low
3.6
CWE
Advisory Published
CVE Published
Updated

CVE-2009-0834

First published: Mon Mar 02 2009(Updated: )

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: <a href="http://scary.beasts.org/security/CESA-2009-001.html">http://scary.beasts.org/security/CESA-2009-001.html</a> <a href="http://scary.beasts.org/security/CESA-2009-004.html">http://scary.beasts.org/security/CESA-2009-004.html</a> <a class="bz_bug_link bz_status_CLOSED bz_closed bz_public " title="CLOSED ERRATA - CVE-2009-0835 kernel: x86-64: seccomp: 32/64 syscall hole" href="show_bug.cgi?id=487255">https://bugzilla.redhat.com/show_bug.cgi?id=487255</a> <a href="http://lkml.org/lkml/2009/2/27/451">http://lkml.org/lkml/2009/2/27/451</a> summary <a href="http://lkml.org/lkml/2009/2/27/452">http://lkml.org/lkml/2009/2/27/452</a> syscall-audit

Credit: cve@mitre.org cve@mitre.org

Affected SoftwareAffected VersionHow to fix
Linux Kernel<=2.6.28.7
Debian Debian Linux=4.0
Debian Debian Linux=5.0
Ubuntu Linux=7.10
Ubuntu Linux=8.04
Ubuntu Linux=8.10
redhat enterprise Linux desktop=4.0
redhat enterprise Linux desktop=5.0
redhat enterprise Linux eus=4.7
redhat enterprise Linux eus=5.3
redhat enterprise Linux server=4.0
redhat enterprise Linux server=5.0
redhat enterprise Linux server aus=5.3
redhat enterprise Linux workstation=4.0
redhat enterprise Linux workstation=5.0
openSUSE=10.3
openSUSE=11.0
SUSE Linux Enterprise Desktop with Beagle=10-sp2
SUSE Linux Enterprise Server=10-sp2
SUSE Linux Enterprise Software Development Kit=10-sp2

Remedy

https://bugzilla.redhat.com/show_bug.cgi?id=487990

Remedy

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=ccbe495caa5e604b04d5a31d7459a6f6a76a756c

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