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6.9
MEDIUM CVSS 2.0
CVE-2014-0205
Linux Futex Use-After-Free Privilege Escalation
Description

The futex_wait function in kernel/futex.c in the Linux kernel before 2.6.37 does not properly maintain a certain reference count during requeue operations, which allows local users to cause a denial of service (use-after-free and system crash) or possibly gain privileges via a crafted application that triggers a zero count.

INFO

Published Date :

Sept. 28, 2014, 7:55 p.m.

Last Modified :

April 12, 2025, 10:46 a.m.

Remotely Exploit :

No

Source :

[email protected]
Affected Products

The following products are affected by CVE-2014-0205 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
This vulnerability can be fixed by updating the affected kernel packages.
  • Update the Linux kernel packages.
  • Reboot the system to apply the update.
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-2014-0205.

URL Resource
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=7ada876a8703f23befbb20a7465a702ee39b1704
http://mirror.linux.org.au/linux/kernel/v2.6/ChangeLog-2.6.37 Exploit Vendor Advisory
http://rhn.redhat.com/errata/RHSA-2014-1365.html
http://rhn.redhat.com/errata/RHSA-2014-1763.html
https://bugzilla.redhat.com/show_bug.cgi?id=1094455
https://github.com/torvalds/linux/commit/7ada876a8703f23befbb20a7465a702ee39b1704 Exploit
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=7ada876a8703f23befbb20a7465a702ee39b1704
http://mirror.linux.org.au/linux/kernel/v2.6/ChangeLog-2.6.37 Exploit Vendor Advisory
http://rhn.redhat.com/errata/RHSA-2014-1365.html
http://rhn.redhat.com/errata/RHSA-2014-1763.html
https://bugzilla.redhat.com/show_bug.cgi?id=1094455
https://github.com/torvalds/linux/commit/7ada876a8703f23befbb20a7465a702ee39b1704 Exploit
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2014-0205 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-2014-0205 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-2014-0205 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-2014-0205 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=7ada876a8703f23befbb20a7465a702ee39b1704
    Added Reference http://mirror.linux.org.au/linux/kernel/v2.6/ChangeLog-2.6.37
    Added Reference http://rhn.redhat.com/errata/RHSA-2014-1365.html
    Added Reference http://rhn.redhat.com/errata/RHSA-2014-1763.html
    Added Reference https://bugzilla.redhat.com/show_bug.cgi?id=1094455
    Added Reference https://github.com/torvalds/linux/commit/7ada876a8703f23befbb20a7465a702ee39b1704
  • 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
    Changed Description A flaw was found in the way the Linux kernel's futex subsystem handled reference counting when requeuing futexes during futex_wait(). A local, unprivileged user could use this flaw to zero out the reference counter of an inode or an mm struct that backs up the memory area of the futex, which could lead to a use-after-free flaw, resulting in a system crash or, potentially, privilege escalation. The futex_wait function in kernel/futex.c in the Linux kernel before 2.6.37 does not properly maintain a certain reference count during requeue operations, which allows local users to cause a denial of service (use-after-free and system crash) or possibly gain privileges via a crafted application that triggers a zero count.
    Removed CVSS V2 Red Hat, Inc. (AV:L/AC:M/Au:N/C:C/I:C/A:C)
    Removed Reference https://access.redhat.com/errata/RHSA-2014:1167 [No Types Assigned]
    Removed Reference https://access.redhat.com/errata/RHSA-2014:1365 [No Types Assigned]
    Removed Reference https://access.redhat.com/errata/RHSA-2014:1763 [No Types Assigned]
    Removed Reference https://access.redhat.com/security/cve/CVE-2014-0205 [No Types Assigned]
  • CVE Modified by [email protected]

    Feb. 02, 2023

    Action Type Old Value New Value
    Changed Description The futex_wait function in kernel/futex.c in the Linux kernel before 2.6.37 does not properly maintain a certain reference count during requeue operations, which allows local users to cause a denial of service (use-after-free and system crash) or possibly gain privileges via a crafted application that triggers a zero count. A flaw was found in the way the Linux kernel's futex subsystem handled reference counting when requeuing futexes during futex_wait(). A local, unprivileged user could use this flaw to zero out the reference counter of an inode or an mm struct that backs up the memory area of the futex, which could lead to a use-after-free flaw, resulting in a system crash or, potentially, privilege escalation.
    Added CVSS V2 Red Hat, Inc. (AV:L/AC:M/Au:N/C:C/I:C/A:C)
    Removed Reference http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=7ada876a8703f23befbb20a7465a702ee39b1704 [Exploit]
    Added Reference https://access.redhat.com/errata/RHSA-2014:1167 [No Types Assigned]
    Added Reference https://access.redhat.com/errata/RHSA-2014:1365 [No Types Assigned]
    Added Reference https://access.redhat.com/security/cve/CVE-2014-0205 [No Types Assigned]
    Added Reference https://access.redhat.com/errata/RHSA-2014:1763 [No Types Assigned]
    Added Reference http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=7ada876a8703f23befbb20a7465a702ee39b1704 [No Types Assigned]
  • CVE Modified by [email protected]

    Nov. 19, 2014

    Action Type Old Value New Value
    Added Reference http://rhn.redhat.com/errata/RHSA-2014-1365.html
    Added Reference http://rhn.redhat.com/errata/RHSA-2014-1763.html
  • Initial Analysis by [email protected]

    Sep. 29, 2014

    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: 6.9
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.

0.04 }} -0.09%

score

0.09398

percentile