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SuSE-SA:2004:005: Linux Kernel

high Nessus Plugin ID 13823

Synopsis

The remote host is missing a vendor-supplied security patch

Description

The remote host is missing the patch for the advisory SuSE-SA:2004:005 (Linux Kernel).


Another bug in the Kernel's do_mremap() function, which is unrelated to the bug fixed in SuSE-SA:2004:001, was found by Paul Starzetz.
The do_mremap() function of the Linux Kernel is used to manage Virtual Memory Areas (VMAs) which includes moving, removing and resizing of memory areas. To remove old memory areas do_mremap() uses the function du_munmap() without checking the return value.
By forcing do_munmap() to return an error the memory management of a process can be tricked into moving page table entries from one VMA to another. The destination VMA may be protected by a different ACL which enables a local attacker to gain write access to previous read-only pages.
The result will be local root access to the system.

Additionally to the bug mentioned above some other bugs were fixed (depending on architecture) that can cause local denial-of-service conditions:
- Vicam USB driver: CVE-2004-0075 + denial-of-service due to problem while copying data from user to kernel space
- Direct Render Infrastructure: CVE-2004-0003 + denial-of-service due to integer overflow + needs r128 card and console to be exploited
- ncpfs/ncp_lookup: CVE-2004-0010 + buffer overflow with the probability to gain root
- execve():
+ malformed elf binaries can lead to a local denial-of-service attack

Solution

http://www.suse.de/security/2004_05_linux_kernel.html

Plugin Details

Severity: High

ID: 13823

File Name: suse_SA_2004_005.nasl

Version: 1.21

Agent: unix

Published: 7/25/2004

Updated: 1/14/2021

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: High

Score: 8.9

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.6

Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C

Vulnerability Information

Required KB Items: Host/SuSE/rpm-list

Exploit Available: true

Exploit Ease: Exploits are available

Reference Information

CVE: CVE-2004-0003, CVE-2004-0010, CVE-2004-0075, CVE-2004-0077

BID: 9570, 9690, 9691