Mozilla Falls Short on Firefox ASLR Implementation

Like Apple’s Safari, the open-source Mozilla Firefox browser does not properly implement ASLR, a key anti-exploit mitigation that can limit the damage from hacker attacks. Nils, the U.K.-based researcher who compromised a Windows machine running Firefox for the second year in a row told me it’s...

CORE-2009-0803: Virtual PC Hypervisor Memory Protection Vulnerability

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Core Security Technologies - CoreLabs Advisory http://www.coresecurity.com/corelabs/ Virtual PC Hypervisor Memory Protection Vulnerability 1. Advisory Information Title: Virtual PC Hypervisor Memory Protection Vulnerability Advisory Id: CORE-2009-0803...

Virtual PC Hypervisor - Memory Protection

Virtual PC Hypervisor - Memory Protection -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Core Security Technologies - CoreLabs Advisory http://www.coresecurity.com/corelabs/ Virtual PC Hypervisor Memory Protection Vulnerability 1. Advisory Information Title: Virtual PC Hypervisor Memory Protection...

kernel: personality: fix PER_CLEAR_ON_SETID

The personality subsystem in the Linux kernel before 2.6.31-rc3 has a PERCLEARONSETID setting that does not clear the ADDRCOMPATLAYOUT and MMAPPAGEZERO flags when executing a setuid or setgid program, which makes it easier for local users to leverage the details of memory usage to 1 conduct NULL...

kernel: personality: fix PER_CLEAR_ON_SETID

The personality subsystem in the Linux kernel before 2.6.31-rc3 has a PERCLEARONSETID setting that does not clear the ADDRCOMPATLAYOUT and MMAPPAGEZERO flags when executing a setuid or setgid program, which makes it easier for local users to leverage the details of memory usage to 1 conduct NULL...

Mandriva Linux Security Advisory : kernel (MDVSA-2009:289)

Some vulnerabilities were discovered and corrected in the Linux 2.6 kernel : The personality subsystem in the Linux kernel before 2.6.31-rc3 has a PERCLEARONSETID setting that does not clear the ADDRCOMPATLAYOUT and MMAPPAGEZERO flags when executing a setuid or setgid program, which makes it easi...

USN-852-1: Linux kernel vulnerabilities

Solar Designer discovered that the z90crypt driver did not correctly check capabilities. A local attacker could exploit this to shut down the device, leading to a denial of service. Only affected Ubuntu 6.06. CVE-2009-1883 Michael Buesch discovered that the SGI GRU driver did not correctly check...

kernel: personality: fix PER_CLEAR_ON_SETID

The personality subsystem in the Linux kernel before 2.6.31-rc3 has a PERCLEARONSETID setting that does not clear the ADDRCOMPATLAYOUT and MMAPPAGEZERO flags when executing a setuid or setgid program, which makes it easier for local users to leverage the details of memory usage to 1 conduct NULL...

RedHat Security Advisory RHSA-2009:1438

The remote host is missing updates to the Linux kernel announced in advisory RHSA-2009:1438. This update fixes the following security issues: the ADDRCOMPATLAYOUT and MMAPPAGEZERO flags were not cleared when a setuid or setgid program was executed. A local, unprivileged user could use this flaw t...

Null pointer dereference

The personality subsystem in the Linux kernel before 2.6.31-rc3 has a PERCLEARONSETID setting that does not clear the ADDRCOMPATLAYOUT and MMAPPAGEZERO flags when executing a setuid or setgid program, which makes it easier for local users to leverage the details of memory usage to 1 conduct NULL...

Linux Kernel PER_CLEAR_ON_SETID绕过安全限制漏洞

BUGTRAQ ID: 35647 Linux Kernel是开放源码操作系统Linux所使用的内核。 Linux Kernel的PERCLEARONSETID mask没有包含有MMAPPAGEZERO和ADDRCOMPATLAYOUT，这可能允许本地用户绕过mmapminaddr保护，或禁用某些ASLR（地址空间布局随机化）功能。 Linux kernel 2.6.x 厂商补丁： Linux ----- 目前厂商已经发布了升级补丁以修复这个安全问题，请到厂商的主页下载：...

New attack class exploits intranet weaknesses

A security researcher has developed an interesting new class of attacks that exploit the problems caused by organizations using non-routable IP space on their internal networks, including one attack that compromises VPN users through the use of a persistent JavaScript backdoor. The attacks rely o...

Positron Security Advisory #2009-001: Memcached and MemcacheDB ASLR Bypass Weakness

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 POSITRON SECURITY LLC http://www.positronsecurity.com/ Security Advisory 2009-001 Memcached and MemcacheDB ASLR Bypass Weakness Author: Joe Testa jt atsign positronsecuritydotcom Date: April 28th, 2009 URL:...

Buffer overflow attack-vulnerability warning-the black bar safety net

Buffer overflow is a variousoperating system, application software widespread common and dangerous vulnerability, using a buffer overflow attack may cause a program to fail, system crash and other consequences. More seriously, you can use it to perform unauthorized instructions, and even acquire...

Debian Security Advisory DSA 403-1 (kernel-image-2.4.18-1-alpha, kernel-image-2.4.18-1-i386, kernel-source-2.4.18)

The remote host is missing an update to kernel-image-2.4.18-1-alpha, kernel-image-2.4.18-1-i386, kernel-source-2.4.18 announced via advisory DSA 403-1. SPDX-FileCopyrightText: 2008 E-Soft Inc. Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respecti...

CVE-2007-3850

The eHCA driver in Linux kernel 2.6 before 2.6.22, when running on PowerPC, does not properly map userspace resources, which allows local users to read portions of physical address space...

CVE-2007-3850

The eHCA driver in Linux kernel 2.6 before 2.6.22, when running on PowerPC, does not properly map userspace resources, which allows local users to read portions of physical address space...

CVE-2007-3850

The eHCA driver in Linux kernel 2.6 before 2.6.22, when running on PowerPC, does not properly map userspace resources, which allows local users to read portions of physical address space...

Linux Kernel eHCA驱动物理地址空间信息泄露漏洞

Linux是一款开放源代码的操作系统。 Linux包含的eHCA驱动在映射用户空间资源时存在问题，本地攻击者可以利用漏洞获得物理地址等敏感信息。 部分驱动包含的资源映射到用户空间的大小为4K，如果内核配置使用64K的页，那么在映射过程中会超过60K大小的物理地址空间映射到用户空间，导致敏感信息泄露。 RedHat Enterprise Linux Desktop v.5 client RedHat Enterprise Linux v. 5 server Linux kernel 2.6.18 .4 Linux kernel 2.6.18 .3 Linux kernel 2.6.18 ....

CheckPoint Secure Platform Multiple Buffer Overflows

Hi all, we have published a paper about CheckPoint Firewall-1 vulnerabilities. The platform tested is the Secure Platform R60. We have found many buffer overflows. Most of them are located in command line utilities that can be exploited locally. A very few of them maybe can be exploited remotely,...