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CVE-2016-10208

Status Candidate

Overview

The ext4_fill_super function in fs/ext4/super.c in the Linux kernel through 4.9.8 does not properly validate meta block groups, which allows physically proximate attackers to cause a denial of service (out-of-bounds read and system crash) via a crafted ext4 image.

Related Files

Ubuntu Security Notice USN-3754-1
Posted Aug 27, 2018
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3754-1 - 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 craft an ext4 image that causes a denial of service. It was discovered that an information disclosure vulnerability existed in the ACPI implementation of the Linux kernel. A local attacker could use this to expose sensitive information. Various other issues were also addressed.

tags | advisory, denial of service, kernel, local, info disclosure
systems | linux, ubuntu
advisories | CVE-2016-10208, CVE-2017-11472, CVE-2017-11473, CVE-2017-14991, CVE-2017-15649, CVE-2017-16526, CVE-2017-16527, CVE-2017-16529, CVE-2017-16531, CVE-2017-16532, CVE-2017-16533, CVE-2017-16535, CVE-2017-16536, CVE-2017-16537, CVE-2017-16538, CVE-2017-16643, CVE-2017-16644, CVE-2017-16645, CVE-2017-16650, CVE-2017-16911, CVE-2017-16912, CVE-2017-16913, CVE-2017-16914, CVE-2017-17558, CVE-2017-18255, CVE-2017-18270
SHA-256 | 2e3daae88eb6c229159a61e708a2ae19ecdc551119063721b0673a3449c498f9
Ubuntu Security Notice USN-3361-1
Posted Jul 21, 2017
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3361-1 - USN-3358-1 fixed vulnerabilities in the Linux kernel for Ubuntu 17.04. This update provides the corresponding updates for the Linux Hardware Enablement 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. Various other issues were also addressed.

tags | advisory, denial of service, kernel, local, vulnerability
systems | linux, ubuntu
advisories | CVE-2015-1350, CVE-2016-10208, CVE-2016-8405, CVE-2016-8636, CVE-2016-9083, CVE-2016-9084, CVE-2016-9191, CVE-2016-9604, CVE-2016-9755, CVE-2017-2583, CVE-2017-2584, CVE-2017-2596, CVE-2017-2618, CVE-2017-2671, CVE-2017-5546, CVE-2017-5549, CVE-2017-5550, CVE-2017-5551, CVE-2017-5576, CVE-2017-5669, CVE-2017-5897, CVE-2017-5970, CVE-2017-6001, CVE-2017-6214, CVE-2017-6345, CVE-2017-6346, CVE-2017-6347, CVE-2017-6348
SHA-256 | a02dd5836ffae854b87f99a0c65d15d6c8e6dd7ae37fde2f48b13dc8494472d6
Red Hat Security Advisory 2017-1298-01
Posted May 26, 2017
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2017-1298-01 - The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Security Fix: It was found that the packet_set_ring() function of the Linux kernel's networking implementation did not properly validate certain block-size data. A local attacker with CAP_NET_RAW capability could use this flaw to trigger a buffer overflow, resulting in the crash of the system. Due to the nature of the flaw, privilege escalation cannot be fully ruled out.

tags | advisory, overflow, kernel, local
systems | linux, redhat
advisories | CVE-2016-10208, CVE-2016-7910, CVE-2016-8646, CVE-2017-7308
SHA-256 | 40f0d88fee842312c08174e9a755735d073fbc79231455636cffc86f445ac1fd
Red Hat Security Advisory 2017-1297-01
Posted May 26, 2017
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2017-1297-01 - The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Security Fix: It was found that the packet_set_ring() function of the Linux kernel's networking implementation did not properly validate certain block-size data. A local attacker with CAP_NET_RAW capability could use this flaw to trigger a buffer overflow, resulting in the crash of the system. Due to the nature of the flaw, privilege escalation cannot be fully ruled out.

tags | advisory, overflow, kernel, local
systems | linux, redhat
advisories | CVE-2016-10208, CVE-2016-7910, CVE-2016-8646, CVE-2017-7308
SHA-256 | 4cdf95d71fe190028c5b4eaf8a98bb01e7ca1f467d3e4a94c93169e92070f5df
Red Hat Security Advisory 2017-1308-01
Posted May 26, 2017
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2017-1308-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix: It was found that the packet_set_ring() function of the Linux kernel's networking implementation did not properly validate certain block-size data. A local attacker with CAP_NET_RAW capability could use this flaw to trigger a buffer overflow, resulting in the crash of the system. Due to the nature of the flaw, privilege escalation cannot be fully ruled out.

tags | advisory, overflow, kernel, local
systems | linux, redhat
advisories | CVE-2016-10208, CVE-2016-7910, CVE-2016-8646, CVE-2017-5986, CVE-2017-7308
SHA-256 | 05e1316e780dc2164e9b946f6bf6af0785375c6af129a7e24f7c80990de20921
Ubuntu Security Notice USN-3234-1
Posted Mar 15, 2017
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3234-1 - 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 craft an ext4 image that causes a denial of service. It was discovered that the Linux kernel did not clear the setgid bit during a setxattr call on a tmpfs filesystem. A local attacker could use this to gain elevated group privileges. Various other issues were also addressed.

tags | advisory, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2016-10208, CVE-2017-5551
SHA-256 | 5c5e8fa100d4395abf35ee60376533197d5f908f480034af1b0af1c578c3ac34
Ubuntu Security Notice USN-3234-2
Posted Mar 15, 2017
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3234-2 - USN-3234-1 fixed vulnerabilities in the Linux kernel for Ubuntu 16.04 LTS. This update provides the corresponding updates for the Linux Hardware Enablement kernel from Ubuntu 16.04 LTS for Ubuntu 14.04 LTS. 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 craft an ext4 image that causes a denial of service. Various other issues were also addressed.

tags | advisory, denial of service, kernel, vulnerability
systems | linux, ubuntu
advisories | CVE-2016-10208, CVE-2017-5551
SHA-256 | 3b8a170883b326573977aa700ad8d4416fc9066a89106d450e459a05f114aba1
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