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National Cyber-Alert System

Vulnerability Summary for CVE-2007-4573

Original release date:09/24/2007
Last revised:09/05/2008
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:Provides administrator access, Allows complete confidentiality, integrity, and availability violation; Allows unauthorized disclosure of information; Allows disruption of service

Vendor Statments (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: MLIST
Name: [linux-kernel] 20070921 Linux 2.6.22.7
Type: Patch Information
Hyperlink:http://lkml.org/lkml/2007/9/21/512
External Source: CONFIRM
Name: http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.22.7
Hyperlink:http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.22.7
External Source: FULLDISC
Name: 20070924 COSEINC Linux Advisory #2: IA32 System Call
Hyperlink:http://marc.info/?l=full-disclosure&m=119062587407908&w=2
External Source: MLIST
Name: [linux-kernel] 20070921 Re: Linux 2.6.22.7
Hyperlink:http://lkml.org/lkml/2007/9/21/513
External Source: FEDORA
Name: FEDORA-2007-712
Hyperlink:https://www.redhat.com/archives/fedora-package-announce/2007-September/msg00355.html
External Source: CONFIRM
Name: https://issues.rpath.com/browse/RPL-1754
Hyperlink:https://issues.rpath.com/browse/RPL-1754
External Source: UBUNTU
Name: USN-518-1
Hyperlink:http://www.ubuntu.com/usn/usn-518-1
External Source: BID
Name: 25774
Hyperlink:http://www.securityfocus.com/bid/25774
External Source: BUGTRAQ
Name: 20070926 Re: COSEINC Linux Advisory #2: IA32 System CallEmulation Vulnerability
Hyperlink:http://www.securityfocus.com/archive/1/archive/1/480705/100/0/threaded
External Source: BUGTRAQ
Name: 20070924 COSEINC Linux Advisory #2: IA32 System Call Emulation Vulnerability
Hyperlink:http://www.securityfocus.com/archive/1/archive/1/480451/100/0/threaded
External Source: REDHAT
Name: RHSA-2007:0938
Hyperlink:http://www.redhat.com/support/errata/RHSA-2007-0938.html
External Source: REDHAT
Name: RHSA-2007:0937
Hyperlink:http://www.redhat.com/support/errata/RHSA-2007-0937.html
External Source: REDHAT
Name: RHSA-2007:0936
Hyperlink:http://www.redhat.com/support/errata/RHSA-2007-0936.html
External Source: SUSE
Name: SUSE-SA:2007:053
Hyperlink:http://www.novell.com/linux/security/advisories/2007_53_kernel.html
External Source: MANDRIVA
Name: MDVSA-2008:105
Hyperlink:http://www.mandriva.com/security/advisories?name=MDVSA-2008:105
External Source: MANDRIVA
Name: MDVSA-2008:008
Hyperlink:http://www.mandriva.com/security/advisories?name=MDVSA-2008:008
External Source: MANDRIVA
Name: MDKSA-2007:196
Hyperlink:http://www.mandriva.com/security/advisories?name=MDKSA-2007:196
External Source: MANDRIVA
Name: MDKSA-2007:195
Hyperlink:http://www.mandriva.com/security/advisories?name=MDKSA-2007:195
External Source: VUPEN
Name: ADV-2007-3246
Hyperlink:http://www.frsirt.com/english/advisories/2007/3246
External Source: DEBIAN
Name: DSA-1504
Hyperlink:http://www.debian.org/security/2008/dsa-1504
External Source: DEBIAN
Name: DSA-1381
Hyperlink:http://www.debian.org/security/2007/dsa-1381
External Source: DEBIAN
Name: DSA-1378
Hyperlink:http://www.debian.org/security/2007/dsa-1378
External Source: SECTRACK
Name: 1018748
Hyperlink:http://securitytracker.com/id?1018748
External Source: SECUNIA
Name: 29058
Hyperlink:http://secunia.com/advisories/29058
External Source: SECUNIA
Name: 27912
Hyperlink:http://secunia.com/advisories/27912
External Source: SECUNIA
Name: 27227
Hyperlink:http://secunia.com/advisories/27227
External Source: SECUNIA
Name: 27212
Hyperlink:http://secunia.com/advisories/27212
External Source: SECUNIA
Name: 26995
Hyperlink:http://secunia.com/advisories/26995
External Source: SECUNIA
Name: 26994
Hyperlink:http://secunia.com/advisories/26994
External Source: SECUNIA
Name: 26978
Hyperlink:http://secunia.com/advisories/26978
External Source: SECUNIA
Name: 26955
Hyperlink:http://secunia.com/advisories/26955
External Source: SECUNIA
Name: 26953
Hyperlink:http://secunia.com/advisories/26953
External Source: SECUNIA
Name: 26934
Hyperlink:http://secunia.com/advisories/26934
External Source: SECUNIA
Name: 26919
Hyperlink:http://secunia.com/advisories/26919
External Source: SECUNIA
Name: 26917
Hyperlink:http://secunia.com/advisories/26917
External Source: SUSE
Name: SUSE-SA:2007:064
Hyperlink:http://lists.opensuse.org/opensuse-security-announce/2007-12/msg00001.html
External Source: CONFIRM
Name: http://kernel.org/pub/linux/kernel/v2.4/ChangeLog-2.4.35.3
Hyperlink:http://kernel.org/pub/linux/kernel/v2.4/ChangeLog-2.4.35.3
External Source: FEDORA
Name: FEDORA-2007-2298
Hyperlink:http://fedoranews.org/updates/FEDORA-2007-229.shtml

Vulnerable software and versions

Nav control imageConfiguration 1
spacerNav control imageOR
spacerspacerNav control image* cpe:/o:linux:linux_kernel:2.4.35::x86_64 and previous versions
spacerspacerNav control image* 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)
CVE Standard Vulnerability Entry:http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-4573