CVE-2014-8160
published 2015-03-02CVE-2014-8160: net/netfilter/nf_conntrack_proto_generic.c in the Linux kernel before 3.18 generates incorrect conntrack entries during handling of certain iptables rule sets…
PriorityP336medium5CVSS 2.0
AVNACLAuNCNIPAN
EPSS
5.49%
91.9th percentile
net/netfilter/nf_conntrack_proto_generic.c in the Linux kernel before 3.18 generates incorrect conntrack entries during handling of certain iptables rule sets for the SCTP, DCCP, GRE, and UDP-Lite protocols, which allows remote attackers to bypass intended access restrictions via packets with disallowed port numbers.
Affected
42 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| debian | debian_linux | — | — |
| debian | debian_linux | — | — |
| debian | linux | < linux 3.16.7-ckt4-1 (bookworm) | linux 3.16.7-ckt4-1 (bookworm) |
| linux | linux_kernel | < 3.18 | 3.18 |
| 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 |
| opensuse | opensuse | — | — |
| redhat | enterprise_linux_desktop | — | — |
| redhat | enterprise_linux_desktop | — | — |
| redhat | enterprise_linux_server | — | — |
| redhat | enterprise_linux_server | — | — |
| redhat | enterprise_linux_server_aus | — | — |
| redhat | enterprise_linux_server_aus | — | — |
| redhat | enterprise_linux_server_aus | — | — |
| redhat | enterprise_linux_server_aus | — | — |
| redhat | enterprise_linux_server_eus | — | — |
| redhat | enterprise_linux_server_eus | — | — |
CVSS provenance
nvdv2.05.0MEDIUMAV:N/AC:L/Au:N/C:N/I:P/A:N
osv5.0MEDIUM
vendor_debian5.0MEDIUM
vendor_redhat5.0MEDIUM
vendor_ubuntu2.1LOW
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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 (OMAP4) vulnerabilities
vendor_ubuntu·2015-02-26·CVSS 2.1
CVE-2013-7421 [LOW] Linux kernel (OMAP4) vulnerabilities
Title: Linux kernel (OMAP4) 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)
A flaw was discovered in the automatic loading of modules in the crypto
subsystem of the Linux kernel. A local user could exploit this flaw to load
installed kernel modules, increasing the attack surface and potentially
using this to gain administrative privileges. (CVE-2013-7421)
Andy Lutomirski discovered a flaw in how the Linux kernel handles
pivot_root when used with a chro
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
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2015-02-26·CVSS 2.1
CVE-2013-7421 [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)
A flaw was discovered in the automatic loading of modules in the crypto
subsystem of the Linux kernel. A local user could exploit this flaw to load
installed kernel modules, increasing the attack surface and potentially
using this to gain administrative privileges. (CVE-2013-7421)
Andy Lutomirski discovered a flaw in how the Linux kernel handles
pivot_root when used with a chroot direc
Red Hat
kernel: iptables restriction bypass if a protocol handler kernel module not loaded
vendor_redhat·2014-09-25·CVSS 5.0
CVE-2014-8160 [MEDIUM] kernel: iptables restriction bypass if a protocol handler kernel module not loaded
kernel: iptables restriction bypass if a protocol handler kernel module not loaded
net/netfilter/nf_conntrack_proto_generic.c in the Linux kernel before 3.18 generates incorrect conntrack entries during handling of certain iptables rule sets for the SCTP, DCCP, GRE, and UDP-Lite protocols, which allows remote attackers to bypass intended access restrictions via packets with disallowed port numbers.
A flaw was found in the way the Linux kernel's netfilter subsystem handled generic protocol tracking. As demonstrated in the Stream Control Transmission Protocol (SCTP) case, a remote attacker could use this flaw to bypass intended iptables rule restrictions when the associated connection tracking module was not loaded on the system.
Package: kernel (Red Hat Enterprise Linux 5) - Under invest
Debian
CVE-2014-8160: linux - net/netfilter/nf_conntrack_proto_generic.c in the Linux kernel before 3.18 gener...
vendor_debian·2014·CVSS 5.0
CVE-2014-8160 [MEDIUM] CVE-2014-8160: linux - net/netfilter/nf_conntrack_proto_generic.c in the Linux kernel before 3.18 gener...
net/netfilter/nf_conntrack_proto_generic.c in the Linux kernel before 3.18 generates incorrect conntrack entries during handling of certain iptables rule sets for the SCTP, DCCP, GRE, and UDP-Lite protocols, which allows remote attackers to bypass intended access restrictions via packets with disallowed port numbers.
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-jr7v-xpxw-4c4v: net/netfilter/nf_conntrack_proto_generic
ghsa_unreviewed·2022-05-13
CVE-2014-8160 [MEDIUM] CWE-20 GHSA-jr7v-xpxw-4c4v: net/netfilter/nf_conntrack_proto_generic
net/netfilter/nf_conntrack_proto_generic.c in the Linux kernel before 3.18 generates incorrect conntrack entries during handling of certain iptables rule sets for the SCTP, DCCP, GRE, and UDP-Lite protocols, which allows remote attackers to bypass intended access restrictions via packets with disallowed port numbers.
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
CVE-2014-8160: net/netfilter/nf_conntrack_proto_generic
osv·2015-03-02·CVSS 5.0
CVE-2014-8160 [MEDIUM] CVE-2014-8160: net/netfilter/nf_conntrack_proto_generic
net/netfilter/nf_conntrack_proto_generic.c in the Linux kernel before 3.18 generates incorrect conntrack entries during handling of certain iptables rule sets for the SCTP, DCCP, GRE, and UDP-Lite protocols, which allows remote attackers to bypass intended access restrictions via packets with disallowed port numbers.
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
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2014-8160 kernel: iptables restriction bypass if a protocol handler kernel module not loaded [fedora-all]
bugzilla·2015-01-14·CVSS 5.0
CVE-2014-8160 [MEDIUM] CVE-2014-8160 kernel: iptables restriction bypass if a protocol handler kernel module not loaded [fedora-all]
CVE-2014-8160 kernel: iptables restriction bypass if a protocol handler kernel module not loaded [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
Bugzilla
CVE-2014-8160 kernel: iptables restriction bypass if a protocol handler kernel module not loaded
bugzilla·2015-01-14·CVSS 5.0
CVE-2014-8160 [MEDIUM] CVE-2014-8160 kernel: iptables restriction bypass if a protocol handler kernel module not loaded
CVE-2014-8160 kernel: iptables restriction bypass if a protocol handler kernel module not loaded
It was reported [1] that iptables can allow protocols that do not have a protocol handler kernel module loaded.
Given following iptables ruleset:
-P FORWARD DROP
-A FORWARD -m sctp --dport 9 -j ACCEPT
-A FORWARD -p tcp --dport 80 -j ACCEPT
-A FORWARD -p tcp -m conntrack -m state ESTABLISHED,RELATED -j ACCEPT
One would assume that this allows SCTP on port 9 and TCP on port 80.
Unfortunately, if the SCTP conntrack module is not loaded, this allows *all* SCTP communication to pass through, i.e. -p sctp -j ACCEPT
[1]: http://www.spinics.net/lists/netfilter-devel/msg33430.html
Discussion:
Created kernel tracking bugs for this issue:
Affects: fedora-all [bug 1182063]
---
Upstream patch:
git
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=db29a9508a9246e77087c5531e45b2c88ec6988bhttp://lists.opensuse.org/opensuse-security-announce/2015-03/msg00020.htmlhttp://lists.opensuse.org/opensuse-security-announce/2015-04/msg00000.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-2015-0284.htmlhttp://rhn.redhat.com/errata/RHSA-2015-0290.htmlhttp://rhn.redhat.com/errata/RHSA-2015-0674.htmlhttp://www.debian.org/security/2015/dsa-3170http://www.mandriva.com/security/advisories?name=MDVSA-2015:057http://www.mandriva.com/security/advisories?name=MDVSA-2015:058http://www.openwall.com/lists/oss-security/2015/01/14/3http://www.securityfocus.com/bid/72061http://www.spinics.net/lists/netfilter-devel/msg33430.htmlhttp://www.ubuntu.com/usn/USN-2513-1http://www.ubuntu.com/usn/USN-2514-1http://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-2518-1https://bugzilla.redhat.com/show_bug.cgi?id=1182059https://github.com/torvalds/linux/commit/db29a9508a9246e77087c5531e45b2c88ec6988bhttp://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=db29a9508a9246e77087c5531e45b2c88ec6988bhttp://lists.opensuse.org/opensuse-security-announce/2015-03/msg00020.htmlhttp://lists.opensuse.org/opensuse-security-announce/2015-04/msg00000.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-2015-0284.htmlhttp://rhn.redhat.com/errata/RHSA-2015-0290.htmlhttp://rhn.redhat.com/errata/RHSA-2015-0674.htmlhttp://www.debian.org/security/2015/dsa-3170http://www.mandriva.com/security/advisories?name=MDVSA-2015:057http://www.mandriva.com/security/advisories?name=MDVSA-2015:058http://www.openwall.com/lists/oss-security/2015/01/14/3http://www.securityfocus.com/bid/72061http://www.spinics.net/lists/netfilter-devel/msg33430.htmlhttp://www.ubuntu.com/usn/USN-2513-1http://www.ubuntu.com/usn/USN-2514-1http://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-2518-1https://bugzilla.redhat.com/show_bug.cgi?id=1182059https://github.com/torvalds/linux/commit/db29a9508a9246e77087c5531e45b2c88ec6988b
2015-03-02
Published