__________________________________________________________
The U.S. Department of Energy
Computer Incident Advisory Capability
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__________________________________________________________
INFORMATION BULLETIN
Kernel Security Update
[Red Hat RHSA-2007:0936-2]
September 27, 2007 20:00 GMT Number R-360
[REVISED 27 Sept 2007]
[REVISED 28 Sept 2007]
______________________________________________________________________________
PROBLEM: A flaw was found in the IA32 system call emulation provided on
AMD64 and Intel 64 platforms.
PLATFORM: Red Hat Enterprise Linux (v. 5 server)
Red Hat Enterprise Linux Desktop (v. 5 client)
Ubunto 6.06 LTS
Ubunto 6.10
Ubunto 7.04
Debian GNU/Linux 4.0 (etch)
DAMAGE: An untrusted local user could exploit this flaw to run code in
the kernel (ie a root privilege escalation).
SOLUTION: Upgrade to the appropriate version.
______________________________________________________________________________
VULNERABILITY The risk is MEDIUM. An untrusted local user could gain root
ASSESSMENT: privileges.
______________________________________________________________________________
LINKS:
CIAC BULLETIN: http://www.ciac.org/ciac/bulletins/r-360.shtml
ORIGINAL BULLETIN: https://rhn.redhat.com/errata/RHSA-2007-0936.html
ADDITIONAL LINKS: http://www.ubuntu.com/usn/usn-518-1
http://www.debian.org/security/2007/dsa-1378
CVE: http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=
CVE-2007-4573
______________________________________________________________________________
REVISION HISTORY:
9/27/2007 - revised R-360 to add a link to Ubunto Security Notice USN-518-1 for
Ubunto 6.06 LTS, Ubunto 6.10, and Ubunto 7.04.
9/28/2007 - revised R-348 to add a link to Debian Security Advisory DSA-1378-1
for Debian GNU/Linux 4.0 (etch).
[***** Start Red Hat RHSA-2007:0936-2 *****]
Important: kernel security update
Advisory: RHSA-2007:0936-2
Type: Security Advisory
Severity: Important
Issued on: 2007-09-27
Last updated on: 2007-09-27
Affected Products: Red Hat Enterprise Linux (v. 5 server)
Red Hat Enterprise Linux Desktop (v. 5 client)
OVAL: com.redhat.rhsa-20070936.xml
CVEs (cve.mitre.org): CVE-2007-4573
Details
Updated kernel packages that fix a security issue in the Red Hat Enterprise
Linux 5 kernel are now available.
This update has been rated as having important security impact by the Red
Hat Security Response Team.
The Linux kernel handles the basic functions of the operating system.
A flaw was found in the IA32 system call emulation provided on AMD64 and
Intel 64 platforms. An improperly validated 64-bit value could be stored in
the %RAX register, which could trigger an out-of-bounds system call table
access. An untrusted local user could exploit this flaw to run code in the
kernel (ie a root privilege escalation). (CVE-2007-4573).
Red Hat would like to thank Wojciech Purczynski for reporting this issue.
Red Hat Enterprise Linux 5 users are advised to upgrade to these packages,
which contain a backported patch to correct this issue.
Solution
Before applying this update, make sure that all previously-released
errata relevant to your system have been applied.
This update is available via Red Hat Network. Details on how to use
the Red Hat Network to apply this update are available at
http://kbase.redhat.com/faq/FAQ_58_10188
Updated packages
Red Hat Enterprise Linux (v. 5 server)
--------------------------------------------------------------------------------
SRPMS:
kernel-2.6.18-8.1.14.el5.src.rpm e864e7c886ad6bd8a466d601e124d173
IA-32:
kernel-2.6.18-8.1.14.el5.i686.rpm c5708f61da5a1cd657387fd668c09070
kernel-PAE-2.6.18-8.1.14.el5.i686.rpm bff45b4bb682aac45063413899a06576
kernel-PAE-devel-2.6.18-8.1.14.el5.i686.rpm babeefe626d9cfa77e916def06eebca8
kernel-devel-2.6.18-8.1.14.el5.i686.rpm 5e4a74221dc2d89eb61687483d765da7
kernel-doc-2.6.18-8.1.14.el5.noarch.rpm c126057734f1b94f43174a83ab6614a9
kernel-headers-2.6.18-8.1.14.el5.i386.rpm 3a6500224f3247fb02eb15fdf1dcf7fa
kernel-xen-2.6.18-8.1.14.el5.i686.rpm 6e6ff28d8bc48e9227bd15e30fe6a222
kernel-xen-devel-2.6.18-8.1.14.el5.i686.rpm 3d8089808868c8848160c50f9836c50d
IA-64:
kernel-2.6.18-8.1.14.el5.ia64.rpm 04f3f9061fdd5dd13976ec24d6490f3c
kernel-devel-2.6.18-8.1.14.el5.ia64.rpm f1ea0fc12a5f524207b352bb2797797b
kernel-doc-2.6.18-8.1.14.el5.noarch.rpm c126057734f1b94f43174a83ab6614a9
kernel-headers-2.6.18-8.1.14.el5.ia64.rpm bf20f192973330148a4e39fb01ebb2ac
kernel-xen-2.6.18-8.1.14.el5.ia64.rpm 043bea776071be0fbec7bfcb2ca26c71
kernel-xen-devel-2.6.18-8.1.14.el5.ia64.rpm 642a0cc7fb33898b1c8e29c0b3b2144d
PPC:
kernel-2.6.18-8.1.14.el5.ppc64.rpm fd1014c95cdafb8f2f5821edb8fe3e3e
kernel-devel-2.6.18-8.1.14.el5.ppc64.rpm 6f90335fc97510f00d412433d2cac5d6
kernel-doc-2.6.18-8.1.14.el5.noarch.rpm c126057734f1b94f43174a83ab6614a9
kernel-headers-2.6.18-8.1.14.el5.ppc.rpm b198a4254da4be818b65568f43a1d13f
kernel-headers-2.6.18-8.1.14.el5.ppc64.rpm 912b2826d06f1ec64c5285d210cdcda3
kernel-kdump-2.6.18-8.1.14.el5.ppc64.rpm 9bcded50fdf04a34cf068be0205751ba
kernel-kdump-devel-2.6.18-8.1.14.el5.ppc64.rpm 18c9d8881fb4ac39b9a147f75aec7d8b
s390x:
kernel-2.6.18-8.1.14.el5.s390x.rpm e9e962c7ef8589a669ff3491bd65d294
kernel-devel-2.6.18-8.1.14.el5.s390x.rpm b3a54a09be16b1a727e54364755514f4
kernel-doc-2.6.18-8.1.14.el5.noarch.rpm c126057734f1b94f43174a83ab6614a9
kernel-headers-2.6.18-8.1.14.el5.s390x.rpm 5f94fecd0b8622617fb48c49819b97bb
x86_64:
kernel-2.6.18-8.1.14.el5.x86_64.rpm 768d7dcf7eed6bbf7add28d46237d3e5
kernel-devel-2.6.18-8.1.14.el5.x86_64.rpm 181e5913174d98cc4bb0f919ddc770b2
kernel-doc-2.6.18-8.1.14.el5.noarch.rpm c126057734f1b94f43174a83ab6614a9
kernel-headers-2.6.18-8.1.14.el5.x86_64.rpm 60bd95d21e87bf5f8b7cd6b2eae982e1
kernel-xen-2.6.18-8.1.14.el5.x86_64.rpm 413f70b178c8374137d3305ea1a4cc36
kernel-xen-devel-2.6.18-8.1.14.el5.x86_64.rpm 5f7ffa8121bb45510b25110973ff677f
Red Hat Enterprise Linux Desktop (v. 5 client)
--------------------------------------------------------------------------------
SRPMS:
kernel-2.6.18-8.1.14.el5.src.rpm e864e7c886ad6bd8a466d601e124d173
IA-32:
kernel-2.6.18-8.1.14.el5.i686.rpm c5708f61da5a1cd657387fd668c09070
kernel-PAE-2.6.18-8.1.14.el5.i686.rpm bff45b4bb682aac45063413899a06576
kernel-PAE-devel-2.6.18-8.1.14.el5.i686.rpm babeefe626d9cfa77e916def06eebca8
kernel-devel-2.6.18-8.1.14.el5.i686.rpm 5e4a74221dc2d89eb61687483d765da7
kernel-doc-2.6.18-8.1.14.el5.noarch.rpm c126057734f1b94f43174a83ab6614a9
kernel-headers-2.6.18-8.1.14.el5.i386.rpm 3a6500224f3247fb02eb15fdf1dcf7fa
kernel-xen-2.6.18-8.1.14.el5.i686.rpm 6e6ff28d8bc48e9227bd15e30fe6a222
kernel-xen-devel-2.6.18-8.1.14.el5.i686.rpm 3d8089808868c8848160c50f9836c50d
x86_64:
kernel-2.6.18-8.1.14.el5.x86_64.rpm 768d7dcf7eed6bbf7add28d46237d3e5
kernel-devel-2.6.18-8.1.14.el5.x86_64.rpm 181e5913174d98cc4bb0f919ddc770b2
kernel-doc-2.6.18-8.1.14.el5.noarch.rpm c126057734f1b94f43174a83ab6614a9
kernel-headers-2.6.18-8.1.14.el5.x86_64.rpm 60bd95d21e87bf5f8b7cd6b2eae982e1
kernel-xen-2.6.18-8.1.14.el5.x86_64.rpm 413f70b178c8374137d3305ea1a4cc36
kernel-xen-devel-2.6.18-8.1.14.el5.x86_64.rpm 5f7ffa8121bb45510b25110973ff677f
(The unlinked packages above are only available from the Red Hat Network)
Bugs fixed (see bugzilla for more information)
294541 - CVE-2007-4573 x86_64 syscall vulnerability
References
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-4573
http://www.redhat.com/security/updates/classification/#important
--------------------------------------------------------------------------------
These packages are GPG signed by Red Hat for security. Our key and details on how
to verify the signature are available from:
https://www.redhat.com/security/team/key/#package
The Red Hat security contact is secalert@redhat.com. More contact details at
http://www.redhat.com/security/team/contact/
[***** End Red Hat RHSA-2007:0936-2 *****]
_______________________________________________________________________________
CIAC wishes to acknowledge the contributions of Red Hat for the
information contained in this bulletin.
_______________________________________________________________________________
CIAC, the Computer Incident Advisory Capability, is the computer
security incident response team for the U.S. Department of Energy
(DOE) and the emergency backup response team for the National
Institutes of Health (NIH). CIAC is located at the Lawrence Livermore
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