CVE-2016-9755
published 2016-12-28CVE-2016-9755: The netfilter subsystem in the Linux kernel before 4.9 mishandles IPv6 reassembly, which allows local users to cause a denial of service (integer overflow…
PriorityP335high7.8CVSS 3.0
AVLACLPRLUINSUCHIHAH
EPSS
0.39%
31.8th percentile
The netfilter subsystem in the Linux kernel before 4.9 mishandles IPv6 reassembly, which allows local users to cause a denial of service (integer overflow, out-of-bounds write, and GPF) or possibly have unspecified other impact via a crafted application that makes socket, connect, and writev system calls, related to net/ipv6/netfilter/nf_conntrack_reasm.c and net/ipv6/netfilter/nf_defrag_ipv6_hooks.c.
Affected
6 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 4.8.15-1 (bookworm) | linux 4.8.15-1 (bookworm) |
| linux | linux_kernel | <= 4.8.15 | — |
| linux | linux_kernel | >= 0 < 4.8.15-1 | 4.8.15-1 |
| linux | linux_kernel | >= 0 < 4.8.15-1 | 4.8.15-1 |
| linux | linux_kernel | >= 0 < 4.8.15-1 | 4.8.15-1 |
| linux | linux_kernel | >= 0 < 4.8.15-1 | 4.8.15-1 |
CVSS provenance
nvdv3.07.8HIGHCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
nvdv2.04.6MEDIUMAV:L/AC:L/Au:N/C:P/I:P/A:P
osv7.8HIGH
vendor_debian7.8HIGH
vendor_redhat7.8HIGH
vendor_ubuntu5.5MEDIUM
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GHSA
GHSA-gh2g-646j-9wxw: The netfilter subsystem in the Linux kernel before 4
ghsa_unreviewed·2022-05-14
CVE-2016-9755 [HIGH] CWE-787 GHSA-gh2g-646j-9wxw: The netfilter subsystem in the Linux kernel before 4
The netfilter subsystem in the Linux kernel before 4.9 mishandles IPv6 reassembly, which allows local users to cause a denial of service (integer overflow, out-of-bounds write, and GPF) or possibly have unspecified other impact via a crafted application that makes socket, connect, and writev system calls, related to net/ipv6/netfilter/nf_conntrack_reasm.c and net/ipv6/netfilter/nf_defrag_ipv6_hooks.c.
OSV
linux-hwe vulnerabilities
osv·2017-07-21·CVSS 5.5
[MEDIUM] linux-hwe vulnerabilities
linux-hwe vulnerabilities
USN-3358-1 fixed vulnerabilities in the Linux kernel for Ubuntu 17.04.
This update provides the corresponding updates for the Linux Hardware
Enablement (HWE) kernel from Ubuntu 17.04 for Ubuntu 16.04 LTS. Please
note that this update changes the Linux HWE kernel to the 4.10 based
kernel from Ubuntu 17.04, superseding the 4.8 based HWE kernel from
Ubuntu 16.10.
Ben Harris discovered that the Linux kernel would strip extended privilege
attributes of files when performing a failed unprivileged system call. A
local attacker could use this to cause a denial of service. (CVE-2015-1350)
Ralf Spenneberg discovered that the ext4 implementation in the Linux kernel
did not properly validate meta block groups. An attacker with physical
access could use this to specially cr
OSV
CVE-2016-9755: The netfilter subsystem in the Linux kernel before 4
osv·2016-12-28·CVSS 7.8
CVE-2016-9755 [HIGH] CVE-2016-9755: The netfilter subsystem in the Linux kernel before 4
The netfilter subsystem in the Linux kernel before 4.9 mishandles IPv6 reassembly, which allows local users to cause a denial of service (integer overflow, out-of-bounds write, and GPF) or possibly have unspecified other impact via a crafted application that makes socket, connect, and writev system calls, related to net/ipv6/netfilter/nf_conntrack_reasm.c and net/ipv6/netfilter/nf_defrag_ipv6_hooks.c.
Ubuntu
Linux kernel (HWE) vulnerabilities
vendor_ubuntu·2017-07-21·CVSS 5.5
CVE-2015-1350 [MEDIUM] Linux kernel (HWE) vulnerabilities
Title: Linux kernel (HWE) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
USN-3358-1 fixed vulnerabilities in the Linux kernel for Ubuntu 17.04.
This update provides the corresponding updates for the Linux Hardware
Enablement (HWE) kernel from Ubuntu 17.04 for Ubuntu 16.04 LTS. Please
note that this update changes the Linux HWE kernel to the 4.10 based
kernel from Ubuntu 17.04, superseding the 4.8 based HWE kernel from
Ubuntu 16.10.
Ben Harris discovered that the Linux kernel would strip extended privilege
attributes of files when performing a failed unprivileged system call. A
local attacker could use this to cause a denial of service. (CVE-2015-1350)
Ralf Spenneberg discovered that the ext4 implementation in the Linux kernel
did not properly validate
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2017-07-20·CVSS 5.5
CVE-2014-9900 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
It was discovered that the Linux kernel did not properly initialize a Wake-
on-Lan data structure. A local attacker could use this to expose sensitive
information (kernel memory). (CVE-2014-9900)
Dmitry Vyukov, Andrey Konovalov, Florian Westphal, and Eric Dumazet
discovered that the netfiler subsystem in the Linux kernel mishandled IPv6
packet reassembly. A local user could use this to cause a denial of service
(system crash) or possibly execute arbitrary code. (CVE-2016-9755)
Alexander Potapenko discovered a race condition in the Advanced Linux Sound
Architecture (ALSA) subsystem in the Linux kernel. A local attacker could
use this to expose sensitive information (kernel memory).
(CVE-
Red Hat
kernel: netfilter: Out-of-bounds write due to a signedness issue when defragmenting IPv6 packets
vendor_redhat·2016-11-26·CVSS 7.8
CVE-2016-9755 [HIGH] CWE-787 kernel: netfilter: Out-of-bounds write due to a signedness issue when defragmenting IPv6 packets
kernel: netfilter: Out-of-bounds write due to a signedness issue when defragmenting IPv6 packets
The netfilter subsystem in the Linux kernel before 4.9 mishandles IPv6 reassembly, which allows local users to cause a denial of service (integer overflow, out-of-bounds write, and GPF) or possibly have unspecified other impact via a crafted application that makes socket, connect, and writev system calls, related to net/ipv6/netfilter/nf_conntrack_reasm.c and net/ipv6/netfilter/nf_defrag_ipv6_hooks.c.
An attacker on a network could abuse a flaw in the IPv6 stack fragment reassembly code to induce kernel memory corruption on the system, possibly leading to a system crash.
Package: kernel (Red Hat Enterprise Linux 5) - Not affected
Package: kernel (Red Hat Enterprise Linux 6) - Not affected
Debian
CVE-2016-9755: linux - The netfilter subsystem in the Linux kernel before 4.9 mishandles IPv6 reassembl...
vendor_debian·2016·CVSS 7.8
CVE-2016-9755 [HIGH] CVE-2016-9755: linux - The netfilter subsystem in the Linux kernel before 4.9 mishandles IPv6 reassembl...
The netfilter subsystem in the Linux kernel before 4.9 mishandles IPv6 reassembly, which allows local users to cause a denial of service (integer overflow, out-of-bounds write, and GPF) or possibly have unspecified other impact via a crafted application that makes socket, connect, and writev system calls, related to net/ipv6/netfilter/nf_conntrack_reasm.c and net/ipv6/netfilter/nf_defrag_ipv6_hooks.c.
Scope: local
bookworm: resolved (fixed in 4.8.15-1)
bullseye: resolved (fixed in 4.8.15-1)
forky: resolved (fixed in 4.8.15-1)
sid: resolved (fixed in 4.8.15-1)
trixie: resolved (fixed in 4.8.15-1)
No detection rules found.
No public exploits indexed.
arXiv
Timeloops: Automatic System Call Policy Learning for Containerized Microservices
arxiv_fulltext·2022-09-26
Timeloops: Automatic System Call Policy Learning for Containerized Microservices
Meghna Pancholi
[email protected]
Columbia University
Andreas D. Kellas
[email protected]
Columbia University
Vasileios P. Kemerlis
[email protected]
Brown University
Simha Sethumadhavan
[email protected]
Columbia University
## Abstract
We introduce , a novel technique for automatically learning system
call filtering policies for containerized microservices applications. At
run-time, automatically learns which system calls a program should
be allowed to invoke, while rejecting attempts to call spurious system calls.
Further, addresses many of the shortcomings of state-of-the-art
static analysis-based techniques, such as the ability to generate tight filters
for programs written in interpreted languages such as PHP, Python, and
JavaScript. has a simple and rob
Bugzilla
CVE-2016-9755 kernel: netfilter: Out-of-bounds write due to a signedness issue when defragmenting ipv6 packets [fedora-all]
bugzilla·2016-12-02·CVSS 7.8
CVE-2016-9755 [HIGH] CVE-2016-9755 kernel: netfilter: Out-of-bounds write due to a signedness issue when defragmenting ipv6 packets [fedora-all]
CVE-2016-9755 kernel: netfilter: Out-of-bounds write due to a signedness issue when defragmenting ipv6 packets [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
Bugzilla
CVE-2016-9755 kernel: netfilter: Out-of-bounds write due to a signedness issue when defragmenting IPv6 packets
bugzilla·2016-12-02·CVSS 7.8
CVE-2016-9755 [HIGH] CVE-2016-9755 kernel: netfilter: Out-of-bounds write due to a signedness issue when defragmenting IPv6 packets
CVE-2016-9755 kernel: netfilter: Out-of-bounds write due to a signedness issue when defragmenting IPv6 packets
A flaw was found in the Linux kernel networking stack in which an attacker can create crafted fragmented IPV6 packets that require reassembly. The network header offset in the reassembly process is assumed to be located in an offset prior to the fragment in memory.
In some situations during fragment reassembly the header may be reconstructed in the assumed location and overwrite kernel memory with another header.
The flaw involves an issue that all network headers before fragment header are pulled. Normal ipv6 reassembly will drop the skb when errors occur further down the line.
The netfilter reassembly code neglects to do this correctly and instead passed the original fragmen
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9b57da0630c9fd36ed7a20fc0f98dc82cc0777fahttp://www.openwall.com/lists/oss-security/2016/12/01/10http://www.securityfocus.com/bid/94626https://bugzilla.redhat.com/show_bug.cgi?id=1400904https://github.com/torvalds/linux/commit/9b57da0630c9fd36ed7a20fc0f98dc82cc0777fahttps://groups.google.com/forum/#%21topic/syzkaller/GFbGpX7nTEohttps://www.spinics.net/lists/netdev/msg407525.htmlhttp://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9b57da0630c9fd36ed7a20fc0f98dc82cc0777fahttp://www.openwall.com/lists/oss-security/2016/12/01/10http://www.securityfocus.com/bid/94626https://bugzilla.redhat.com/show_bug.cgi?id=1400904https://github.com/torvalds/linux/commit/9b57da0630c9fd36ed7a20fc0f98dc82cc0777fahttps://groups.google.com/forum/#%21topic/syzkaller/GFbGpX7nTEohttps://www.spinics.net/lists/netdev/msg407525.html
2016-12-28
Published