Linux Kernel IOPERM System Call I/O Port Access Vulnerability

BID:7600

Info

Linux Kernel IOPERM System Call I/O Port Access Vulnerability

Bugtraq ID: 7600
Class: Design Error
CVE: CVE-2003-0246
Remote: No
Local: Yes
Published: May 14 2003 12:00AM
Updated: Jul 11 2009 10:06PM
Credit: The discovery of this vulnerability has been credited to Martin J. Bligh.
Vulnerable: Sun Linux 5.0.5
Sun Linux 5.0.3
Sun Linux 5.0
+ Sun LX50
Redhat kernel-utils-2.4-8.29.i386.rpm
Redhat kernel-utils-2.4-8.13.i386.rpm
+ Redhat Linux 8.0
Redhat kernel-utils-2.4-7.4.i386.rpm
+ Redhat Linux 7.3
Redhat kernel-uml-2.4.18-14.i686.rpm
+ Redhat Linux 8.0
Redhat kernel-source-2.4.7-10.i386.rpm
+ Redhat Linux 7.2
Redhat kernel-source-2.4.20-8.i386.rpm
+ Redhat Linux 9.0 i386
Redhat kernel-source-2.4.2-2.i386.rpm
+ Redhat Linux 7.1
Redhat kernel-source-2.4.18-3.i386.rpm
Redhat kernel-source-2.4.18-14.i386.rpm
Redhat kernel-smp-2.4.7-10.i686.rpm
+ Redhat Linux 7.2
Redhat kernel-smp-2.4.7-10.i586.rpm
+ Redhat Linux 7.2
Redhat kernel-smp-2.4.7-10.athlon.rpm
Redhat kernel-smp-2.4.20-8.i686.rpm
Redhat kernel-smp-2.4.20-8.athlon.rpm
+ Redhat Linux 9.0 i386
Redhat kernel-smp-2.4.2-2.i686.rpm
+ Redhat Linux 7.1
Redhat kernel-smp-2.4.2-2.i586.rpm
+ Redhat Linux 7.1
Redhat kernel-smp-2.4.18-3.i686.rpm
Redhat kernel-smp-2.4.18-3.i586.rpm
+ Redhat Linux 7.3
Redhat kernel-smp-2.4.18-3.athlon.rpm
Redhat kernel-smp-2.4.18-14.i686.rpm
+ Redhat Linux 8.0
Redhat kernel-smp-2.4.18-14.athlon.rpm
Redhat kernel-headers-2.4.7-10.i386.rpm
Redhat kernel-headers-2.4.2-2.i386.rpm
Redhat kernel-enterprise-2.4.2-2.i686.rpm
Redhat kernel-doc-2.4.7-10.i386.rpm
+ Redhat Linux 7.2
Redhat kernel-doc-2.4.20-8.i386.rpm
Redhat kernel-doc-2.4.2-2.i386.rpm
Redhat kernel-doc-2.4.18-3.i386.rpm
Redhat kernel-doc-2.4.18-14.i386.rpm
+ Redhat Linux 8.0
Redhat kernel-debug-2.4.18-3.i686.rpm
Redhat kernel-debug-2.4.18-14.i686.rpm
Redhat kernel-BOOT-2.4.7-10.i386.rpm
Redhat kernel-BOOT-2.4.20-8.i386.rpm
Redhat kernel-BOOT-2.4.2-2.i386.rpm
Redhat kernel-BOOT-2.4.18-3.i386.rpm
+ Redhat Linux 7.3
Redhat kernel-BOOT-2.4.18-14.i386.rpm
+ Redhat Linux 8.0
Redhat kernel-bigmem-2.4.20-8.i686.rpm
+ Redhat Linux 9.0 i386
Redhat kernel-bigmem-2.4.18-3.i686.rpm
+ Redhat Linux 7.3
Redhat kernel-bigmem-2.4.18-14.i686.rpm
+ Redhat Linux 8.0
Redhat kernel-2.4.7-10.i686.rpm
+ Redhat Linux 7.2
Redhat kernel-2.4.7-10.i386.rpm
Redhat kernel-2.4.7-10.athlon.rpm
Redhat kernel-2.4.20-8.i686.rpm
Redhat kernel-2.4.20-8.i586.rpm
+ Redhat Linux 9.0 i386
Redhat kernel-2.4.20-8.athlon.rpm
+ Redhat Linux 9.0 i386
Redhat kernel-2.4.2-2.i686.rpm
+ Redhat Linux 7.1
Redhat kernel-2.4.2-2.i586.rpm
Redhat kernel-2.4.2-2.i386.rpm
+ Redhat Linux 7.1
Redhat kernel-2.4.18-3.i686.rpm
+ Redhat Linux 7.3
Redhat kernel-2.4.18-3.i386.rpm
Redhat kernel-2.4.18-3.athlon.rpm
+ Redhat Linux 7.3
Redhat kernel-2.4.18-14.i686.rpm
Redhat kernel-2.4.18-14.i586.rpm
+ Redhat Linux 8.0
Redhat kernel-2.4.18-14.athlon.rpm
Mandriva Linux Mandrake 9.1 ppc
Mandriva Linux Mandrake 9.1
Mandriva Linux Mandrake 9.0
Mandriva Linux Mandrake 8.2 ppc
Mandriva Linux Mandrake 8.2
MandrakeSoft Single Network Firewall 7.2
MandrakeSoft Corporate Server 2.1
Linux kernel 2.5.69
Linux kernel 2.5.68
Linux kernel 2.5.67
Linux kernel 2.5.66
Linux kernel 2.5.65
Linux kernel 2.5.64
Linux kernel 2.5.63
Linux kernel 2.5.62
Linux kernel 2.5.61
Linux kernel 2.5.60
Linux kernel 2.5.59
Linux kernel 2.5.58
Linux kernel 2.5.57
Linux kernel 2.5.56
Linux kernel 2.5.55
Linux kernel 2.5.54
Linux kernel 2.5.53
Linux kernel 2.5.52
Linux kernel 2.5.51
Linux kernel 2.5.50
Linux kernel 2.5.49
Linux kernel 2.5.48
Linux kernel 2.5.47
Linux kernel 2.5.46
Linux kernel 2.5.45
Linux kernel 2.5.44
Linux kernel 2.5.43
Linux kernel 2.5.42
Linux kernel 2.5.41
Linux kernel 2.5.40
Linux kernel 2.5.39
Linux kernel 2.5.38
Linux kernel 2.5.37
Linux kernel 2.5.36
Linux kernel 2.5.35
Linux kernel 2.5.34
Linux kernel 2.5.33
Linux kernel 2.5.32
Linux kernel 2.5.31
Linux kernel 2.5.30
Linux kernel 2.5.29
Linux kernel 2.5.28
Linux kernel 2.5.27
Linux kernel 2.5.26
Linux kernel 2.5.25
Linux kernel 2.5.24
Linux kernel 2.5.23
Linux kernel 2.5.22
Linux kernel 2.5.21
Linux kernel 2.5.20
Linux kernel 2.5.19
Linux kernel 2.5.18
Linux kernel 2.5.17
Linux kernel 2.5.16
Linux kernel 2.5.15
Linux kernel 2.5.14
Linux kernel 2.5.13
Linux kernel 2.5.12
Linux kernel 2.5.11
Linux kernel 2.5.10
Linux kernel 2.5.9
Linux kernel 2.5.8
Linux kernel 2.5.7
Linux kernel 2.5.6
Linux kernel 2.5.5
Linux kernel 2.5.4
Linux kernel 2.5.3
Linux kernel 2.5.2
Linux kernel 2.5.1
Linux kernel 2.5 .0
Linux kernel 2.4.21 pre4
+ Mandriva Linux Mandrake 9.1 ppc
+ Mandriva Linux Mandrake 9.1
Linux kernel 2.4.20
+ CRUX CRUX Linux 1.0
+ Gentoo Linux 1.4
+ Gentoo Linux 1.2
+ Redhat Linux 9.0 i386
+ Slackware Linux 9.0
+ WOLK WOLK 4.4 s
Linux kernel 2.4.19
Linux kernel 2.4.18 x86
Linux kernel 2.4.18
Linux kernel 2.4.17
Linux kernel 2.4.16
Linux kernel 2.4.15
Linux kernel 2.4.14
Linux kernel 2.4.13
+ Caldera OpenLinux Server 3.1.1
+ Caldera OpenLinux Workstation 3.1.1
Linux kernel 2.4.12
Linux kernel 2.4.11
Linux kernel 2.4.10
+ SuSE Linux 7.3
Linux kernel 2.4.9
Linux kernel 2.4.8
Linux kernel 2.4.7
+ Redhat Linux 7.2
+ SuSE Linux 7.2
+ SuSE Linux 7.1
Linux kernel 2.4.6
Linux kernel 2.4.5
+ Slackware Linux 8.0
Linux kernel 2.4.4
Linux kernel 2.4.3
Linux kernel 2.4.2
+ Caldera OpenLinux Server 3.1
+ Caldera OpenLinux Workstation 3.1
+ Redhat Linux 7.1 i386
+ Redhat Linux 7.1 alpha
Linux kernel 2.4.1
Linux kernel 2.4
Not Vulnerable: Sun Linux 5.0.6

Discussion

Linux Kernel IOPERM System Call I/O Port Access Vulnerability

A vulnerability has been discovered in the ioperm system call for Linux. Due to a programming error, permissions may not be correctly configured on I/O ports used by a process. As a result, an unprivileged local user may be capable of reading and writing to I/O port addresses which they would not normally have access to.

Exploit / POC

Linux Kernel IOPERM System Call I/O Port Access Vulnerability

No exploit required.

A proof of concept has been made available. See referenced advisory.

Solution / Fix

Linux Kernel IOPERM System Call I/O Port Access Vulnerability

Solution:
Mandrake Linux have released a security advisory (MDKSA-2003:074) to address this issue. Further details regarding downloading and applying these fixes can be found in the referenced advisory. Fixes are linked below.

Mandrake has issued a kernel upgrade that is patched. Please see the advisory linked to in the reference section (MDKSA-2003:066-1) for further information.

Red Hat has released advisory RHSA-2003:172-00 and fixes to address this issue. See referenced advisory for additional details.

EnGarde has released an advisory. Information about obtaining fixes can be found in the referenced advisory (ESA-20030515-017).

Conectiva has released advisory CLSA-2003:657 to address this issue.

Red Hat Linux has released a new advisory RHSA-2003:187-01. Affected users are advised to upgrade to newer kernel packages. Further information is available in the referenced advisory.

Debian has issued a kernel upgrade that is patched. Please see the advisories linked to in the reference section (DSA-311-1 and DSA 312-1) for URLs to fixes.

Debian has released a new advisory DSA 332-1. Information about obtaining and applying fixes can be found in the referenced advisory.

Debian has announced in DSA 336-2 that advisory DSA 336-1 does not address this issue.

Conectiva has released advisory CLA-2003:701 to address this issue. See referenced advisory for additional details and fix information.

Gentoo has released advisory 200308-01 to address this issue. Affected users are advised to execute the following commands:

emerge sync
emerge gentoo-sources
emerge clean

RHBA-2003:263-05 (for non-Enterprise Red Hat distributions) has been released to address unrelated bugs but provides Kernel updates that include more recent fixes for this and other security vulnerabilities.

Conectiva has released a security advisory (CLA-2003:796) containing fixes to address this issue in Conectiva Linux 8.

Debian has released DSA 442-1 to provide fixes for s390 platforms. Please see the attached advisory for further information.


Redhat kernel-bigmem-2.4.18-14.i686.rpm

Redhat kernel-2.4.20-8.athlon.rpm

Redhat kernel-source-2.4.2-2.i386.rpm

Redhat kernel-2.4.20-8.i586.rpm

Redhat kernel-2.4.7-10.i686.rpm

Redhat kernel-bigmem-2.4.20-8.i686.rpm

Redhat kernel-source-2.4.20-8.i386.rpm

Redhat kernel-BOOT-2.4.18-3.i386.rpm

Redhat kernel-doc-2.4.18-14.i386.rpm

Redhat kernel-2.4.18-3.athlon.rpm

Redhat kernel-bigmem-2.4.18-3.i686.rpm

Redhat kernel-source-2.4.7-10.i386.rpm

Redhat kernel-2.4.18-14.i586.rpm

Redhat kernel-BOOT-2.4.18-14.i386.rpm

Redhat kernel-2.4.2-2.i686.rpm

Redhat kernel-doc-2.4.7-10.i386.rpm

Redhat kernel-2.4.18-3.i686.rpm

Redhat kernel-2.4.2-2.i386.rpm

MandrakeSoft Corporate Server 2.1

Linux kernel 2.4.17

Linux kernel 2.4.20

Linux kernel 2.4.21 pre4

Sun Linux 5.0

Sun Linux 5.0.5

Mandriva Linux Mandrake 8.2 ppc

Mandriva Linux Mandrake 9.0

Mandriva Linux Mandrake 9.1

References

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