Updated kernel packages that fix several security issues in the Red Hat Enterprise Linux 4 kernel are now available.

This security advisory has been rated as having important security impact by the Red Hat Security Response Team.

The Linux kernel handles the basic functions of the operating system.

These new kernel packages contain fixes for the security issues described below :

  - a flaw in network IGMP processing that a allowed a     remote user on the local network to cause a denial of     service (disabling of multicast reports) if the system     is running multicast applications (CVE-2002-2185,     moderate)

  - a flaw which allowed a local user to write to firmware     on read-only opened /dev/cdrom devices (CVE-2004-1190,     moderate)

  - a flaw in gzip/zlib handling internal to the kernel that     may allow a local user to cause a denial of service     (crash) (CVE-2005-2458, low)

  - a flaw in procfs handling during unloading of modules     that allowed a local user to cause a denial of service     or potentially gain privileges (CVE-2005-2709, moderate)

  - a flaw in the SCSI procfs interface that allowed a local     user to cause a denial of service (crash)     (CVE-2005-2800, moderate)

  - a flaw in 32-bit-compat handling of the TIOCGDEV ioctl     that allowed a local user to cause a denial of service     (crash) (CVE-2005-3044, important)

  - a race condition when threads share memory mapping that     allowed local users to cause a denial of service     (deadlock) (CVE-2005-3106, important)

  - a flaw when trying to mount a non-hfsplus filesystem     using hfsplus that allowed local users to cause a denial     of service (crash) (CVE-2005-3109, moderate)

  - a minor info leak with the get_thread_area() syscall     that allowed a local user to view uninitialized kernel     stack data (CVE-2005-3276, low)

  - a flaw in mq_open system call that allowed a local user     to cause a denial of service (crash) (CVE-2005-3356,     important)

  - a flaw in set_mempolicy that allowed a local user on     some 64-bit architectures to cause a denial of service     (crash) (CVE-2005-3358, important)

  - a flaw in the auto-reap of child processes that allowed     a local user to cause a denial of service (crash)     (CVE-2005-3784, important)

  - a flaw in the IPv6 flowlabel code that allowed a local     user to cause a denial of service (crash)     (CVE-2005-3806, important)

  - a flaw in network ICMP processing that allowed a local     user to cause a denial of service (memory exhaustion)     (CVE-2005-3848, important)

  - a flaw in file lease time-out handling that allowed a     local user to cause a denial of service (log file     overflow) (CVE-2005-3857, moderate)

  - a flaw in network IPv6 xfrm handling that allowed a     local user to cause a denial of service (memory     exhaustion) (CVE-2005-3858, important)

  - a flaw in procfs handling that allowed a local user to     read kernel memory (CVE-2005-4605, important)

All Red Hat Enterprise Linux 4 users are advised to upgrade their kernels to the packages associated with their machine architectures and configurations as listed in this erratum.

The remote CentOS system is missing a security update which has been documented in Red Hat advisory RHSA-2006-0101.

ID	名稱	產品	系列	已發布	已更新	嚴重性
21977	CentOS 4 : kernel (CESA-2006:0101)	Nessus	CentOS Local Security Checks	2006/7/5	2021/1/4	high
20732	RHEL 4 : kernel (RHSA-2006:0101)	Nessus	Red Hat Local Security Checks	2006/1/17	2021/1/14	high
801413	CentOS RHSA-2006-0101 Security Check	Log Correlation Engine	Generic			high

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