Linux Kernel 64位Personality处理本地拒绝服务漏洞

BUGTRAQ ID: 38027 Linux Kernel是开放源码操作系统Linux所使用的内核。 Linux Kernel在设置进程的personality时存在错误，本地用户在执行缺少ELF解释器的64位应用时可能触发分段错误，导致内核崩溃。 漏洞起因是fs/binfmtelf.c文件中的loadelfbinary函数，该函数在检查ELF解释器可用之前调用了 SETPERSONALITY，将之前的32位进程转换为了64位进程。如果execve成功，这不会导致问题，但在...

kernel: create_elf_tables can leave urandom in a bad state

Use-after-free vulnerability in the fasynchelper function in fs/fcntl.c in the Linux kernel before 2.6.33-rc4-git1 allows local users to gain privileges via vectors that include enabling OASYNC aka FASYNC or FIOASYNC on a locked file, and then closing this file...

CVE-2009-4141: Undefined Security Weakness

Use-after-free vulnerability in the fasynchelper function in fs/fcntl.c in the Linux kernel before 2.6.33-rc4-git1 allows local users to gain privileges via vectors that include enabling OASYNC aka FASYNC or FIOASYNC on a locked file, and then closing this file...

CVE-2009-4410: Undefined Security Weakness

The fuseioctlcopyuser function in the ioctl handler in fs/fuse/file.c in the Linux kernel 2.6.29-rc1 through 2.6.30.y uses the wrong variable in an argument to the kunmap function, which allows local users to cause a denial of service panic via unknown vectors...

CVE-2009-4308: Undefined Security Weakness

The ext4decodeerror function in fs/ext4/super.c in the ext4 filesystem in the Linux kernel before 2.6.32 allows user-assisted remote attackers to cause a denial of service NULL pointer dereference, and possibly have unspecified other impact, via a crafted read-only filesystem that lacks a journal...

CVE-2009-4307: Undefined Security Weakness

The ext4fillflexinfo function in fs/ext4/super.c in the Linux kernel before 2.6.32-git6 allows user-assisted remote attackers to cause a denial of service divide-by-zero error and panic via a malformed ext4 filesystem containing a super block with a large FLEXBG group size aka sloggroupsperflex...

CVE-2009-3547

Multiple race conditions in fs/pipe.c in the Linux kernel before 2.6.32-rc6 allow local users to cause a denial of service NULL pointer dereference and system crash or gain privileges by attempting to open an anonymous pipe via a /proc//fd/ pathname...

CVE-2009-3547

Multiple race conditions in fs/pipe.c in the Linux kernel before 2.6.32-rc6 allow local users to cause a denial of service NULL pointer dereference and system crash or gain privileges by attempting to open an anonymous pipe via a /proc//fd/ pathname...

CVE-2009-3547: Concurrent Execution using Shared Resource with Improper Synchronization

Multiple race conditions in fs/pipe.c in the Linux kernel before 2.6.32-rc6 allow local users to cause a denial of service NULL pointer dereference and system crash or gain privileges by attempting to open an anonymous pipe via a /proc//fd/ pathname...

CVE-2009-2691: Exposure of Sensitive Information to an Unauthorized Actor

The mmformaps function in fs/proc/base.c in the Linux kernel 2.6.30.4 and earlier allows local users to read 1 maps and 2 smaps files under proc/ via vectors related to ELF loading, a setuid process, and a race condition...

CVE-2009-2768: NULL Pointer Dereference

The loadflatsharedlibrary function in fs/binfmtflat.c in the flat subsystem in the Linux kernel before 2.6.31-rc6 allows local users to cause a denial of service NULL pointer dereference and system crash or possibly have unspecified other impact by executing a shared flat binary, which triggers a...

Linux Kernel 'fs/proc/base.c'本地信息泄漏漏洞

Bugraq ID: 36019 CVE ID：CVE-2009-2691 Linux是一款开放源代码的操作系统。 fs/proc/base.c文件包含的"mmformaps"函数存在错误，攻击者可以利用这个漏洞在setuid进程启动时从"/proc"文件系统中获得"maps"和"smaps"文件的内容信息。造成敏感信息泄漏。 Linux kernel 2.6.31 -rc3 + Trustix Secure Enterprise Linux 2.0 + Trustix Secure Linux 2.2 + Trustix Secure Linux 2.1 + Trustix Secur...

kernel security and bug fix update

2.6.18-128.4.1.0.1.el5 - NET Add entropy support to e1000 and bnx2 John Sobecki,Guru Anbalagane orabug 6045759 - MM shrink zone patch John Sobecki,Chris Mason orabug 6086839 - NET Add xen pv/bonding netconsole support Tina yang orabug 6993043 bz 7258 - nfs convert ENETUNREACH to ENOTCONN Guru...

CVE-2009-2407: Improper Restriction of Operations within the Bounds of a Memory Buffer

Heap-based buffer overflow in the parsetag3packet function in fs/ecryptfs/keystore.c in the eCryptfs subsystem in the Linux kernel before 2.6.30.4 allows local users to cause a denial of service system crash or possibly gain privileges via vectors involving a crafted eCryptfs file, related to a...

CVE-2009-2406: Improper Restriction of Operations within the Bounds of a Memory Buffer

Stack-based buffer overflow in the parsetag11packet function in fs/ecryptfs/keystore.c in the eCryptfs subsystem in the Linux kernel before 2.6.30.4 allows local users to cause a denial of service system crash or possibly gain privileges via vectors involving a crafted eCryptfs file, related to n...

CVE-2009-1961: Improper Locking

The inode double locking code in fs/ocfs2/file.c in the Linux kernel 2.6.30 before 2.6.30-rc3, 2.6.27 before 2.6.27.24, 2.6.29 before 2.6.29.4, and possibly other versions down to 2.6.19 allows local users to cause a denial of service prevention of file creation and removal via a series of splice...

Solaris Update for /usr/lib/fs/ufs/ufsrestore 109092-10

Check for the Version of /usr/lib/fs/ufs/ufsrestore OpenVAS Vulnerability Test Solaris Update for /usr/lib/fs/ufs/ufsrestore 109092-10 Authors: System Generated Check Copyright: Copyright c 2009 Greenbone Networks GmbH, http://www.greenbone.net This program is free software; you can redistribute ...

Solaris Update for /kernel/fs/hsfs 109765-06

Check for the Version of /kernel/fs/hsfs OpenVAS Vulnerability Test Solaris Update for /kernel/fs/hsfs 109765-06 Authors: System Generated Check Copyright: Copyright c 2009 Greenbone Networks GmbH, http://www.greenbone.net This program is free software; you can redistribute it and/or modify it...

Solaris Update for /usr/kernel/fs/namefs 114984-02

Check for the Version of /usr/kernel/fs/namefs OpenVAS Vulnerability Test Solaris Update for /usr/kernel/fs/namefs 114984-02 Authors: System Generated Check Copyright: Copyright c 2009 Greenbone Networks GmbH, http://www.greenbone.net This program is free software; you can redistribute it and/or...

Solaris Update for /usr/lib/fs/ufs/ufsrestore 109092-10

Check for the Version of /usr/lib/fs/ufs/ufsrestore OpenVAS Vulnerability Test Solaris Update for /usr/lib/fs/ufs/ufsrestore 109092-10 Authors: System Generated Check Copyright: Copyright c 2009 Greenbone Networks GmbH, http://www.greenbone.net This program is free software; you can redistribute ...