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Test ID:
Category:Red Hat Local Security Checks
Title:RedHat Security Advisory RHSA-2005:529

The remote host is missing updates announced in
advisory RHSA-2005:529.

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 allowed local unprivileged users to cause a denial of
service (system crash) or possibly gain privileges. 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 allow 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 allow 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

Please note that this update is available via
Red Hat Network. To use Red Hat Network, launch the Red
Hat Update Agent with the following command: up2date

Risk factor : High

CVSS Score:

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2005-0504
BugTraq ID: 12195
Debian Security Information: DSA-1067 (Google Search)
Debian Security Information: DSA-1069 (Google Search)
Debian Security Information: DSA-1070 (Google Search)
Debian Security Information: DSA-1082 (Google Search)
Common Vulnerability Exposure (CVE) ID: CVE-2005-0749
BugTraq ID: 12935
SGI Security Advisory: 20060402-01-U
XForce ISS Database: kernel-loadelflibrary-dos(19867)
Common Vulnerability Exposure (CVE) ID: CVE-2005-1263
BugTraq ID: 13589
Bugtraq: 20050511 Linux kernel ELF core dump privilege elevation (Google Search)
Common Vulnerability Exposure (CVE) ID: CVE-2004-1056
XForce ISS Database: linux-i810-dma-dos(15972)
CopyrightCopyright (c) 2005 E-Soft Inc.

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