Title: Linux Kernel IPSec Policies Authorization Bypass Vulnerability
Severity: MODERATE
Description:
Linux Kernel is prone to an authorization-bypass vulnerability. The application fails to perform proper authorization before permitting access to the 'setsockopt()' function.
Successful exploitation will permit a local attacker to bypass intended IPSec policies, set invalid policies, and cause a denial of service when adding policies until kernel memory is exhausted.
This issue has been addressed by restricting access to the affected script to processes with the 'CAP_NET_ADMIN' capability.
Note that an attacker can use this vulnerability to enhance the exploitation of BID 14477 (Linux Kernel XFRM Array Index Buffer Overflow Vulnerability); that issue requires the ability to add IPSec policies.
Affected Products:
- Conectiva Linux 10.0.0
- Debian Linux 3.1.0
- Debian Linux 3.1.0 alpha
- Debian Linux 3.1.0 amd64
- Debian Linux 3.1.0 arm
- Debian Linux 3.1.0 hppa
- Debian Linux 3.1.0 ia-32
- Debian Linux 3.1.0 ia-64
- Debian Linux 3.1.0 m68k
- Debian Linux 3.1.0 mips
- Debian Linux 3.1.0 mipsel
- Debian Linux 3.1.0 ppc
- Debian Linux 3.1.0 s/390
- Debian Linux 3.1.0 sparc
- Linux kernel 2.6.0
- Linux kernel 2.6.0 -test1
- Linux kernel 2.6.0 -test10
- Linux kernel 2.6.0 -test11
- Linux kernel 2.6.0 -test2
- Linux kernel 2.6.0 -test3
- Linux kernel 2.6.0 -test4
- Linux kernel 2.6.0 -test5
- Linux kernel 2.6.0 -test6
- Linux kernel 2.6.0 -test7
- Linux kernel 2.6.0 -test8
- Linux kernel 2.6.0 -test9
- Linux kernel 2.6.0 -test9-CVS
- Linux kernel 2.6.0 .10
- Linux kernel 2.6.1
- Linux kernel 2.6.1 -rc1
- Linux kernel 2.6.1 -rc2
- Linux kernel 2.6.10
- Linux kernel 2.6.10 rc2
- Linux kernel 2.6.11
- Linux kernel 2.6.11 -rc2
- Linux kernel 2.6.11 -rc3
- Linux kernel 2.6.11 -rc4
- Linux kernel 2.6.11 .11
- Linux kernel 2.6.11 .5
- Linux kernel 2.6.11 .6
- Linux kernel 2.6.11 .7
- Linux kernel 2.6.11 .8
- Linux kernel 2.6.12 -rc1
- Linux kernel 2.6.12 -rc4
- Linux kernel 2.6.12 .1
- Linux kernel 2.6.2
- Linux kernel 2.6.3
- Linux kernel 2.6.4
- Linux kernel 2.6.5
- Linux kernel 2.6.6
- Linux kernel 2.6.6 rc1
- Linux kernel 2.6.7
- Linux kernel 2.6.7 rc1
- Linux kernel 2.6.8
- Linux kernel 2.6.8 rc1
- Linux kernel 2.6.8 rc2
- Linux kernel 2.6.8 rc3
- Linux kernel 2.6.9
- MandrakeSoft Corporate Server 3.0.0
- MandrakeSoft Corporate Server 3.0.0 x86_64
- MandrakeSoft Linux Mandrake 10.1.0
- MandrakeSoft Linux Mandrake 10.1.0 x86_64
- MandrakeSoft Multi Network Firewall 2.0.0
- RedHat Desktop 3.0.0
- RedHat Desktop 4.0.0
- RedHat Enterprise Linux AS 3
- RedHat Enterprise Linux AS 4
- RedHat Enterprise Linux ES 3
- RedHat Enterprise Linux ES 4
- RedHat Enterprise Linux WS 3
- RedHat Enterprise Linux WS 4
- RedHat Fedora Core2
- RedHat Fedora Core3
- RedHat Fedora Core4
- S.u.S.E. Linux Enterprise Server 9
- S.u.S.E. Linux Personal 9.1.0
- S.u.S.E. Linux Personal 9.1.0 x86_64
- S.u.S.E. Linux Personal 9.2.0
- S.u.S.E. Linux Personal 9.2.0 x86_64
- S.u.S.E. Linux Personal 9.3.0
- S.u.S.E. Linux Personal 9.3.0 x86_64
- S.u.S.E. Linux Professional 9.1.0
- S.u.S.E. Linux Professional 9.1.0 x86_64
- S.u.S.E. Linux Professional 9.2.0
- S.u.S.E. Linux Professional 9.2.0 x86_64
- S.u.S.E. Linux Professional 9.3.0
- S.u.S.E. Linux Professional 9.3.0 x86_64
- S.u.S.E. Novell Linux Desktop 9.0.0
- Trustix Secure Linux 3.0.0
- Ubuntu Ubuntu Linux 4.1.0 ia32
- Ubuntu Ubuntu Linux 4.1.0 ia64
- Ubuntu Ubuntu Linux 4.1.0 ppc
- Ubuntu Ubuntu Linux 5.0.0 4 amd64
- Ubuntu Ubuntu Linux 5.0.0 4 i386
- Ubuntu Ubuntu Linux 5.0.0 4 powerpc
References:
- Herbert Xu <herbert@gondor.apana.org.au>: [IPSEC]: Restrict socket policy loading to CAP_NET_ADMIN.
- RedHat: RHSA-2005:514-44 - Updated kernel packages available for Red Hat Enterprise Linu
- RedHat: RHSA-2005:663-19 - Updated kernel packages available for Red Hat Enterprise Linu
- kernel.org: Linux v2.6.13-rc7
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