatible with the exception table, which allows local users to obtain root
access on non-SMEP platforms via a crafted application. NOTE: this
vulnerability exists because of incorrect backporting of the CVE-2016-9178 patch
to older kernels.
Above refers to a new issue which affected some Linux stable lines, which backported 1c109fabbd51863475cd12ac206bdd249aee35af without also backporting 548acf19234dbda5a52d5a8e7e205af46e9da840.
References:
http://seclists.org/oss-sec/2016/q4/535
https://lwn.net/Articles/705264/
Upstream patches:
https://git.kernel.org/cgit/linux/kernel/git/torvalds
Bugzilla
CVE-2016-9178 kernel: Information leak in get_user_ex function [fedora-all]
bugzilla·2016-11-04·CVSS 5.5
CVE-2016-9178 [MEDIUM] CVE-2016-9178 kernel: Information leak in get_user_ex function [fedora-all]
CVE-2016-9178 kernel: Information leak in get_user_ex function [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of Fedora.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
NOTE: this issue affects multiple supported versions of Fe
Bugzilla
CVE-2016-9178 kernel: Information leak in get_user_ex function
bugzilla·2016-11-04·CVSS 5.5
CVE-2016-9178 [MEDIUM] CVE-2016-9178 kernel: Information leak in get_user_ex function
CVE-2016-9178 kernel: Information leak in get_user_ex function
An information leak was found in the Linux kernel. 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.
References:
http://seclists.org/oss-sec/2016/q4/320
Upstream patch:
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=1c109fabbd51863475cd12ac206bdd249aee35af
Discussion:
Created kernel tracking bugs for this issue:
Affects: fedora-all [bug 1391910]
---
This issue was fixed in 4.7.5 stable updates across all Fedora releases.
---
Statement:
This issue does not affect the Linux
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=1c109fabbd51863475cd12ac206bdd249aee35afhttp://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.7.5http://www.openwall.com/lists/oss-security/2016/11/04/4http://www.securityfocus.com/bid/94144https://bugzilla.redhat.com/show_bug.cgi?id=1391908https://github.com/torvalds/linux/commit/1c109fabbd51863475cd12ac206bdd249aee35afhttp://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=1c109fabbd51863475cd12ac206bdd249aee35afhttp://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.7.5http://www.openwall.com/lists/oss-security/2016/11/04/4http://www.securityfocus.com/bid/94144https://bugzilla.redhat.com/show_bug.cgi?id=1391908https://github.com/torvalds/linux/commit/1c109fabbd51863475cd12ac206bdd249aee35af
2016-11-28
Published