CVE-2014-9419
published 2014-12-26CVE-2014-9419: The __switch_to function in arch/x86/kernel/process_64.c in the Linux kernel through 3.18.1 does not ensure that Thread Local Storage (TLS) descriptors are…
PriorityP48low2.1CVSS 2.0
AVLACLAuNCPINAN
EPSS
0.44%
36.2th percentile
The __switch_to function in arch/x86/kernel/process_64.c in the Linux kernel through 3.18.1 does not ensure that Thread Local Storage (TLS) descriptors are loaded before proceeding with other steps, which makes it easier for local users to bypass the ASLR protection mechanism via a crafted application that reads a TLS base address.
Affected
9 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 3.16.7-ckt4-1 (bookworm) | linux 3.16.7-ckt4-1 (bookworm) |
| linux | linux_kernel | <= 3.18.1 | — |
| linux | linux_kernel | >= 0 < 3.16.7-ckt4-1 | 3.16.7-ckt4-1 |
| linux | linux_kernel | >= 0 < 3.16.7-ckt4-1 | 3.16.7-ckt4-1 |
| linux | linux_kernel | >= 0 < 3.16.7-ckt4-1 | 3.16.7-ckt4-1 |
| linux | linux_kernel | >= 0 < 3.16.7-ckt4-1 | 3.16.7-ckt4-1 |
| linux | linux_kernel | >= 0 < 3.13.0-46.77 | 3.13.0-46.77 |
| linux | linux_kernel | >= 0 < 3.13.0-46.75 | 3.13.0-46.75 |
| linux | linux_kernel | >= 0 < 3.13.0-46.76 | 3.13.0-46.76 |
CVSS provenance
nvdv2.02.1LOWAV:L/AC:L/Au:N/C:P/I:N/A:N
osv2.1LOW
vendor_ubuntu7.2HIGH
vendor_debian2.1LOW
vendor_redhat2.1LOW
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Ubuntu
Linux kernel (OMAP4) vulnerabilities
vendor_ubuntu·2015-03-24·CVSS 7.2
CVE-2014-7822 [HIGH] Linux kernel (OMAP4) vulnerabilities
Title: Linux kernel (OMAP4) vulnerabilities
Summary: Several security issues were fixed in the kernel.
The Linux kernel's splice system call did not correctly validate its
parameters. A local, unprivileged user could exploit this flaw to cause a
denial of service (system crash). (CVE-2014-7822)
A flaw was discovered in how Thread Local Storage (TLS) is handled by the
task switching function in the Linux kernel for x86_64 based machines. A
local user could exploit this flaw to bypass the Address Space Layout
Radomization (ASLR) protection mechanism. (CVE-2014-9419)
Dmitry Chernenkov discovered a buffer overflow in eCryptfs' encrypted file
name decoding. A local unprivileged user could exploit this flaw to cause a
denial of service (system crash) or potentially gain administrative
privil
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2015-03-24·CVSS 7.2
CVE-2014-7822 [HIGH] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the kernel.
The Linux kernel's splice system call did not correctly validate its
parameters. A local, unprivileged user could exploit this flaw to cause a
denial of service (system crash). (CVE-2014-7822)
A flaw was discovered in how Thread Local Storage (TLS) is handled by the
task switching function in the Linux kernel for x86_64 based machines. A
local user could exploit this flaw to bypass the Address Space Layout
Radomization (ASLR) protection mechanism. (CVE-2014-9419)
Dmitry Chernenkov discovered a buffer overflow in eCryptfs' encrypted file
name decoding. A local unprivileged user could exploit this flaw to cause a
denial of service (system crash) or potentially gain administrative
privileges. (C
Ubuntu
Linux kernel (Trusty HWE) vulnerabilities regression
vendor_ubuntu·2015-03-04·CVSS 2.1
[LOW] Linux kernel (Trusty HWE) vulnerabilities regression
Title: Linux kernel (Trusty HWE) vulnerabilities regression
Summary: USN-2515-1 introduced a regression in the Linux kernel.
USN-2515-1 fixed vulnerabilities in the Linux kernel. There was an unrelated
regression in the use of the virtual counter (CNTVCT) on arm64 architectures.
This update fixes the problem.
We apologize for the inconvenience.
Original advisory details:
A flaw was discovered in the Kernel Virtual Machine's (KVM) emulation of
the SYSTENTER instruction when the guest OS does not initialize the
SYSENTER MSRs. A guest OS user could exploit this flaw to cause a denial of
service of the guest OS (crash) or potentially gain privileges on the guest
OS. (CVE-2015-0239)
Andy Lutomirski discovered an information leak in the Linux kernel's Thread
Local Storage (TLS) implementat
Ubuntu
Linux kernel vulnerabilities regression
vendor_ubuntu·2015-03-04·CVSS 2.1
[LOW] Linux kernel vulnerabilities regression
Title: Linux kernel vulnerabilities regression
Summary: USN-2516-1 introduced a regression in the Linux kernel.
USN-2516-1 fixed vulnerabilities in the Linux kernel, and the fix in
USN-2516-2 was incomplete. There was an unrelated regression in the use of
the virtual counter (CNTVCT) on arm64 architectures.
This update fixes the problem.
We apologize for the inconvenience.
Original advisory details:
A flaw was discovered in the Kernel Virtual Machine's (KVM) emulation of
the SYSTENTER instruction when the guest OS does not initialize the
SYSENTER MSRs. A guest OS user could exploit this flaw to cause a denial of
service of the guest OS (crash) or potentially gain privileges on the guest
OS. (CVE-2015-0239)
Andy Lutomirski discovered an information leak in the Linux kernel's Thread
L
Ubuntu
Linux kernel vulnerability regression
vendor_ubuntu·2015-02-28·CVSS 2.1
[LOW] Linux kernel vulnerability regression
Title: Linux kernel vulnerability regression
Summary: USN-2516-1 introduced a regression in the Linux kernel.
USN-2516-1 fixed vulnerabilities in the Linux kernel. There was an unrelated
regression in the use of the virtual counter (CNTVCT) on arm64 architectures.
This update fixes the problem.
We apologize for the inconvenience.
Original advisory details:
A flaw was discovered in the Kernel Virtual Machine's (KVM) emulation of
the SYSTENTER instruction when the guest OS does not initialize the
SYSENTER MSRs. A guest OS user could exploit this flaw to cause a denial of
service of the guest OS (crash) or potentially gain privileges on the guest
OS. (CVE-2015-0239)
Andy Lutomirski discovered an information leak in the Linux kernel's Thread
Local Storage (TLS) implementation allowing us
Ubuntu
Linux kernel (Trusty HWE) vulnerabilities
vendor_ubuntu·2015-02-26·CVSS 2.1
CVE-2014-8133 [LOW] Linux kernel (Trusty HWE) vulnerabilities
Title: Linux kernel (Trusty HWE) vulnerabilities
Summary: Several security issues were fixed in the kernel.
A flaw was discovered in the Kernel Virtual Machine's (KVM) emulation of
the SYSTENTER instruction when the guest OS does not initialize the
SYSENTER MSRs. A guest OS user could exploit this flaw to cause a denial of
service of the guest OS (crash) or potentially gain privileges on the guest
OS. (CVE-2015-0239)
Andy Lutomirski discovered an information leak in the Linux kernel's Thread
Local Storage (TLS) implementation allowing users to bypass the espfix to
obtain information that could be used to bypass the Address Space Layout
Randomization (ASLR) protection mechanism. A local user could exploit this
flaw to obtain potentially sensitive information from kernel memory.
(CVE-2014
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2015-02-26·CVSS 2.1
CVE-2014-8133 [LOW] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the kernel.
A flaw was discovered in the Kernel Virtual Machine's (KVM) emulation of
the SYSTENTER instruction when the guest OS does not initialize the
SYSENTER MSRs. A guest OS user could exploit this flaw to cause a denial of
service of the guest OS (crash) or potentially gain privileges on the guest
OS. (CVE-2015-0239)
Andy Lutomirski discovered an information leak in the Linux kernel's Thread
Local Storage (TLS) implementation allowing users to bypass the espfix to
obtain information that could be used to bypass the Address Space Layout
Randomization (ASLR) protection mechanism. A local user could exploit this
flaw to obtain potentially sensitive information from kernel memory.
(CVE-2014-8133)
A res
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2015-02-26·CVSS 2.1
CVE-2014-8133 [LOW] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the kernel.
A flaw was discovered in the Kernel Virtual Machine's (KVM) emulation of
the SYSTENTER instruction when the guest OS does not initialize the
SYSENTER MSRs. A guest OS user could exploit this flaw to cause a denial of
service of the guest OS (crash) or potentially gain privileges on the guest
OS. (CVE-2015-0239)
Andy Lutomirski discovered an information leak in the Linux kernel's Thread
Local Storage (TLS) implementation allowing users to bypass the espfix to
obtain information that could be used to bypass the Address Space Layout
Randomization (ASLR) protection mechanism. A local user could exploit this
flaw to obtain potentially sensitive information from kernel memory.
(CVE-2014-8133)
A res
Ubuntu
Linux kernel (Utopic HWE) vulnerabilities
vendor_ubuntu·2015-02-26·CVSS 2.1
CVE-2014-8133 [LOW] Linux kernel (Utopic HWE) vulnerabilities
Title: Linux kernel (Utopic HWE) vulnerabilities
Summary: Several security issues were fixed in the kernel.
A flaw was discovered in the Kernel Virtual Machine's (KVM) emulation of
the SYSTENTER instruction when the guest OS does not initialize the
SYSENTER MSRs. A guest OS user could exploit this flaw to cause a denial of
service of the guest OS (crash) or potentially gain privileges on the guest
OS. (CVE-2015-0239)
Andy Lutomirski discovered an information leak in the Linux kernel's Thread
Local Storage (TLS) implementation allowing users to bypass the espfix to
obtain information that could be used to bypass the Address Space Layout
Randomization (ASLR) protection mechanism. A local user could exploit this
flaw to obtain potentially sensitive information from kernel memory.
(CVE-2014
Red Hat
kernel: partial ASLR bypass through TLS base addresses leak
vendor_redhat·2014-12-08·CVSS 2.1
CVE-2014-9419 [LOW] CWE-200 kernel: partial ASLR bypass through TLS base addresses leak
kernel: partial ASLR bypass through TLS base addresses leak
The __switch_to function in arch/x86/kernel/process_64.c in the Linux kernel through 3.18.1 does not ensure that Thread Local Storage (TLS) descriptors are loaded before proceeding with other steps, which makes it easier for local users to bypass the ASLR protection mechanism via a crafted application that reads a TLS base address.
An information leak flaw was found in the way the Linux kernel changed certain segment registers and thread-local storage (TLS) during a context switch. A local, unprivileged user could use this flaw to leak the user space TLS base address of an arbitrary process.
Statement: This issue affects the versions of the Linux kernel as shipped with Red Hat Enterprise Linux 5, 6, 7 and Red Hat Enterprise MRG
Debian
CVE-2014-9419: linux - The __switch_to function in arch/x86/kernel/process_64.c in the Linux kernel thr...
vendor_debian·2014·CVSS 2.1
CVE-2014-9419 [LOW] CVE-2014-9419: linux - The __switch_to function in arch/x86/kernel/process_64.c in the Linux kernel thr...
The __switch_to function in arch/x86/kernel/process_64.c in the Linux kernel through 3.18.1 does not ensure that Thread Local Storage (TLS) descriptors are loaded before proceeding with other steps, which makes it easier for local users to bypass the ASLR protection mechanism via a crafted application that reads a TLS base address.
Scope: local
bookworm: resolved (fixed in 3.16.7-ckt4-1)
bullseye: resolved (fixed in 3.16.7-ckt4-1)
forky: resolved (fixed in 3.16.7-ckt4-1)
sid: resolved (fixed in 3.16.7-ckt4-1)
trixie: resolved (fixed in 3.16.7-ckt4-1)
GHSA
GHSA-r6v6-qfmc-3r3v: The __switch_to function in arch/x86/kernel/process_64
ghsa_unreviewed·2022-05-14
CVE-2014-9419 [LOW] CWE-200 GHSA-r6v6-qfmc-3r3v: The __switch_to function in arch/x86/kernel/process_64
The __switch_to function in arch/x86/kernel/process_64.c in the Linux kernel through 3.18.1 does not ensure that Thread Local Storage (TLS) descriptors are loaded before proceeding with other steps, which makes it easier for local users to bypass the ASLR protection mechanism via a crafted application that reads a TLS base address.
OSV
linux vulnerabilities
osv·2015-03-04·CVSS 2.1
[LOW] linux vulnerabilities
linux vulnerabilities
USN-2516-1 fixed vulnerabilities in the Linux kernel, and the fix in
USN-2516-2 was incomplete. There was an unrelated regression in the use of
the virtual counter (CNTVCT) on arm64 architectures.
This update fixes the problem.
We apologize for the inconvenience.
Original advisory details:
A flaw was discovered in the Kernel Virtual Machine's (KVM) emulation of
the SYSTENTER instruction when the guest OS does not initialize the
SYSENTER MSRs. A guest OS user could exploit this flaw to cause a denial of
service of the guest OS (crash) or potentially gain privileges on the guest
OS. (CVE-2015-0239)
Andy Lutomirski discovered an information leak in the Linux kernel's Thread
Local Storage (TLS) implementation allowing users to bypass the espfix to
obtain information
OSV
linux vulnerability
osv·2015-02-28·CVSS 2.1
[LOW] linux vulnerability
linux vulnerability
USN-2516-1 fixed vulnerabilities in the Linux kernel. There was an unrelated
regression in the use of the virtual counter (CNTVCT) on arm64 architectures.
This update fixes the problem.
We apologize for the inconvenience.
Original advisory details:
A flaw was discovered in the Kernel Virtual Machine's (KVM) emulation of
the SYSTENTER instruction when the guest OS does not initialize the
SYSENTER MSRs. A guest OS user could exploit this flaw to cause a denial of
service of the guest OS (crash) or potentially gain privileges on the guest
OS. (CVE-2015-0239)
Andy Lutomirski discovered an information leak in the Linux kernel's Thread
Local Storage (TLS) implementation allowing users to bypass the espfix to
obtain information that could be used to bypass the Address Spa
OSV
linux vulnerabilities
osv·2015-02-26·CVSS 2.1
CVE-2015-0239 [LOW] linux vulnerabilities
linux vulnerabilities
A flaw was discovered in the Kernel Virtual Machine's (KVM) emulation of
the SYSTENTER instruction when the guest OS does not initialize the
SYSENTER MSRs. A guest OS user could exploit this flaw to cause a denial of
service of the guest OS (crash) or potentially gain privileges on the guest
OS. (CVE-2015-0239)
Andy Lutomirski discovered an information leak in the Linux kernel's Thread
Local Storage (TLS) implementation allowing users to bypass the espfix to
obtain information that could be used to bypass the Address Space Layout
Randomization (ASLR) protection mechanism. A local user could exploit this
flaw to obtain potentially sensitive information from kernel memory.
(CVE-2014-8133)
A restriction bypass was discovered in iptables when conntrack rules are
specif
OSV
linux-lts-utopic vulnerabilities
osv·2015-02-26·CVSS 2.1
CVE-2015-0239 [LOW] linux-lts-utopic vulnerabilities
linux-lts-utopic vulnerabilities
A flaw was discovered in the Kernel Virtual Machine's (KVM) emulation of
the SYSTENTER instruction when the guest OS does not initialize the
SYSENTER MSRs. A guest OS user could exploit this flaw to cause a denial of
service of the guest OS (crash) or potentially gain privileges on the guest
OS. (CVE-2015-0239)
Andy Lutomirski discovered an information leak in the Linux kernel's Thread
Local Storage (TLS) implementation allowing users to bypass the espfix to
obtain information that could be used to bypass the Address Space Layout
Randomization (ASLR) protection mechanism. A local user could exploit this
flaw to obtain potentially sensitive information from kernel memory.
(CVE-2014-8133)
A restriction bypass was discovered in iptables when conntrack rules
OSV
CVE-2014-9419: The __switch_to function in arch/x86/kernel/process_64
osv·2014-12-26·CVSS 2.1
CVE-2014-9419 [LOW] CVE-2014-9419: The __switch_to function in arch/x86/kernel/process_64
The __switch_to function in arch/x86/kernel/process_64.c in the Linux kernel through 3.18.1 does not ensure that Thread Local Storage (TLS) descriptors are loaded before proceeding with other steps, which makes it easier for local users to bypass the ASLR protection mechanism via a crafted application that reads a TLS base address.
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2014-9419 kernel: partial ASLR bypass through TLS base addresses leak
bugzilla·2014-12-25·CVSS 2.1
CVE-2014-9419 [LOW] CVE-2014-9419 kernel: partial ASLR bypass through TLS base addresses leak
CVE-2014-9419 kernel: partial ASLR bypass through TLS base addresses leak
It was found that the Linux kernel is vulnerable to an information leakage flaw in the way certain segment registers and TLS are changed during context switch.
An unprivileged user/process could use this flaw to leak other process's user space TLS base address.
Upstream fix:
-> https://git.kernel.org/linus/f647d7c155f069c1a068030255c300663516420e
Reference:
-> http://www.openwall.com/lists/oss-security/2014/12/18/17
Discussion:
Created kernel tracking bugs for this issue:
Affects: fedora-all [bug 1177263]
---
Statement:
This issue affects the versions of the Linux kernel as shipped with Red Hat Enterprise Linux 5, 6, 7 and Red Hat Enterprise MRG 2. Future kernel updates for Red Hat Enterprise Linux 7 may ad
Bugzilla
CVE-2014-9419 kernel: partial ASLR bypass through TLS base addresses leak [fedora-all]
bugzilla·2014-12-25·CVSS 2.1
CVE-2014-9419 [LOW] CVE-2014-9419 kernel: partial ASLR bypass through TLS base addresses leak [fedora-all]
CVE-2014-9419 kernel: partial ASLR bypass through TLS base addresses leak [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 ver
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=f647d7c155f069c1a068030255c300663516420ehttp://lists.fedoraproject.org/pipermail/package-announce/2015-January/147864.htmlhttp://lists.fedoraproject.org/pipermail/package-announce/2015-January/147973.htmlhttp://lists.opensuse.org/opensuse-security-announce/2015-03/msg00020.htmlhttp://lists.opensuse.org/opensuse-security-announce/2015-04/msg00009.htmlhttp://lists.opensuse.org/opensuse-security-announce/2015-04/msg00015.htmlhttp://rhn.redhat.com/errata/RHSA-2015-1081.htmlhttp://www.debian.org/security/2015/dsa-3128http://www.mandriva.com/security/advisories?name=MDVSA-2015:058http://www.openwall.com/lists/oss-security/2014/12/25/1http://www.securityfocus.com/bid/71794http://www.ubuntu.com/usn/USN-2515-1http://www.ubuntu.com/usn/USN-2516-1http://www.ubuntu.com/usn/USN-2517-1http://www.ubuntu.com/usn/USN-2518-1http://www.ubuntu.com/usn/USN-2541-1http://www.ubuntu.com/usn/USN-2542-1https://bugzilla.redhat.com/show_bug.cgi?id=1177260https://github.com/torvalds/linux/commit/f647d7c155f069c1a068030255c300663516420ehttp://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=f647d7c155f069c1a068030255c300663516420ehttp://lists.fedoraproject.org/pipermail/package-announce/2015-January/147864.htmlhttp://lists.fedoraproject.org/pipermail/package-announce/2015-January/147973.htmlhttp://lists.opensuse.org/opensuse-security-announce/2015-03/msg00020.htmlhttp://lists.opensuse.org/opensuse-security-announce/2015-04/msg00009.htmlhttp://lists.opensuse.org/opensuse-security-announce/2015-04/msg00015.htmlhttp://rhn.redhat.com/errata/RHSA-2015-1081.htmlhttp://www.debian.org/security/2015/dsa-3128http://www.mandriva.com/security/advisories?name=MDVSA-2015:058http://www.openwall.com/lists/oss-security/2014/12/25/1http://www.securityfocus.com/bid/71794http://www.ubuntu.com/usn/USN-2515-1http://www.ubuntu.com/usn/USN-2516-1http://www.ubuntu.com/usn/USN-2517-1http://www.ubuntu.com/usn/USN-2518-1http://www.ubuntu.com/usn/USN-2541-1http://www.ubuntu.com/usn/USN-2542-1https://bugzilla.redhat.com/show_bug.cgi?id=1177260https://github.com/torvalds/linux/commit/f647d7c155f069c1a068030255c300663516420e
2014-12-26
Published