Bug 487990 - (CVE-2009-0834) CVE-2009-0834 kernel: x86-64: syscall-audit: 32/64 syscall hole
CVE-2009-0834 kernel: x86-64: syscall-audit: 32/64 syscall hole
Status: CLOSED ERRATA
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
high Severity high
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Assigned To: Red Hat Product Security
public=20090227,source=lkml,reported=...
: Security
Depends On: 487997 487998 487999 488000 488001 488002 549238
Blocks:
  Show dependency treegraph
 
Reported: 2009-03-01 23:11 EST by Eugene Teo (Security Response)
Modified: 2016-06-10 18:28 EDT (History)
11 users (show)

See Also:
Fixed In Version:
Doc Type: Bug Fix
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Last Closed: 2016-06-10 18:28:32 EDT
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RHEL 7.3 requirements from Atomic Host:
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Attachments (Terms of Use)
RHEL5 patch for audit case (vs kernel-2.6.18-132.el5) (1.30 KB, application/octet-stream)
2009-03-01 23:39 EST, Eugene Teo (Security Response)
no flags Details

  None (edit)
Description Eugene Teo (Security Response) 2009-03-01 23:11:30 EST
Description of problem:
On x86-64, a 32-bit process (TIF_IA32) can switch to 64-bit mode with ljmp, and then use the "syscall" instruction to make a 64-bit system call.  A 64-bit process make a 32-bit system call with int $0x80.

In both these cases, audit_syscall_entry() will use the wrong system call number table and the wrong system call argument registers.  This could be used to circumvent a syscall audit configuration that filters based on the syscall numbers or argument details.

References:
http://scary.beasts.org/security/CESA-2009-001.html
http://scary.beasts.org/security/CESA-2009-004.html
https://bugzilla.redhat.com/show_bug.cgi?id=487255
http://lkml.org/lkml/2009/2/27/451 summary
http://lkml.org/lkml/2009/2/27/452 syscall-audit
Comment 2 Eugene Teo (Security Response) 2009-03-01 23:39:00 EST
Created attachment 333681 [details]
RHEL5 patch for audit case (vs kernel-2.6.18-132.el5)
Comment 5 Eugene Teo (Security Response) 2009-03-19 00:15:25 EDT
CVSS2 score of low, 3.6 (AV:L/AC:L/Au:N/C:P/I:P/A:N)
Comment 6 Eugene Teo (Security Response) 2009-04-13 22:50:45 EDT
Upstream patch:
http://git.kernel.org/linus/ccbe495caa5e604b04d5a31d7459a6f6a76a756c
Comment 7 errata-xmlrpc 2009-04-29 05:28:30 EDT
This issue has been addressed in following products:

  MRG for RHEL-5

Via RHSA-2009:0451 https://rhn.redhat.com/errata/RHSA-2009-0451.html
Comment 8 errata-xmlrpc 2009-04-30 17:24:58 EDT
This issue has been addressed in following products:

  Red Hat Enterprise Linux 4

Via RHSA-2009:0459 https://rhn.redhat.com/errata/RHSA-2009-0459.html
Comment 9 errata-xmlrpc 2009-05-07 06:53:15 EDT
This issue has been addressed in following products:

  Red Hat Enterprise Linux 5

Via RHSA-2009:0473 https://rhn.redhat.com/errata/RHSA-2009-0473.html
Comment 11 errata-xmlrpc 2010-02-02 16:01:38 EST
This issue has been addressed in following products:

  Red Hat Enterprise Linux 5.2 Z Stream

Via RHSA-2010:0079 https://rhn.redhat.com/errata/RHSA-2010-0079.html

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