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Last updated: 11/20/2014 3:44:50 PM

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National Cyber Awareness System

Vulnerability Summary for CVE-2007-4573

Original release date: 09/24/2007
Last revised: 03/07/2011
Source: US-CERT/NIST

Overview

The IA32 system call emulation functionality in Linux kernel 2.4.x and 2.6.x before 2.6.22.7, when running on the x86_64 architecture, does not zero extend the eax register after the 32bit entry path to ptrace is used, which might allow local users to gain privileges by triggering an out-of-bounds access to the system call table using the %RAX register.

Impact

CVSS Severity (version 2.0):
CVSS v2 Base Score: 7.2 (HIGH) (AV:L/AC:L/Au:N/C:C/I:C/A:C) (legend)
Impact Subscore: 10.0
Exploitability Subscore: 3.9
CVSS Version 2 Metrics:
Access Vector: Locally exploitable
Access Complexity: Low
Authentication: Not required to exploit
Impact Type: Allows unauthorized disclosure of information; Allows unauthorized modification; Allows disruption of service

Vendor Statements (disclaimer)

Official Statement from Red Hat (09/27/2007)
This issue affected users who were running 64-bit versions of Red Hat Enterprise Linux 3, 4, or 5 on x86_64 architecture. It did not affect users of Red Hat Enterprise Linux 2.1. Updates are available for Red Hat Enterprise Linux 3, 4, and 5 to correct this issue. New kernel packages along with our advisory are available at the URL below as well as via the Red Hat Network. http://rhn.redhat.com/errata/CVE-2007-4573.html

References to Advisories, Solutions, and Tools

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External Source: FULLDISC
Name: 20070924 COSEINC Linux Advisory #2: IA32 System Call
External Source: MLIST
Name: [linux-kernel] 20070921 Re: Linux 2.6.22.7
External Source: MANDRIVA
Name: MDVSA-2008:008
External Source: FEDORA
Name: FEDORA-2007-2298
External Source: SECTRACK
Name: 1018748
External Source: MLIST
Name: [linux-kernel] 20070921 Linux 2.6.22.7
Type: Patch Information
External Source: CONFIRM
Name: http://kernel.org/pub/linux/kernel/v2.4/ChangeLog-2.4.35.3
External Source: SECUNIA
Name: 26917
External Source: DEBIAN
Name: DSA-1381
External Source: SECUNIA
Name: 26995
External Source: SECUNIA
Name: 26994
External Source: DEBIAN
Name: DSA-1504
External Source: SECUNIA
Name: 29058
External Source: REDHAT
Name: RHSA-2007:0936
External Source: UBUNTU
Name: USN-518-1
External Source: SUSE
Name: SUSE-SA:2007:064
External Source: VUPEN
Name: ADV-2007-3246
External Source: REDHAT
Name: RHSA-2007:0937
External Source: MANDRIVA
Name: MDKSA-2007:196
External Source: SUSE
Name: SUSE-SA:2007:053
External Source: BUGTRAQ
Name: 20070924 COSEINC Linux Advisory #2: IA32 System Call Emulation Vulnerability
External Source: CONFIRM
Name: https://issues.rpath.com/browse/RPL-1754
External Source: OVAL
Name: oval:org.mitre.oval:def:9735
External Source: MANDRIVA
Name: MDVSA-2008:105
External Source: FEDORA
Name: FEDORA-2007-712
External Source: BID
Name: 25774
External Source: SECUNIA
Name: 27212
External Source: REDHAT
Name: RHSA-2007:0938
External Source: SECUNIA
Name: 26955
External Source: MANDRIVA
Name: MDKSA-2007:195
External Source: SECUNIA
Name: 26919
External Source: DEBIAN
Name: DSA-1378
External Source: SECUNIA
Name: 26953
External Source: SECUNIA
Name: 26978
External Source: CONFIRM
Name: http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.22.7
External Source: SECUNIA
Name: 26934
External Source: SECUNIA
Name: 27227
External Source: SECUNIA
Name: 27912
External Source: BUGTRAQ
Name: 20070926 Re: COSEINC Linux Advisory #2: IA32 System CallEmulation Vulnerability

References to Check Content

Identifier: oval:org.mitre.oval:def:9735
Check System: http://oval.mitre.org/XMLSchema/oval-definitions-5

Vulnerable software and versions

+ Configuration 1
+ OR
* cpe:/o:linux:linux_kernel:2.4.35::x86_64 and previous versions
* cpe:/o:linux:linux_kernel:2.6.22.6::x86_64 and previous versions

* Denotes Vulnerable Software
Changes related to vulnerability configurations

Technical Details

Vulnerability Type (View All)
  • Permissions, Privileges, and Access Control (CWE-264)