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CVE-2016-8658

Status Candidate

Overview

Stack-based buffer overflow in the brcmf_cfg80211_start_ap function in drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c in the Linux kernel before 4.7.5 allows local users to cause a denial of service (system crash) or possibly have unspecified other impact via a long SSID Information Element in a command to a Netlink socket.

Related Files

Ubuntu Security Notice USN-3161-4
Posted Dec 20, 2016
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3161-4 - Tilman Schmidt and Sasha Levin discovered a use-after-free condition in the TTY implementation in the Linux kernel. A local attacker could use this to expose sensitive information. It was discovered that the Video For Linux Two implementation in the Linux kernel did not properly handle multiple planes when processing a VIDIOC_DQBUF ioctl. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2015-8964, CVE-2016-4568, CVE-2016-6213, CVE-2016-7097, CVE-2016-7425, CVE-2016-8630, CVE-2016-8633, CVE-2016-8645, CVE-2016-8658, CVE-2016-9555, CVE-2016-9644
SHA-256 | 09cffad9b41759532941fa035fb7aeb597e6fa782bb0de514b160c4fbc83e328
Ubuntu Security Notice USN-3161-3
Posted Dec 20, 2016
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3161-3 - Tilman Schmidt and Sasha Levin discovered a use-after-free condition in the TTY implementation in the Linux kernel. A local attacker could use this to expose sensitive information. It was discovered that the Video For Linux Two implementation in the Linux kernel did not properly handle multiple planes when processing a VIDIOC_DQBUF ioctl. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2015-8964, CVE-2016-4568, CVE-2016-6213, CVE-2016-7042, CVE-2016-7097, CVE-2016-7425, CVE-2016-8630, CVE-2016-8633, CVE-2016-8645, CVE-2016-8658, CVE-2016-9178, CVE-2016-9555
SHA-256 | 3b72c509222788127c3449442ce79d5f2bb6a03e63fee7e3522725b77a66b344
Kernel Live Patch Security Notice LSN-0013-1
Posted Nov 30, 2016
Authored by Luis Henriques

Ondrej Kozina discovered that the keyring interface in the Linux kernel contained a buffer overflow when displaying timeout events via the /proc/keys interface. A local attacker could use this to cause a denial of service (system crash). Dmitry Vyukov discovered a use-after-free vulnerability during error processing in the recvmmsg(2) implementation in the Linux kernel. A remote attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. Various other kernel vulnerabilities were also discovered and addressed.

tags | advisory, remote, denial of service, overflow, arbitrary, kernel, local, vulnerability
systems | linux
advisories | CVE-2016-7042, CVE-2016-7117, CVE-2016-7425, CVE-2016-8658
SHA-256 | 5eae3cc7ae9949b636e16234a44d66f6ecfbbb7d410b77b7636cc74cb28cfc31
Ubuntu Security Notice USN-3146-2
Posted Nov 30, 2016
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3146-2 - USN-3146-1 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. It was discovered that the __get_user_asm_ex implementation in the Linux kernel for x86/x86_64 contained extended asm statements that were incompatible with the exception table. A local attacker could use this to gain administrative privileges. Various other issues were also addressed.

tags | advisory, x86, kernel, local, vulnerability
systems | linux, ubuntu
advisories | CVE-2016-7097, CVE-2016-7425, CVE-2016-8658, CVE-2016-9644
SHA-256 | f19373773609e5f45ffaa3056bccfff36fc9074e721afb3c23140514cba33613
Ubuntu Security Notice USN-3146-1
Posted Nov 30, 2016
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3146-1 - It was discovered that the __get_user_asm_ex implementation in the Linux kernel for x86/x86_64 contained extended asm statements that were incompatible with the exception table. A local attacker could use this to gain administrative privileges. Andreas Gruenbacher and Jan Kara discovered that the filesystem implementation in the Linux kernel did not clear the setgid bit during a setxattr call. A local attacker could use this to possibly elevate group privileges. Various other issues were also addressed.

tags | advisory, x86, kernel, local
systems | linux, ubuntu
advisories | CVE-2016-7097, CVE-2016-7425, CVE-2016-8658, CVE-2016-9644
SHA-256 | 866d7bda3219cca441808b8427f774eec5e84f72709d3a29611f6b9bc47b4ee1
Ubuntu Security Notice USN-3145-2
Posted Nov 30, 2016
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3145-2 - USN-3145-1 fixed vulnerabilities in the Linux kernel for Ubuntu 14.04 LTS. This update provides the corresponding updates for the Linux Hardware Enablement kernel from Ubuntu 14.04 LTS for Ubuntu 12.04 LTS. Marco Grassi discovered that the driver for Areca RAID Controllers in the Linux kernel did not properly validate control messages. A local attacker could use this to cause a denial of service or possibly gain privileges. Various other issues were also addressed.

tags | advisory, denial of service, kernel, local, vulnerability
systems | linux, ubuntu
advisories | CVE-2016-7425, CVE-2016-8658
SHA-256 | 2d4e1867096ccba98da932b775e03c4b91aee4f7258ab10f399832c6c0bcc5e2
Ubuntu Security Notice USN-3145-1
Posted Nov 30, 2016
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3145-1 - Marco Grassi discovered that the driver for Areca RAID Controllers in the Linux kernel did not properly validate control messages. A local attacker could use this to cause a denial of service or possibly gain privileges. Daxing Guo discovered a stack-based buffer overflow in the Broadcom IEEE802.11n FullMAC driver in the Linux kernel. A local attacker could use this to cause a denial of service or possibly gain privileges. Various other issues were also addressed.

tags | advisory, denial of service, overflow, kernel, local
systems | linux, ubuntu
advisories | CVE-2016-7425, CVE-2016-8658
SHA-256 | e9d32953ccbbf124bab9efb2bc7409afdac81d72acd4c30be579d590fcba2667
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