USN-2989-1: Linux kernel vulnerabilities

Justin Yackoski discovered that the Atheros L2 Ethernet Driver in the Linux kernel incorrectly enables scatter/gather I/O. A remote attacker could use this to obtain potentially sensitive information from kernel memory. CVE-2016-2117 Jason A. Donenfeld discovered multiple out-of-bounds reads in t...

USN-2989-1 linux vulnerabilities

Justin Yackoski discovered that the Atheros L2 Ethernet Driver in the Linux kernel incorrectly enables scatter/gather I/O. A remote attacker could use this to obtain potentially sensitive information from kernel memory. CVE-2016-2117 Jason A. Donenfeld discovered multiple out-of-bounds reads in t...

Linux内核 Keyrings 引用计数溢出 UAF 漏洞

漏洞分析 Linux Kernel的这个漏洞会造成两个影响，第一个是造成信息泄露，可以bypass ASLR，另一个是UAF造成代码执行，利用的是KeyRing机制中的两个漏洞，一个是对Keyring操作控制不严谨，另一个是利用对Keyring计数变量控制不严谨，其中代码执行利用条件相对苛刻，下面对此漏洞进行详细分析。 Keyring信息泄露： Keyring和安全密钥有关，进程可以申请自己新的keyring，同时也可以通过申请新的keyring替换老的keyring，其中，调用到joinsessionkeyring函数。 long joinsessionkeyringconst cha...

Ubuntu 16.04 LTS : Linux kernel vulnerabilities (USN-2965-1)

The remote Ubuntu 16.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-2965-1 advisory. Jann Horn discovered that the extended Berkeley Packet Filter eBPF implementation in the Linux kernel did not properly reference count file descriptors,...

Ubuntu 14.04 LTS : Linux kernel (Xenial HWE) vulnerabilities (USN-2965-2)

The remote Ubuntu 14.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-2965-2 advisory. USN-2965-1 fixed vulnerabilities in the Linux kernel for Ubuntu 16.04 LTS. This update provides the corresponding updates for the Linux Hardware Enableme...

Ubuntu 16.04 LTS : Linux kernel (Qualcomm Snapdragon) vulnerability (USN-2965-4)

The remote Ubuntu 16.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-2965-4 advisory. Jann Horn discovered that the extended Berkeley Packet Filter eBPF implementation in the Linux kernel did not properly reference count file descriptors,...

Amazon Linux: Security Advisory (ALAS-2016-694)

The remote host is missing an update for the SPDX-FileCopyrightText: 2016 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

USN-2965-4: Linux kernel (Qualcomm Snapdragon) vulnerability

Jann Horn discovered that the extended Berkeley Packet Filter eBPF implementation in the Linux kernel did not properly reference count file descriptors, leading to a use-after-free. A local unprivileged attacker could use this to gain administrative privileges. Ralf Spenneberg discovered that the...

USN-2965-3: Linux kernel (Raspberry Pi 2) vulnerabilities

Jann Horn discovered that the extended Berkeley Packet Filter eBPF implementation in the Linux kernel did not properly reference count file descriptors, leading to a use-after-free. A local unprivileged attacker could use this to gain administrative privileges. CVE-2016-4557 Ralf Spenneberg...

USN-2965-2: Linux kernel (Xenial HWE) vulnerabilities

USN-2965-1 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. Jann Horn discovered that the extended Berkeley Packet Filter eBPF implementation in t...

USN-2965-1: Linux kernel vulnerabilities

Jann Horn discovered that the extended Berkeley Packet Filter eBPF implementation in the Linux kernel did not properly reference count file descriptors, leading to a use-after-free. A local unprivileged attacker could use this to gain administrative privileges. CVE-2016-4557 Ralf Spenneberg...

CVE-2016-3672

The archpickmmaplayout function in arch/x86/mm/mmap.c in the Linux kernel through 4.5.2 does not properly randomize the legacy base address, which makes it easier for local users to defeat the intended restrictions on the ADDRNORANDOMIZE flag, and bypass the ASLR protection mechanism for a setuid...

CVE-2016-3672

The archpickmmaplayout function in arch/x86/mm/mmap.c in the Linux kernel through 4.5.2 does not properly randomize the legacy base address, which makes it easier for local users to defeat the intended restrictions on the ADDRNORANDOMIZE flag, and bypass the ASLR protection mechanism for a setuid...

Design/Logic Flaw

The archpickmmaplayout function in arch/x86/mm/mmap.c in the Linux kernel through 4.5.2 does not properly randomize the legacy base address, which makes it easier for local users to defeat the intended restrictions on the ADDRNORANDOMIZE flag, and bypass the ASLR protection mechanism for a setuid...

CVE-2016-3672

The archpickmmaplayout function in arch/x86/mm/mmap.c in the Linux kernel through 4.5.2 does not properly randomize the legacy base address, which makes it easier for local users to defeat the intended restrictions on the ADDRNORANDOMIZE flag, and bypass the ASLR protection mechanism for a setuid...

CVE-2016-3672

CVE-2016-3672 affects the Linux kernel before 4.5.3 where arch_pick_mmap_layout in arch/x86/mm/mmap.c fails to properly randomize the legacy base address. This defeats ADDR_NO_RANDOMIZE protections and can bypass ASLR for setuid/setgid programs by disabling stack-consumption resource limits. Affe...

CVE-2016-3672

The archpickmmaplayout function in arch/x86/mm/mmap.c in the Linux kernel through 4.5.2 does not properly randomize the legacy base address, which makes it easier for local users to defeat the intended restrictions on the ADDRNORANDOMIZE flag, and bypass the ASLR protection mechanism for a setuid...

Medium: kernel

Issue Overview: An integer overflow vulnerability was found in xtalloctableinfo, which on 32-bit systems can lead to small structure allocation and a copyfromuser based heap corruption. CVE-2016-3135 In the marksourcechains function net/ipv4/netfilter/iptables.c it is possible for a user-supplied...

CVE-2016-3672

The archpickmmaplayout function in arch/x86/mm/mmap.c in the Linux kernel through 4.5.2 does not properly randomize the legacy base address, which makes it easier for local users to defeat the intended restrictions on the ADDRNORANDOMIZE flag, and bypass the ASLR protection mechanism for a setuid...

Metaphor - Stagefright with ASLR bypass

Metaphor - Stagefright with ASLR bypass By Hanan Be'er from NorthBit Ltd. Link to whitepaper: https://raw.githubusercontent.com/NorthBit/Public/master/NorthBit-Metaphor.pdf Metaphor's source code is now released! The source include a PoC that generates MP4 exploits in real-time and bypassing ASLR...