Vulnerability Assessment & Network Security Forums
If through a vulnerability assessment, a network security issue is detected for the vulnerability below, applying the appropriate security patches in a timely matter is very important. If you have detected that your system has already been compromised, following CERT's Network Security recovery document will assist with recommended steps for system recovery.
Vulnerability Assessment Details
Check for the version of the kernel packages
Detailed Explanation for this Vulnerability Assessment
Updated kernel packages that fix a number of security issues as well as
other bugs are now available for Red Hat Enterprise Linux 2.1 (32 bit
This update 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.
This is a kernel maintenance update to Red Hat Enterprise Linux 2.1.
The following security issues were corrected:
A flaw between execve() syscall handling and core dumping of ELF-format
executables permited local unprivileged users to cause a denial of
service (system crash) or possibly gain rights. The Common
Vulnerabilities and Exposures project has assigned the name CVE-2005-1263
to this issue.
A flaw when freeing a pointer in load_elf_library was discovered. A local
user could potentially use this flaw to cause a denial of service (crash).
The Direct Rendering Manager (DRM) driver did not properly check the DMA
lock, which could permit remote attackers or local users to cause a denial
of service (X Server crash) or possibly modify the video output.
A flaw in the moxa serial driver could permit a local user to perform
privileged operations such as replacing the firmware. (CVE-2005-0504)
The following bug fixes were also made:
- Fix a race condition that can cause a panic in __get_lease()
- Fix a race condition that can cause a panic when reading /proc/mdstat
- Fix incorrect ide accounting
- Prevent non-root users from reloading moxa driver firmware
- Fix a null-pointer-dereference bug in rpciod
- Fix legacy-usb handoff for certain IBM platforms
- Fix a bug that caused busy inodes after unmount
- Provide an additional fix for a memory leak in scsi_scan_single.
- Fix a potential kswapd/dquot deadlock.
- Fix a potential local DoS in shmemfs.
- Fix a random poolsize vulnerability.
Red Hat Enterprise Linux 2.1 users are advised to upgrade their kernels to
the packages associated with their machine configurations as listed in this
Solution : http://rhn.redhat.com/errata/RHSA-2005-529.html
Network Security Threat Level: High
Networks Security ID:
Vulnerability Assessment Copyright: This script is Copyright (C) 2005 Tenable Network Security
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