CVE-2016-2547
published 2016-04-27CVE-2016-2547: sound/core/timer.c in the Linux kernel before 4.4.1 employs a locking approach that does not consider slave timer instances, which allows local users to cause…
PriorityP419medium5.1CVSS 3.0
AVLACHPRNUINSUCNINAH
EPSS
0.34%
26.3th percentile
sound/core/timer.c in the Linux kernel before 4.4.1 employs a locking approach that does not consider slave timer instances, which allows local users to cause a denial of service (race condition, use-after-free, and system crash) via a crafted ioctl call.
Affected
7 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 4.4.2-1 (bookworm) | linux 4.4.2-1 (bookworm) |
| linux | linux_kernel | <= 4.4 | — |
| linux | linux_kernel | >= 0 < 4.4.2-1 | 4.4.2-1 |
| linux | linux_kernel | >= 0 < 4.4.2-1 | 4.4.2-1 |
| linux | linux_kernel | >= 0 < 4.4.2-1 | 4.4.2-1 |
| linux | linux_kernel | >= 0 < 4.4.2-1 | 4.4.2-1 |
| linux | linux_kernel | >= 0 < 3.13.0-83.127 | 3.13.0-83.127 |
CVSS provenance
nvdv3.05.1MEDIUMCVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
nvdv2.04.7MEDIUMAV:L/AC:M/Au:N/C:N/I:N/A:C
osv6.2MEDIUM
vendor_ubuntu6.2MEDIUM
vendor_debian5.1MEDIUM
vendor_redhat5.1MEDIUM
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Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2016-05-09·CVSS 6.2
CVE-2013-4312 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the kernel.
It was discovered that the Linux kernel did not properly enforce rlimits
for file descriptors sent over UNIX domain sockets. A local attacker could
use this to cause a denial of service. (CVE-2013-4312)
Ralf Spenneberg discovered that the Aiptek Tablet USB device driver in the
Linux kernel did not properly validate the endpoints reported by the
device. An attacker with physical access could cause a denial of service
(system crash). (CVE-2015-7515)
Ralf Spenneberg discovered that the USB driver for Clie devices in the
Linux kernel did not properly validate the endpoints reported by the
device. An attacker with physical access could cause a denial of service
(system crash). (CVE-2015-7566)
Ral
Ubuntu
Linux kernel (OMAP4) vulnerabilities
vendor_ubuntu·2016-05-09·CVSS 6.2
CVE-2013-4312 [MEDIUM] Linux kernel (OMAP4) vulnerabilities
Title: Linux kernel (OMAP4) vulnerabilities
Summary: Several security issues were fixed in the kernel.
It was discovered that the Linux kernel did not properly enforce rlimits
for file descriptors sent over UNIX domain sockets. A local attacker could
use this to cause a denial of service. (CVE-2013-4312)
Ralf Spenneberg discovered that the Aiptek Tablet USB device driver in the
Linux kernel did not properly validate the endpoints reported by the
device. An attacker with physical access could cause a denial of service
(system crash). (CVE-2015-7515)
Ralf Spenneberg discovered that the USB driver for Clie devices in the
Linux kernel did not properly validate the endpoints reported by the
device. An attacker with physical access could cause a denial of service
(system crash). (CVE-2015-75
Ubuntu
Linux kernel (Raspberry Pi 2) vulnerabilities
vendor_ubuntu·2016-03-16·CVSS 4.6
CVE-2015-7566 [MEDIUM] Linux kernel (Raspberry Pi 2) vulnerabilities
Title: Linux kernel (Raspberry Pi 2) vulnerabilities
Summary: Several security issues were fixed in the kernel.
Ben Hawkes discovered that the Linux netfilter implementation did not
correctly perform validation when handling IPT_SO_SET_REPLACE events. A
local unprivileged attacker could use this to cause a denial of service
(system crash) or possibly execute arbitrary code with administrative
privileges. (CVE-2016-3134)
Ben Hawkes discovered an integer overflow in the Linux netfilter
implementation. On systems running 32 bit kernels, a local unprivileged
attacker could use this to cause a denial of service (system crash) or
possibly execute arbitrary code with administrative privileges.
(CVE-2016-3135)
Ralf Spenneberg discovered that the USB driver for Clie devices in the
Linux kernel
Ubuntu
Linux kernel (Wily HWE) vulnerabilities
vendor_ubuntu·2016-03-14·CVSS 4.6
CVE-2015-7566 [MEDIUM] Linux kernel (Wily HWE) vulnerabilities
Title: Linux kernel (Wily HWE) vulnerabilities
Summary: Several security issues were fixed in the kernel.
Ben Hawkes discovered that the Linux netfilter implementation did not
correctly perform validation when handling IPT_SO_SET_REPLACE events. A
local unprivileged attacker could use this to cause a denial of service
(system crash) or possibly execute arbitrary code with administrative
privileges. (CVE-2016-3134)
Ben Hawkes discovered an integer overflow in the Linux netfilter
implementation. On systems running 32 bit kernels, a local unprivileged
attacker could use this to cause a denial of service (system crash) or
possibly execute arbitrary code with administrative privileges.
(CVE-2016-3135)
Ralf Spenneberg discovered that the USB driver for Clie devices in the
Linux kernel did no
Ubuntu
Linux kernel (Trusty HWE) vulnerabilities
vendor_ubuntu·2016-03-14·CVSS 6.2
CVE-2013-4312 [MEDIUM] Linux kernel (Trusty HWE) vulnerabilities
Title: Linux kernel (Trusty HWE) vulnerabilities
Summary: Several security issues were fixed in the kernel.
Ben Hawkes discovered that the Linux netfilter implementation did not
correctly perform validation when handling IPT_SO_SET_REPLACE events. A
local unprivileged attacker could use this to cause a denial of service
(system crash) or possibly execute arbitrary code with administrative
privileges. (CVE-2016-3134)
It was discovered that the Linux kernel did not properly enforce rlimits
for file descriptors sent over UNIX domain sockets. A local attacker could
use this to cause a denial of service. (CVE-2013-4312)
Ralf Spenneberg discovered that the USB driver for Clie devices in the
Linux kernel did not properly validate the endpoints reported by the
device. An attacker with physical
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2016-03-14·CVSS 4.6
CVE-2015-7566 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the kernel.
Ben Hawkes discovered that the Linux netfilter implementation did not
correctly perform validation when handling IPT_SO_SET_REPLACE events. A
local unprivileged attacker could use this to cause a denial of service
(system crash) or possibly execute arbitrary code with administrative
privileges. (CVE-2016-3134)
Ben Hawkes discovered an integer overflow in the Linux netfilter
implementation. On systems running 32 bit kernels, a local unprivileged
attacker could use this to cause a denial of service (system crash) or
possibly execute arbitrary code with administrative privileges.
(CVE-2016-3135)
Ralf Spenneberg discovered that the USB driver for Clie devices in the
Linux kernel did not properly
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2016-03-14·CVSS 6.2
CVE-2013-4312 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the kernel.
Ben Hawkes discovered that the Linux netfilter implementation did not
correctly perform validation when handling IPT_SO_SET_REPLACE events. A
local unprivileged attacker could use this to cause a denial of service
(system crash) or possibly execute arbitrary code with administrative
privileges. (CVE-2016-3134)
It was discovered that the Linux kernel did not properly enforce rlimits
for file descriptors sent over UNIX domain sockets. A local attacker could
use this to cause a denial of service. (CVE-2013-4312)
Ralf Spenneberg discovered that the USB driver for Clie devices in the
Linux kernel did not properly validate the endpoints reported by the
device. An attacker with physical access could
Ubuntu
Linux kernel (Vivid HWE) vulnerabilities
vendor_ubuntu·2016-03-14·CVSS 6.2
CVE-2013-4312 [MEDIUM] Linux kernel (Vivid HWE) vulnerabilities
Title: Linux kernel (Vivid HWE) vulnerabilities
Summary: Several security issues were fixed in the kernel.
Ben Hawkes discovered that the Linux netfilter implementation did not
correctly perform validation when handling IPT_SO_SET_REPLACE events. A
local unprivileged attacker could use this to cause a denial of service
(system crash) or possibly execute arbitrary code with administrative
privileges. (CVE-2016-3134)
It was discovered that the Linux kernel did not properly enforce rlimits
for file descriptors sent over UNIX domain sockets. A local attacker could
use this to cause a denial of service. (CVE-2013-4312)
Ralf Spenneberg discovered that the USB driver for Clie devices in the
Linux kernel did not properly validate the endpoints reported by the
device. An attacker with physical
Ubuntu
Linux kernel (Utopic HWE) vulnerabilities
vendor_ubuntu·2016-03-14·CVSS 6.2
CVE-2013-4312 [MEDIUM] Linux kernel (Utopic HWE) vulnerabilities
Title: Linux kernel (Utopic HWE) vulnerabilities
Summary: Several security issues were fixed in the kernel.
Ben Hawkes discovered that the Linux netfilter implementation did not
correctly perform validation when handling IPT_SO_SET_REPLACE events. A
local unprivileged attacker could use this to cause a denial of service
(system crash) or possibly execute arbitrary code with administrative
privileges. (CVE-2016-3134)
It was discovered that the Linux kernel did not properly enforce rlimits
for file descriptors sent over UNIX domain sockets. A local attacker could
use this to cause a denial of service. (CVE-2013-4312)
It was discovered that a race condition existed when handling heartbeat-
timeout events in the SCTP implementation of the Linux kernel. A remote
attacker could use this to c
Red Hat
kernel: sound: use-after-free in snd_timer_user_ioctl
vendor_redhat·2016-01-19·CVSS 5.1
CVE-2016-2547 [MEDIUM] CWE-416 kernel: sound: use-after-free in snd_timer_user_ioctl
kernel: sound: use-after-free in snd_timer_user_ioctl
sound/core/timer.c in the Linux kernel before 4.4.1 employs a locking approach that does not consider slave timer instances, which allows local users to cause a denial of service (race condition, use-after-free, and system crash) via a crafted ioctl call.
Statement: This issue affects the Linux kernel packages as shipped with Red Hat Enterprise Linux 5, 6. This has been rated as having Moderate security impact and is not currently planned to be addressed in future updates. For additional information, refer to the Red Hat Enterprise Linux Life Cycle: https://access.redhat.com/support/policy/updates/errata/.
This issue does not affect the Linux kernel packages as shipped with Red Hat Enterprise Linux 7 and MRG-2, as the flaw was already
Red Hat
kernel: sound: linked lists of slave instances not unlinked immediately
vendor_redhat·2016-01-19·CVSS 5.1
CVE-2016-2548 [MEDIUM] CWE-416 kernel: sound: linked lists of slave instances not unlinked immediately
kernel: sound: linked lists of slave instances not unlinked immediately
sound/core/timer.c in the Linux kernel before 4.4.1 retains certain linked lists after a close or stop action, which allows local users to cause a denial of service (system crash) via a crafted ioctl call, related to the (1) snd_timer_close and (2) _snd_timer_stop functions.
Statement: This flaw was found to be a duplicate of CVE-2016-2547. Please see https://access.redhat.com/security/cve/CVE-2016-2547 for information about affected products and security errata.
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: r
Debian
CVE-2016-2547: linux - sound/core/timer.c in the Linux kernel before 4.4.1 employs a locking approach t...
vendor_debian·2016·CVSS 5.1
CVE-2016-2547 [MEDIUM] CVE-2016-2547: linux - sound/core/timer.c in the Linux kernel before 4.4.1 employs a locking approach t...
sound/core/timer.c in the Linux kernel before 4.4.1 employs a locking approach that does not consider slave timer instances, which allows local users to cause a denial of service (race condition, use-after-free, and system crash) via a crafted ioctl call.
Scope: local
bookworm: resolved (fixed in 4.4.2-1)
bullseye: resolved (fixed in 4.4.2-1)
forky: resolved (fixed in 4.4.2-1)
sid: resolved (fixed in 4.4.2-1)
trixie: resolved (fixed in 4.4.2-1)
GHSA
GHSA-6r2j-xhpv-h8w5: sound/core/timer
ghsa_unreviewed·2022-05-17
CVE-2016-2547 [MEDIUM] CWE-362 GHSA-6r2j-xhpv-h8w5: sound/core/timer
sound/core/timer.c in the Linux kernel before 4.4.1 employs a locking approach that does not consider slave timer instances, which allows local users to cause a denial of service (race condition, use-after-free, and system crash) via a crafted ioctl call.
OSV
CVE-2016-2547: sound/core/timer
osv·2016-04-27·CVSS 5.1
CVE-2016-2547 [MEDIUM] CVE-2016-2547: sound/core/timer
sound/core/timer.c in the Linux kernel before 4.4.1 employs a locking approach that does not consider slave timer instances, which allows local users to cause a denial of service (race condition, use-after-free, and system crash) via a crafted ioctl call.
OSV
linux-lts-wily vulnerabilities
osv·2016-03-14·CVSS 4.6
CVE-2016-3134 [MEDIUM] linux-lts-wily vulnerabilities
linux-lts-wily vulnerabilities
Ben Hawkes discovered that the Linux netfilter implementation did not
correctly perform validation when handling IPT_SO_SET_REPLACE events. A
local unprivileged attacker could use this to cause a denial of service
(system crash) or possibly execute arbitrary code with administrative
privileges. (CVE-2016-3134)
Ben Hawkes discovered an integer overflow in the Linux netfilter
implementation. On systems running 32 bit kernels, a local unprivileged
attacker could use this to cause a denial of service (system crash) or
possibly execute arbitrary code with administrative privileges.
(CVE-2016-3135)
Ralf Spenneberg discovered that the USB driver for Clie devices in the
Linux kernel did not properly validate the endpoints reported by the
device. An attacker with p
OSV
linux-lts-vivid vulnerabilities
osv·2016-03-14·CVSS 6.2
CVE-2016-3134 [MEDIUM] linux-lts-vivid vulnerabilities
linux-lts-vivid vulnerabilities
Ben Hawkes discovered that the Linux netfilter implementation did not
correctly perform validation when handling IPT_SO_SET_REPLACE events. A
local unprivileged attacker could use this to cause a denial of service
(system crash) or possibly execute arbitrary code with administrative
privileges. (CVE-2016-3134)
It was discovered that the Linux kernel did not properly enforce rlimits
for file descriptors sent over UNIX domain sockets. A local attacker could
use this to cause a denial of service. (CVE-2013-4312)
Ralf Spenneberg discovered that the USB driver for Clie devices in the
Linux kernel did not properly validate the endpoints reported by the
device. An attacker with physical access could cause a denial of service
(system crash). (CVE-2015-7566)
Ralf
OSV
linux-lts-utopic vulnerabilities
osv·2016-03-14·CVSS 6.2
CVE-2016-3134 [MEDIUM] linux-lts-utopic vulnerabilities
linux-lts-utopic vulnerabilities
Ben Hawkes discovered that the Linux netfilter implementation did not
correctly perform validation when handling IPT_SO_SET_REPLACE events. A
local unprivileged attacker could use this to cause a denial of service
(system crash) or possibly execute arbitrary code with administrative
privileges. (CVE-2016-3134)
It was discovered that the Linux kernel did not properly enforce rlimits
for file descriptors sent over UNIX domain sockets. A local attacker could
use this to cause a denial of service. (CVE-2013-4312)
It was discovered that a race condition existed when handling heartbeat-
timeout events in the SCTP implementation of the Linux kernel. A remote
attacker could use this to cause a denial of service. (CVE-2015-8767)
Andy Lutomirski discovered a race
OSV
linux vulnerabilities
osv·2016-03-14·CVSS 6.2
CVE-2016-3134 [MEDIUM] linux vulnerabilities
linux vulnerabilities
Ben Hawkes discovered that the Linux netfilter implementation did not
correctly perform validation when handling IPT_SO_SET_REPLACE events. A
local unprivileged attacker could use this to cause a denial of service
(system crash) or possibly execute arbitrary code with administrative
privileges. (CVE-2016-3134)
It was discovered that the Linux kernel did not properly enforce rlimits
for file descriptors sent over UNIX domain sockets. A local attacker could
use this to cause a denial of service. (CVE-2013-4312)
Ralf Spenneberg discovered that the USB driver for Clie devices in the
Linux kernel did not properly validate the endpoints reported by the
device. An attacker with physical access could cause a denial of service
(system crash). (CVE-2015-7566)
Ralf Spenneber
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2016-2548 kernel: sound: linked lists of slave instances not unlinked immediately
bugzilla·2016-02-24·CVSS 5.1
CVE-2016-2548 [MEDIUM] CVE-2016-2548 kernel: sound: linked lists of slave instances not unlinked immediately
CVE-2016-2548 kernel: sound: linked lists of slave instances not unlinked immediately
Some linked lists (active_list and ack_list) of slave instances
aren't unlinked immediately at stopping or closing, and this may lead
to unexpected accesses.
Upstream patch:
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b5a663aa426f4884c71cd8580adae73f33570f0d
External references:
http://seclists.org/oss-sec/2016/q1/133
Discussion:
This is an identical fix to bug 1311566
This was fixed in 4.3.5 with:
commit ea7f3d59628930dc29482a292e2a55c81cac52a4
Author: Takashi Iwai
Date: Thu Jan 14 16:30:58 2016 +0100
ALSA: timer: Harden slave timer list handling
commit b5a663aa426f4884c71cd8580adae73f33570f0d upstream.
and in 4.4.1 with:
commit 8eff3aa0a9bbb593dce0ec0344ec1961
Bugzilla
CVE-2016-2547 kernel: sound: use-after-free in snd_timer_user_ioctl
bugzilla·2016-02-24·CVSS 5.1
CVE-2016-2547 [MEDIUM] CVE-2016-2547 kernel: sound: use-after-free in snd_timer_user_ioctl
CVE-2016-2547 kernel: sound: use-after-free in snd_timer_user_ioctl
A slave timer instance might be still accessible in a racy way while operating the master instance as it lacks of locking. Since the master operation is mostly protected with timer->lock, we should cope with it while changing the slave instance, too.
Upstream patch:
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b5a663aa426f4884c71cd8580adae73f33570f0d
External references:
http://marc.info/?l=linux-kernel&m=145269654327048
https://gist.githubusercontent.com/dvyukov/e833610757b098956b50/raw/d819cd13b466e4adbe3dd825ee481e4512e77633/gistfile1.txt
CVE-ID request and assignment:
http://seclists.org/oss-sec/2016/q1/133
http://seclists.org/oss-sec/2016/q1/410
Discussion:
This was fixed in 4.3.
Bugzilla
CVE-2016-2543 CVE-2016-2544 CVE-2016-2545 CVE-2016-2546 CVE-2016-2547 CVE-2016-2548 CVE-2016-2549 kernel: sound: multiple security vulnerabilities [fedora-all]
bugzilla·2016-02-24·CVSS 6.2
CVE-2016-2543 [MEDIUM] CVE-2016-2543 CVE-2016-2544 CVE-2016-2545 CVE-2016-2546 CVE-2016-2547 CVE-2016-2548 CVE-2016-2549 kernel: sound: multiple security vulnerabilities [fedora-all]
CVE-2016-2543 CVE-2016-2544 CVE-2016-2545 CVE-2016-2546 CVE-2016-2547 CVE-2016-2548 CVE-2016-2549 kernel: sound: multiple security vulnerabilities [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 th
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b5a663aa426f4884c71cd8580adae73f33570f0dhttp://lists.opensuse.org/opensuse-security-announce/2016-03/msg00094.htmlhttp://lists.opensuse.org/opensuse-security-announce/2016-04/msg00045.htmlhttp://lists.opensuse.org/opensuse-security-announce/2016-08/msg00038.htmlhttp://www.debian.org/security/2016/dsa-3503http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.1http://www.openwall.com/lists/oss-security/2016/01/19/1http://www.securityfocus.com/bid/83378http://www.securitytracker.com/id/1035298http://www.ubuntu.com/usn/USN-2929-1http://www.ubuntu.com/usn/USN-2929-2http://www.ubuntu.com/usn/USN-2930-1http://www.ubuntu.com/usn/USN-2930-2http://www.ubuntu.com/usn/USN-2930-3http://www.ubuntu.com/usn/USN-2931-1http://www.ubuntu.com/usn/USN-2932-1http://www.ubuntu.com/usn/USN-2967-1http://www.ubuntu.com/usn/USN-2967-2https://bugzilla.redhat.com/show_bug.cgi?id=1311566https://github.com/torvalds/linux/commit/b5a663aa426f4884c71cd8580adae73f33570f0dhttp://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b5a663aa426f4884c71cd8580adae73f33570f0dhttp://lists.opensuse.org/opensuse-security-announce/2016-03/msg00094.htmlhttp://lists.opensuse.org/opensuse-security-announce/2016-04/msg00045.htmlhttp://lists.opensuse.org/opensuse-security-announce/2016-08/msg00038.htmlhttp://www.debian.org/security/2016/dsa-3503http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.1http://www.openwall.com/lists/oss-security/2016/01/19/1http://www.securityfocus.com/bid/83378http://www.securitytracker.com/id/1035298http://www.ubuntu.com/usn/USN-2929-1http://www.ubuntu.com/usn/USN-2929-2http://www.ubuntu.com/usn/USN-2930-1http://www.ubuntu.com/usn/USN-2930-2http://www.ubuntu.com/usn/USN-2930-3http://www.ubuntu.com/usn/USN-2931-1http://www.ubuntu.com/usn/USN-2932-1http://www.ubuntu.com/usn/USN-2967-1http://www.ubuntu.com/usn/USN-2967-2https://bugzilla.redhat.com/show_bug.cgi?id=1311566https://github.com/torvalds/linux/commit/b5a663aa426f4884c71cd8580adae73f33570f0d
2016-04-27
Published