National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2012-2127 Detail

Current Description

fs/proc/root.c in the procfs implementation in the Linux kernel before 3.2 does not properly interact with CLONE_NEWPID clone system calls, which allows remote attackers to cause a denial of service (reference leak and memory consumption) by making many connections to a daemon that uses PID namespaces to isolate clients, as demonstrated by vsftpd.

Source:  MITRE
View Analysis Description

Impact

CVSS v2.0 Severity and Metrics:

Base Score: 5.0 MEDIUM
Vector: (AV:N/AC:L/Au:N/C:N/I:N/A:P) (V2 legend)
Impact Subscore: 2.9
Exploitability Subscore: 10.0


Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Partial
Additional Information:
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=905ad269c55fc62bee3da29f7b1d1efeba8aa1e1
http://ubuntu.com/usn/usn-1607-1
http://www.kernel.org/pub/linux/kernel/v3.x/
http://www.kernel.org/pub/linux/kernel/v3.x/patch-3.2.bz2 Patch
http://www.openwall.com/lists/oss-security/2012/04/20/25 Exploit
http://www.openwall.com/lists/oss-security/2012/04/22/1
http://www.securityfocus.com/bid/55774
http://www.ubuntu.com/usn/USN-1594-1
https://bugzilla.novell.com/show_bug.cgi?id=757783 Exploit
https://bugzilla.redhat.com/show_bug.cgi?id=815188 Exploit
https://github.com/torvalds/linux/commit/905ad269c55fc62bee3da29f7b1d1efeba8aa1e1 Exploit Patch

Technical Details

Vulnerability Type (View All)

  • Improper Restriction of Operations within the Bounds of a Memory Buffer (CWE-119)

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:o:linux:linux_kernel:3.1.1:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:linux:linux_kernel:3.1.2:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:linux:linux_kernel:3.1.3:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:linux:linux_kernel:3.1.4:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:linux:linux_kernel:3.1.5:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:linux:linux_kernel:3.1.6:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:linux:linux_kernel:3.1.7:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:linux:linux_kernel:3.1.8:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:linux:linux_kernel:3.1.9:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
Up to (including)
3.1.10


Change History

1 change record found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2012-2127
NVD Published Date:
06/21/2012
NVD Last Modified:
02/12/2013