Linux Kernel sock.c sock_getsockopt() information disclosure

kernel-sock-information-disclosure (48847)

Low Risk

Description:

Linux Kernel could allow a local attacker to obtain sensitive information, caused by the improper initialization of the sock_getsockopt() function in sock.c when the SO_BSDCOMPAT option is set. A local attacker could exploit this vulnerability to view portions of kernel memory, which could be used to launch further attacks on the system.

*CVSS:

Base Score:	1.9
Access Vector:	Local
Access Complexity:	Medium
Authentication:	None
Confidentiality Impact:	Partial
Integrity Impact:	None
Availability Impact:	None
Temporal Score:	1.4
Exploitability:	Unproven
Remediation Level:	Official-Fix
Report Confidence:	Confirmed

Consequences:

Obtain Information

Remedy:

Upgrade to the latest version of Linux Kernel (2.6.28.6 or later), available from The Linux Kernel Archives Web site. See References.

References:

• Red Hat Bugzilla ¿ Bug 486305: kernel: memory disclosure in SO_BSDCOMPAT gsopt .
• The Linux Kernel Archives Web site: ChangeLog-2.6.28.6.
• ASA-2009-176: kernel security and bug fix update (RHSA-2009-0459)
• BID-33846: Linux Kernel 'sock.c' SO_BSDCOMPAT Option Information Disclosure Vulnerability
• CVE-2009-0676: The sock_getsockopt function in net/core/sock.c in the Linux kernel before 2.6.28.6 does not initialize a certain structure member, which allows local users to obtain potentially sensitive information from kernel memory via an SO_BSDCOMPAT getsockopt request.
• DSA-1749: linux-2.6 -- denial of service/privilege escalation/sensitive memory leak
• DSA-1787: linux-2.6.24 -- denial of service/privilege escalation/information leak
• DSA-1794: linux-2.6 -- denial of service/privilege escalation/information leak
• MDVSA-2009:071: kernel
• RHSA-2009-0326: Important: kernel security and bug fix update
• RHSA-2009-0360: Important: kernel-rt security and bug fix update
• RHSA-2009-0459: Important: kernel security and bug fix update
• SUSE-SA:2009:015: Linux kernel security update
• SUSE-SA:2009:017: Linux kernel security update
• SUSE-SA:2009:021: Linux kernel security update
• SUSE-SA:2009:030: Linux kernel security problems
• SUSE-SA:2009:031: Linux kernel security problems
• SUSE-SA:2009:045: Linux kernel local privilege escalation
• USN-751-1: Linux kernel vulnerabilities
• USN-752-1: Linux kernel vulnerabilities
• VUPEN/ADV-2009-3316: VMware Products Multiple Code Execution and Security Bypass Issues

Platforms Affected:

• Canonical Ubuntu 6.06 LTS
• Canonical Ubuntu 7.10
• Canonical Ubuntu 8.04 LTS
• Canonical Ubuntu 8.10
• Debian Debian Linux 4.0
• Debian Debian Linux 5.0
• Linux Kernel 2.6.0 test9-cvs
• Linux Kernel 2.6.0 test9
• Linux Kernel 2.6.0 test8
• Linux Kernel 2.6.0 test7
• Linux Kernel 2.6.0 test6
• Linux Kernel 2.6.0 test5
• Linux Kernel 2.6.0 test4
• Linux Kernel 2.6.0 test3
• Linux Kernel 2.6.0 test2
• Linux Kernel 2.6.0 test11
• Linux Kernel 2.6.0 test10
• Linux Kernel 2.6.0 test1
• Linux Kernel 2.6.0
• Linux Kernel 2.6.1 rc2
• Linux Kernel 2.6.1 rc1
• Linux Kernel 2.6.1
• Linux Kernel 2.6.10 rc2
• Linux Kernel 2.6.10
• Linux Kernel 2.6.11 rc4
• Linux Kernel 2.6.11 rc2
• Linux Kernel 2.6.11 rc3
• Linux Kernel 2.6.11
• Linux Kernel 2.6.11.1
• Linux Kernel 2.6.11.11
• Linux Kernel 2.6.11.12
• Linux Kernel 2.6.11.2
• Linux Kernel 2.6.11.4
• 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 rc5
• Linux Kernel 2.6.12
• Linux Kernel 2.6.12.1
• Linux Kernel 2.6.12.2
• Linux Kernel 2.6.12.22
• Linux Kernel 2.6.12.3
• Linux Kernel 2.6.12.4
• Linux Kernel 2.6.12.5
• Linux Kernel 2.6.12.6
• Linux Kernel 2.6.13 rc4
• Linux Kernel 2.6.13 rc1
• Linux Kernel 2.6.13 rc6
• Linux Kernel 2.6.13 rc7
• Linux Kernel 2.6.13
• Linux Kernel 2.6.13.1
• Linux Kernel 2.6.13.2
• Linux Kernel 2.6.13.3
• Linux Kernel 2.6.13.4
• Linux Kernel 2.6.14 rc2
• Linux Kernel 2.6.14 rc1
• Linux Kernel 2.6.14 rc3
• Linux Kernel 2.6.14 rc4
• Linux Kernel 2.6.14
• Linux Kernel 2.6.15 rc1
• Linux Kernel 2.6.15 rc3
• Linux Kernel 2.6.15 rc2
• Linux Kernel 2.6.15.11
• Linux Kernel 2.6.17 rc5
• Linux Kernel 2.6.18.53
• Linux Kernel 2.6.19
• Linux Kernel 2.6.19 rc2
• Linux Kernel 2.6.19 rc4
• Linux Kernel 2.6.19 rc3
• Linux Kernel 2.6.19 rc1
• Linux Kernel 2.6.19.1
• Linux Kernel 2.6.19.2
• Linux Kernel 2.6.21 rc3
• Linux Kernel 2.6.21 rc4
• Linux Kernel 2.6.21 rc5
• Linux Kernel 2.6.21 rc6
• Linux Kernel 2.6.21.6
• Linux Kernel 2.6.21.7
• Linux Kernel 2.6.22 rc7
• Linux Kernel 2.6.22 rc1
• Linux Kernel 2.6.22.11
• Linux Kernel 2.6.22.12
• Linux Kernel 2.6.22.13
• Linux Kernel 2.6.22.14
• Linux Kernel 2.6.22.15
• Linux Kernel 2.6.22.17
• Linux Kernel 2.6.22.8
• Linux Kernel 2.6.23.10
• Linux Kernel 2.6.23.6
• Linux Kernel 2.6.23.7
• Linux Kernel 2.6.24 rc3
• Linux Kernel 2.6.24 rc4
• Linux Kernel 2.6.24
• Linux Kernel 2.6.24 rc5
• Linux Kernel 2.6.24 git13
• Linux Kernel 2.6.24.1
• Linux Kernel 2.6.24.2
• Linux Kernel 2.6.25
• Linux Kernel 2.6.25.10
• Linux Kernel 2.6.25.11
• Linux Kernel 2.6.25.12
• Linux Kernel 2.6.25.13
• Linux Kernel 2.6.25.15
• Linux Kernel 2.6.25.19
• Linux Kernel 2.6.25.5
• Linux Kernel 2.6.25.6
• Linux Kernel 2.6.25.7
• Linux Kernel 2.6.25.8
• Linux Kernel 2.6.25.9
• Linux Kernel 2.6.26 rc6
• Linux Kernel 2.6.26
• Linux Kernel 2.6.26.3
• Linux Kernel 2.6.26.4
• Linux Kernel 2.6.26.6
• Linux Kernel 2.6.26.7
• Linux Kernel 2.6.27 rc5
• Linux Kernel 2.6.27 rc2
• Linux Kernel 2.6.27 rc6
• Linux Kernel 2.6.27
• Linux Kernel 2.6.27 rc6-git6
• Linux Kernel 2.6.27 rc1
• Linux Kernel 2.6.27 rc8-git5
• Linux Kernel 2.6.27 rc8
• Linux Kernel 2.6.27.12
• Linux Kernel 2.6.27.14
• Linux Kernel 2.6.27.4
• Linux Kernel 2.6.27.5
• Linux Kernel 2.6.27.6
• Linux Kernel 2.6.27.7
• Linux Kernel 2.6.27.8
• Linux Kernel 2.6.28 git7
• Linux Kernel 2.6.28 rc7
• Linux Kernel 2.6.28 rc5
• Linux Kernel 2.6.28 rc1
• Linux Kernel 2.6.28
• Linux Kernel 2.6.28.1
• Linux Kernel 2.6.28.2
• Linux Kernel 2.6.28.3
• Linux Kernel 2.6.28.4
• Linux Kernel 2.6.28.5
• Linux Kernel 2.6.8.1
• Linux Linux Kernel 2.6.14.1
• Linux Linux Kernel 2.6.14.2
• Linux Linux Kernel 2.6.14.3
• Linux Linux Kernel 2.6.14.4
• Linux Linux Kernel 2.6.15
• Linux Linux Kernel 2.6.15.1
• Linux Linux Kernel 2.6.15.2
• Linux Linux Kernel 2.6.15.3
• Linux Linux Kernel 2.6.15.4
• Linux Linux Kernel 2.6.15.5
• Linux Linux Kernel 2.6.16
• Linux Linux Kernel 2.6.16.1
• Linux Linux Kernel 2.6.16.11
• Linux Linux Kernel 2.6.16.12
• Linux Linux Kernel 2.6.16.13
• Linux Linux Kernel 2.6.16.19
• Linux Linux Kernel 2.6.16.23
• Linux Linux Kernel 2.6.16.27
• Linux Linux Kernel 2.6.16.7
• Linux Linux Kernel 2.6.16.9
• Linux Linux Kernel 2.6.17
• Linux Linux Kernel 2.6.17.1
• Linux Linux Kernel 2.6.17.10
• Linux Linux Kernel 2.6.17.11
• Linux Linux Kernel 2.6.17.12
• Linux Linux Kernel 2.6.17.13
• Linux Linux Kernel 2.6.17.14
• Linux Linux Kernel 2.6.17.2
• Linux Linux Kernel 2.6.17.3
• Linux Linux Kernel 2.6.17.5
• Linux Linux Kernel 2.6.17.6
• Linux Linux Kernel 2.6.17.7
• Linux Linux Kernel 2.6.17.8
• Linux Linux Kernel 2.6.18
• Linux Linux Kernel 2.6.18.1
• Linux Linux Kernel 2.6.18.3
• Linux Linux Kernel 2.6.18.4
• Linux Linux Kernel 2.6.18.8
• Linux Linux Kernel 2.6.2
• Linux Linux Kernel 2.6.20
• Linux Linux Kernel 2.6.20.11
• Linux Linux Kernel 2.6.20.13
• Linux Linux Kernel 2.6.20.15
• Linux Linux Kernel 2.6.20.3
• Linux Linux Kernel 2.6.20.4
• Linux Linux Kernel 2.6.20.5
• Linux Linux Kernel 2.6.20.8
• Linux Linux Kernel 2.6.20.9
• Linux Linux Kernel 2.6.21
• Linux Linux Kernel 2.6.21.1
• Linux Linux Kernel 2.6.21.2
• Linux Linux Kernel 2.6.21.4
• Linux Linux Kernel 2.6.22
• Linux Linux Kernel 2.6.22.1
• Linux Linux Kernel 2.6.22.16
• Linux Linux Kernel 2.6.22.3
• Linux Linux Kernel 2.6.22.4
• Linux Linux Kernel 2.6.22.5
• Linux Linux Kernel 2.6.22.6
• Linux Linux Kernel 2.6.23
• Linux Linux Kernel 2.6.23 rc2
• Linux Linux Kernel 2.6.23 rc1
• Linux Linux Kernel 2.6.23.1
• Linux Linux Kernel 2.6.23.14
• Linux Linux Kernel 2.6.23.2
• Linux Linux Kernel 2.6.23.3
• Linux Linux Kernel 2.6.23.4
• Linux Linux Kernel 2.6.23.5
• Mandriva Linux 2009.0 X86_64
• Mandriva Linux 2009.0
• Novell Linux Desktop 9
• Novell Linux POS 9
• Novell Open Enterprise Server
• Novell OpenSUSE 10.3
• Novell OpenSUSE 11.0
• Novell SLE SDK 10 SP2
• Novell SUSE Linux Enterprise 10 SP2 DEBUGINFO
• Novell SUSE Linux Enterprise Desktop 10 SP2
• Novell SUSE Linux Enterprise Server 10 SP2
• RedHat Enterprise Linux 3 WS
• RedHat Enterprise Linux 4 WS
• RedHat Enterprise Linux 4 ES
• RedHat Enterprise Linux 4 Desktop
• RedHat Enterprise Linux 4 AS
• RedHat Enterprise Linux 4.7.z AS
• RedHat Enterprise Linux 5
• RedHat Enterprise Linux 5 Client
• RedHat Enterprise Linux 5.3.z EUS
• RedHat Enterprise Linux Long Life 5.3
• RedHat MRG v1 for Red Hat Enterprise Linux 5
• RedHat Red Hat Enterprise Linux 4.7.z ES
• SUSE SuSE Linux 9.0
• SuSE SuSE SLES 9

Reported:

Feb 19, 2009

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