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Vulnerability Details : CVE-2012-2127

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.
Publish Date : 2012-06-21 Last Update Date : 2013-02-12
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- CVSS Scores & Vulnerability Types

CVSS Score
5.0
Confidentiality Impact None (There is no impact to the confidentiality of the system.)
Integrity Impact None (There is no impact to the integrity of the system)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Denial Of ServiceOverflow
CWE ID 119

- Products Affected By CVE-2012-2127

# Product Type Vendor Product Version Update Edition Language
1 OS Linux Linux Kernel 3.1.1 Version Details Vulnerabilities
2 OS Linux Linux Kernel 3.1.2 Version Details Vulnerabilities
3 OS Linux Linux Kernel 3.1.3 Version Details Vulnerabilities
4 OS Linux Linux Kernel 3.1.4 Version Details Vulnerabilities
5 OS Linux Linux Kernel 3.1.5 Version Details Vulnerabilities
6 OS Linux Linux Kernel 3.1.6 Version Details Vulnerabilities
7 OS Linux Linux Kernel 3.1.7 Version Details Vulnerabilities
8 OS Linux Linux Kernel 3.1.8 Version Details Vulnerabilities
9 OS Linux Linux Kernel 3.1.9 Version Details Vulnerabilities
10 OS Linux Linux Kernel 3.1.10 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Linux Linux Kernel 10

- References For CVE-2012-2127

http://www.openwall.com/lists/oss-security/2012/04/20/25
MLIST [oss-security] 20120420 Re: CVE request: pid namespace leak in kernel 3.0 and 3.1
http://www.kernel.org/pub/linux/kernel/v3.x/ CONFIRM
http://www.ubuntu.com/usn/USN-1594-1
UBUNTU USN-1594-1
http://www.securityfocus.com/bid/55774
BID 55774 Linux Kernel 'fs/proc/root.c' Remote Denial of Service Vulnerability Release Date:2012-10-11
http://www.openwall.com/lists/oss-security/2012/04/22/1
MLIST [oss-security] 20120422 Re: Re: CVE request: pid namespace leak in kernel 3.0 and 3.1
https://github.com/torvalds/linux/commit/905ad269c55fc62bee3da29f7b1d1efeba8aa1e1 CONFIRM
http://www.kernel.org/pub/linux/kernel/v3.x/patch-3.2.bz2 CONFIRM
https://bugzilla.redhat.com/show_bug.cgi?id=815188 CONFIRM
https://bugzilla.novell.com/show_bug.cgi?id=757783 CONFIRM
http://ubuntu.com/usn/usn-1607-1
UBUNTU USN-1607-1
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=905ad269c55fc62bee3da29f7b1d1efeba8aa1e1 CONFIRM

- Metasploit Modules Related To CVE-2012-2127

There are not any metasploit modules related to this vulnerability (Please visit www.metasploit.com for more information)


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