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CVE-2016-4997

Status Candidate

Overview

The compat IPT_SO_SET_REPLACE and IP6T_SO_SET_REPLACE setsockopt implementations in the netfilter subsystem in the Linux kernel before 4.6.3 allow local users to gain privileges or cause a denial of service (memory corruption) by leveraging in-container root access to provide a crafted offset value that triggers an unintended decrement.

Related Files

Ubuntu Security Notice USN-3338-2
Posted Jun 29, 2017
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3338-2 - USN-3338-1 fixed vulnerabilities in the Linux kernel. However, the fix for CVE-2017-1000364 introduced regressions for some Java applications. This update addresses the issue. It was discovered that the stack guard page for processes in the Linux kernel was not sufficiently large enough to prevent overlapping with the heap. An attacker could leverage this with another vulnerability to execute arbitrary code and gain administrative privileges Various other issues were also addressed.

tags | advisory, java, arbitrary, kernel, vulnerability
systems | linux, ubuntu
advisories | CVE-2016-4997, CVE-2017-1000364
MD5 | 324fdc6eb4d3403b6a4941ed04dd334f
Ubuntu Security Notice USN-3338-1
Posted Jun 21, 2017
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3338-1 - It was discovered that the stack guard page for processes in the Linux kernel was not sufficiently large enough to prevent overlapping with the heap. An attacker could leverage this with another vulnerability to execute arbitrary code and gain administrative privileges Jesse Hertz and Tim Newsham discovered that the Linux netfilter implementation did not correctly perform validation when handling 32 bit compatibility IPT_SO_SET_REPLACE events on 64 bit platforms. A local unprivileged attacker could use this to cause a denial of service or execute arbitrary code with administrative privileges. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2016-4997, CVE-2017-1000364
MD5 | ff11a345e1bef3a88baf80b2a7e8c7b3
HP Security Bulletin HPSBGN03680 1
Posted Dec 1, 2016
Authored by HP | Site hp.com

HP Security Bulletin HPSBGN03680 1 - Potential security vulnerabilities were identified in HPE Propel. The vulnerabilities could be exploited locally to allow escalation of privilege or Denial of Service (DoS). Revision 1 of this advisory.

tags | advisory, denial of service, vulnerability
advisories | CVE-2016-1669, CVE-2016-4997, CVE-2016-5195
MD5 | 8b5a6009b583e9e0c6a830265c78e74c
Linux Kernel 4.6.3 Netfilter Privilege Escalation
Posted Nov 23, 2016
Authored by h00die, vnik | Site metasploit.com

This Metasploit module attempts to exploit a netfilter bug on Linux Kernels before 4.6.3, and currently only works against Ubuntu 16.04 (not 16.04.1) with kernel 4.4.0-21-generic. Several conditions have to be met for successful exploitation.

tags | exploit, kernel, root
systems | linux, fedora, ubuntu
advisories | CVE-2016-4997
MD5 | 3749f597d7dba9ade2186bcc9aef3668
Linux Kernel 4.6.3 Netfilter Privilege Escalation
Posted Sep 27, 2016
Authored by h00die, vnik | Site metasploit.com

This Metasploit module attempts to exploit a netfilter bug on Linux Kernels befoe 4.6.3, and currently only works against Ubuntu 16.04 (not 16.04.1) with kernel 4.4.0-21-generic. Several conditions have to be met for successful exploitation: Ubuntu: 1. ip_tables.ko (ubuntu), iptable_raw (fedora) has to be loaded (root running iptables -L will do such) 2. libc6-dev-i386 (ubuntu), glibc-devel.i686

tags | exploit, kernel, root
systems | linux, fedora, ubuntu
advisories | CVE-2016-4997
MD5 | d27040d1104d9c3b30bc4f1eebb0d24d
Red Hat Security Advisory 2016-1847-01
Posted Sep 15, 2016
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2016-1847-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix: A security flaw was found in the Linux kernel in the mark_source_chains() function in "net/ipv4/netfilter/ip_tables.c". It is possible for a user-supplied "ipt_entry" structure to have a large "next_offset" field. This field is not bounds checked prior to writing to a counter value at the supplied offset.

tags | advisory, kernel
systems | linux, redhat
advisories | CVE-2016-3134, CVE-2016-4997, CVE-2016-4998
MD5 | 41ccad68aa5a14474e880fb5ed54d002
Red Hat Security Advisory 2016-1875-01
Posted Sep 15, 2016
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2016-1875-01 - The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. The kernel-rt packages have been upgraded to the kernel-3.10.0-327.36.1 source tree, which provides a number of bug fixes over the previous version. Security Fix: A security flaw was found in the Linux kernel in the mark_source_chains() function in "net/ipv4/netfilter/ip_tables.c". It is possible for a user-supplied "ipt_entry" structure to have a large "next_offset" field. This field is not bounds checked prior to writing to a counter value at the supplied offset.

tags | advisory, kernel
systems | linux, redhat
advisories | CVE-2016-3134, CVE-2016-4997, CVE-2016-4998
MD5 | 4393b4a708efbf806481e5ff04e11556
Red Hat Security Advisory 2016-1883-01
Posted Sep 15, 2016
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2016-1883-01 - The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. The kernel-rt packages have been upgraded to version 3.10.0-327.rt56.197, which provides a number of bug fixes over the previous version. Security Fix: A security flaw was found in the Linux kernel in the mark_source_chains() function in "net/ipv4/netfilter/ip_tables.c". It is possible for a user-supplied "ipt_entry" structure to have a large "next_offset" field. This field is not bounds checked prior to writing to a counter value at the supplied offset.

tags | advisory, kernel
systems | linux, redhat
advisories | CVE-2016-3134, CVE-2016-4997, CVE-2016-4998
MD5 | d8be4b948f2b29d404cd38cb26922160
Ubuntu Security Notice USN-3016-4
Posted Jun 28, 2016
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3016-4 - USN-3016-1 fixed vulnerabilities in the Linux kernel for Ubuntu 16.04 LTS. This update provides the corresponding updates for the Linux Hardware Enablement (HWE) kernel from Ubuntu 16.04 LTS for Ubuntu 14.04 LTS. Jesse Hertz and Tim Newsham discovered that the Linux netfilter implementation did not correctly perform validation when handling 32 bit compatibility IPT_SO_SET_REPLACE events on 64 bit platforms. A local unprivileged attacker could use this to cause a denial of service (system crash) or execute arbitrary code with administrative privileges. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary, kernel, local, vulnerability
systems | linux, ubuntu
advisories | CVE-2016-4482, CVE-2016-4569, CVE-2016-4578, CVE-2016-4580, CVE-2016-4913, CVE-2016-4951, CVE-2016-4997, CVE-2016-4998
MD5 | 46a6bcf7b416d14989e137b0ea30522e
Ubuntu Security Notice USN-3017-3
Posted Jun 28, 2016
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3017-3 - USN-3017-1 fixed vulnerabilities in the Linux kernel for Ubuntu 15.10. This update provides the corresponding updates for the Linux Hardware Enablement (HWE) kernel from Ubuntu 15.10 for Ubuntu 14.04 LTS. Jesse Hertz and Tim Newsham discovered that the Linux netfilter implementation did not correctly perform validation when handling 32 bit compatibility IPT_SO_SET_REPLACE events on 64 bit platforms. A local unprivileged attacker could use this to cause a denial of service (system crash) or execute arbitrary code with administrative privileges. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary, kernel, local, vulnerability
systems | linux, ubuntu
advisories | CVE-2016-4482, CVE-2016-4569, CVE-2016-4578, CVE-2016-4580, CVE-2016-4913, CVE-2016-4951, CVE-2016-4997, CVE-2016-4998
MD5 | 62dd7a854b18488083c99db22444cc1f
Ubuntu Security Notice USN-3020-1
Posted Jun 28, 2016
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3020-1 - Jesse Hertz and Tim Newsham discovered that the Linux netfilter implementation did not correctly perform validation when handling 32 bit compatibility IPT_SO_SET_REPLACE events on 64 bit platforms. A local unprivileged attacker could use this to cause a denial of service (system crash) or execute arbitrary code with administrative privileges. Kangjie Lu discovered an information leak in the core USB implementation in the Linux kernel. A local attacker could use this to obtain potentially sensitive information from kernel memory. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2016-4482, CVE-2016-4569, CVE-2016-4578, CVE-2016-4580, CVE-2016-4913, CVE-2016-4951, CVE-2016-4997, CVE-2016-4998
MD5 | bc2d0ce7def46bbd0135e27a31e3e0cf
Ubuntu Security Notice USN-3018-2
Posted Jun 28, 2016
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3018-2 - USN-3018-1 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. Jesse Hertz and Tim Newsham discovered that the Linux netfilter implementation did not correctly perform validation when handling 32 bit compatibility IPT_SO_SET_REPLACE events on 64 bit platforms. A local unprivileged attacker could use this to cause a denial of service (system crash) or execute arbitrary code with administrative privileges. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary, kernel, local, vulnerability
systems | linux, ubuntu
advisories | CVE-2016-4482, CVE-2016-4565, CVE-2016-4569, CVE-2016-4578, CVE-2016-4580, CVE-2016-4913, CVE-2016-4997, CVE-2016-4998
MD5 | 8180c16556a8fd9645c421df868a3b26
Ubuntu Security Notice USN-3019-1
Posted Jun 28, 2016
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3019-1 - Jesse Hertz and Tim Newsham discovered that the Linux netfilter implementation did not correctly perform validation when handling 32 bit compatibility IPT_SO_SET_REPLACE events on 64 bit platforms. A local unprivileged attacker could use this to cause a denial of service (system crash) or execute arbitrary code with administrative privileges. Kangjie Lu discovered an information leak in the core USB implementation in the Linux kernel. A local attacker could use this to obtain potentially sensitive information from kernel memory. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2016-4482, CVE-2016-4565, CVE-2016-4569, CVE-2016-4578, CVE-2016-4580, CVE-2016-4913, CVE-2016-4997, CVE-2016-4998
MD5 | 488e2a8d01b9b005772a7fb47bb284e0
Ubuntu Security Notice USN-3018-1
Posted Jun 28, 2016
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3018-1 - Jesse Hertz and Tim Newsham discovered that the Linux netfilter implementation did not correctly perform validation when handling 32 bit compatibility IPT_SO_SET_REPLACE events on 64 bit platforms. A local unprivileged attacker could use this to cause a denial of service (system crash) or execute arbitrary code with administrative privileges. Kangjie Lu discovered an information leak in the core USB implementation in the Linux kernel. A local attacker could use this to obtain potentially sensitive information from kernel memory. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2016-4482, CVE-2016-4565, CVE-2016-4569, CVE-2016-4578, CVE-2016-4580, CVE-2016-4913, CVE-2016-4997, CVE-2016-4998
MD5 | ba30360c6848a5845f6bf5f39c894834
Ubuntu Security Notice USN-3017-1
Posted Jun 27, 2016
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3017-1 - Jesse Hertz and Tim Newsham discovered that the Linux netfilter implementation did not correctly perform validation when handling 32 bit compatibility IPT_SO_SET_REPLACE events on 64 bit platforms. A local unprivileged attacker could use this to cause a denial of service (system crash) or execute arbitrary code with administrative privileges. Kangjie Lu discovered an information leak in the core USB implementation in the Linux kernel. A local attacker could use this to obtain potentially sensitive information from kernel memory. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2016-4482, CVE-2016-4569, CVE-2016-4578, CVE-2016-4580, CVE-2016-4913, CVE-2016-4951, CVE-2016-4997, CVE-2016-4998
MD5 | 837c9e2dd1134fd6e3aee5b278f1ce18
Ubuntu Security Notice USN-3017-2
Posted Jun 27, 2016
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3017-2 - Jesse Hertz and Tim Newsham discovered that the Linux netfilter implementation did not correctly perform validation when handling 32 bit compatibility IPT_SO_SET_REPLACE events on 64 bit platforms. A local unprivileged attacker could use this to cause a denial of service (system crash) or execute arbitrary code with administrative privileges. Kangjie Lu discovered an information leak in the core USB implementation in the Linux kernel. A local attacker could use this to obtain potentially sensitive information from kernel memory. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2016-4482, CVE-2016-4569, CVE-2016-4578, CVE-2016-4580, CVE-2016-4913, CVE-2016-4951, CVE-2016-4997, CVE-2016-4998
MD5 | 1ed79e00454b171deb039a5cf745115d
Ubuntu Security Notice USN-3016-3
Posted Jun 27, 2016
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3016-3 - Jesse Hertz and Tim Newsham discovered that the Linux netfilter implementation did not correctly perform validation when handling 32 bit compatibility IPT_SO_SET_REPLACE events on 64 bit platforms. A local unprivileged attacker could use this to cause a denial of service (system crash) or execute arbitrary code with administrative privileges. Kangjie Lu discovered an information leak in the core USB implementation in the Linux kernel. A local attacker could use this to obtain potentially sensitive information from kernel memory. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2016-4482, CVE-2016-4569, CVE-2016-4578, CVE-2016-4580, CVE-2016-4913, CVE-2016-4951, CVE-2016-4997, CVE-2016-4998
MD5 | 7391a4889dd81238fe497f1044247fa6
Ubuntu Security Notice USN-3016-2
Posted Jun 27, 2016
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3016-2 - Jesse Hertz and Tim Newsham discovered that the Linux netfilter implementation did not correctly perform validation when handling 32 bit compatibility IPT_SO_SET_REPLACE events on 64 bit platforms. A local unprivileged attacker could use this to cause a denial of service (system crash) or execute arbitrary code with administrative privileges. Kangjie Lu discovered an information leak in the core USB implementation in the Linux kernel. A local attacker could use this to obtain potentially sensitive information from kernel memory. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2016-4482, CVE-2016-4569, CVE-2016-4578, CVE-2016-4580, CVE-2016-4913, CVE-2016-4951, CVE-2016-4997, CVE-2016-4998
MD5 | c2b73eae21142de8424ba8a935f1c5c5
Ubuntu Security Notice USN-3016-1
Posted Jun 27, 2016
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3016-1 - Jesse Hertz and Tim Newsham discovered that the Linux netfilter implementation did not correctly perform validation when handling 32 bit compatibility IPT_SO_SET_REPLACE events on 64 bit platforms. A local unprivileged attacker could use this to cause a denial of service (system crash) or execute arbitrary code with administrative privileges. Kangjie Lu discovered an information leak in the core USB implementation in the Linux kernel. A local attacker could use this to obtain potentially sensitive information from kernel memory. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2016-4482, CVE-2016-4569, CVE-2016-4578, CVE-2016-4580, CVE-2016-4913, CVE-2016-4951, CVE-2016-4997, CVE-2016-4998
MD5 | 84ab189171451d96452c4c4141299acd
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