Vulnerabilities > CVE-2009-2768 - NULL Pointer Dereference vulnerability in Linux Kernel

047910
CVSS 7.8 - HIGH
Attack vector
LOCAL
Attack complexity
LOW
Privileges required
LOW
Confidentiality impact
HIGH
Integrity impact
HIGH
Availability impact
HIGH
local
low complexity
linux
CWE-476
NVD
Published: 2009-08-14
Updated: 2024-02-09

Summary

The load_flat_shared_library function in fs/binfmt_flat.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 an access of an "uninitialized cred pointer."

Vulnerable Configurations

Part Description Count
OS
Linux
9

Common Weakness Enumeration (CWE)

Seebug

bulletinFamilyexploit
descriptionBUGTRAQ ID: 36037 CVE(CAN) ID: CVE-2009-2768 Linux Kernel是开放源码操作系统Linux所使用的内核。 Linux Kernel的flat子系统中fs/binfmt_flat.c文件的load_flat_shared_library函数存在空指针应用错误。如果本地用户执行了共享的flat二进制程序的话，就可以触发这个错误，导致系统崩溃。 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： http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=3440625d78711bee41a84cf29c3d8c579b522666
idSSV:12067
last seen2017-11-19
modified2009-08-18
published2009-08-18
reporterRoot
titleLinux Kernel binfmt_flat.c空指针引用拒绝服务漏洞

Statements

contributorMark J Cox
lastmodified2009-08-18
organizationRed Hat
statementNot vulnerable. This issue did not affect the versions of Linux kernel as shipped with Red Hat Enterprise Linux 3, 4, 5 or Red Hat Enterprise MRG. Red Hat does not provide support for flat binary support, and additionally this issue only affected kernels version 2.6.29-rc1 and later.

References