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5.0
MEDIUM CVSS 2.0
CVE-2012-2127
Linux fs/proc/root.c CLONE_NEWPID Denial of Service
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.

INFO

Published Date :

June 21, 2012, 11:55 p.m.

Last Modified :

April 11, 2025, 12:51 a.m.

Remotely Exploit :

Yes !

Source :

[email protected]
Affected Products

The following products are affected by CVE-2012-2127 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Linux linux_kernel
: Total Affected Vendor : 1 | Products : 1
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 2.0 MEDIUM [email protected]
Solution
The Linux kernel is affected by a denial of service vulnerability. Updating to a patched version will address the issue.
  • Update the Linux kernel to a version greater than 3.1.10.
  • Apply the appropriate patch.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2012-2127.

URL Resource
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=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
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=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
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2012-2127 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2012-2127 weaknesses.

CAPEC-8: Buffer Overflow in an API Call Buffer Overflow in an API Call CAPEC-9: Buffer Overflow in Local Command-Line Utilities Buffer Overflow in Local Command-Line Utilities CAPEC-10: Buffer Overflow via Environment Variables Buffer Overflow via Environment Variables CAPEC-14: Client-side Injection-induced Buffer Overflow Client-side Injection-induced Buffer Overflow CAPEC-24: Filter Failure through Buffer Overflow Filter Failure through Buffer Overflow CAPEC-42: MIME Conversion MIME Conversion CAPEC-44: Overflow Binary Resource File Overflow Binary Resource File CAPEC-45: Buffer Overflow via Symbolic Links Buffer Overflow via Symbolic Links CAPEC-46: Overflow Variables and Tags Overflow Variables and Tags CAPEC-47: Buffer Overflow via Parameter Expansion Buffer Overflow via Parameter Expansion CAPEC-100: Overflow Buffers Overflow Buffers CAPEC-123: Buffer Manipulation Buffer Manipulation

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2012-2127 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2012-2127 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=905ad269c55fc62bee3da29f7b1d1efeba8aa1e1
    Added Reference http://ubuntu.com/usn/usn-1607-1
    Added Reference http://www.kernel.org/pub/linux/kernel/v3.x/
    Added Reference http://www.kernel.org/pub/linux/kernel/v3.x/patch-3.2.bz2
    Added Reference http://www.openwall.com/lists/oss-security/2012/04/20/25
    Added Reference http://www.openwall.com/lists/oss-security/2012/04/22/1
    Added Reference http://www.securityfocus.com/bid/55774
    Added Reference http://www.ubuntu.com/usn/USN-1594-1
    Added Reference https://bugzilla.novell.com/show_bug.cgi?id=757783
    Added Reference https://bugzilla.redhat.com/show_bug.cgi?id=815188
    Added Reference https://github.com/torvalds/linux/commit/905ad269c55fc62bee3da29f7b1d1efeba8aa1e1
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Feb. 13, 2023

    Action Type Old Value New Value
    Removed Reference http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=905ad269c55fc62bee3da29f7b1d1efeba8aa1e1 [No Types Assigned]
    Added Reference http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=905ad269c55fc62bee3da29f7b1d1efeba8aa1e1 [No Types Assigned]
  • Initial Analysis by [email protected]

    Jun. 22, 2012

    Action Type Old Value New Value
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
Base CVSS Score: 5
Access Vector
Access Complexity
Authentication
Confidentiality Impact
Integrity Impact
Availability Impact
Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

1.92 }} 0.18%

score

0.81709

percentile