4.9
MEDIUM
CVE-2009-2908
eCryptfs NULL Pointer Dereference Denial of Service and Remote Code Execution
Description

The d_delete function in fs/ecryptfs/inode.c in eCryptfs in the Linux kernel 2.6.31 allows local users to cause a denial of service (kernel OOPS) and possibly execute arbitrary code via unspecified vectors that cause a "negative dentry" and trigger a NULL pointer dereference, as demonstrated via a Mutt temporary directory in an eCryptfs mount.

INFO

Published Date :

Oct. 13, 2009, 10:30 a.m.

Last Modified :

Nov. 21, 2024, 1:06 a.m.

Remotely Exploitable :

No

Impact Score :

6.9

Exploitability Score :

3.9
Public PoC/Exploit Available at Github

CVE-2009-2908 has a 1 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

Affected Products

The following products are affected by CVE-2009-2908 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
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-2009-2908.

URL Resource
http://git.kernel.org/?p=linux/kernel/git/stable/linux-2.6.31.y.git%3Ba=commit%3Bh=afc2b6932f48f200736d3e36ad66fee0ec733136
http://lists.vmware.com/pipermail/security-announce/2010/000082.html
http://secunia.com/advisories/37075
http://secunia.com/advisories/37105
http://secunia.com/advisories/38794
http://secunia.com/advisories/38834
http://www.openwall.com/lists/oss-security/2009/10/06/1
http://www.securityfocus.com/bid/36639 Patch
http://www.ubuntu.com/usn/USN-852-1
http://www.vupen.com/english/advisories/2010/0528
https://bugs.launchpad.net/ecryptfs/+bug/387073
https://bugzilla.redhat.com/show_bug.cgi?id=527534
https://exchange.xforce.ibmcloud.com/vulnerabilities/53693
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10216
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6992
https://rhn.redhat.com/errata/RHSA-2009-1548.html
https://www.redhat.com/archives/fedora-package-announce/2009-October/msg00483.html
http://git.kernel.org/?p=linux/kernel/git/stable/linux-2.6.31.y.git%3Ba=commit%3Bh=afc2b6932f48f200736d3e36ad66fee0ec733136
http://lists.vmware.com/pipermail/security-announce/2010/000082.html
http://secunia.com/advisories/37075
http://secunia.com/advisories/37105
http://secunia.com/advisories/38794
http://secunia.com/advisories/38834
http://www.openwall.com/lists/oss-security/2009/10/06/1
http://www.securityfocus.com/bid/36639 Patch
http://www.ubuntu.com/usn/USN-852-1
http://www.vupen.com/english/advisories/2010/0528
https://bugs.launchpad.net/ecryptfs/+bug/387073
https://bugzilla.redhat.com/show_bug.cgi?id=527534
https://exchange.xforce.ibmcloud.com/vulnerabilities/53693
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10216
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6992
https://rhn.redhat.com/errata/RHSA-2009-1548.html
https://www.redhat.com/archives/fedora-package-announce/2009-October/msg00483.html

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).

Collection of tools for privesc on Linux

Shell C

Updated: 3 months, 1 week ago
33 stars 12 fork 12 watcher
Born at : Aug. 18, 2013, 5:25 p.m. This repo has been linked 5 different CVEs too.

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

The following list is the news that have been mention CVE-2009-2908 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2009-2908 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/stable/linux-2.6.31.y.git%3Ba=commit%3Bh=afc2b6932f48f200736d3e36ad66fee0ec733136
    Added Reference http://lists.vmware.com/pipermail/security-announce/2010/000082.html
    Added Reference http://secunia.com/advisories/37075
    Added Reference http://secunia.com/advisories/37105
    Added Reference http://secunia.com/advisories/38794
    Added Reference http://secunia.com/advisories/38834
    Added Reference http://www.openwall.com/lists/oss-security/2009/10/06/1
    Added Reference http://www.securityfocus.com/bid/36639
    Added Reference http://www.ubuntu.com/usn/USN-852-1
    Added Reference http://www.vupen.com/english/advisories/2010/0528
    Added Reference https://bugs.launchpad.net/ecryptfs/+bug/387073
    Added Reference https://bugzilla.redhat.com/show_bug.cgi?id=527534
    Added Reference https://exchange.xforce.ibmcloud.com/vulnerabilities/53693
    Added Reference https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10216
    Added Reference https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6992
    Added Reference https://rhn.redhat.com/errata/RHSA-2009-1548.html
    Added Reference https://www.redhat.com/archives/fedora-package-announce/2009-October/msg00483.html
  • 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 CVE-2009-2908 kernel ecryptfs NULL pointer dereference The d_delete function in fs/ecryptfs/inode.c in eCryptfs in the Linux kernel 2.6.31 allows local users to cause a denial of service (kernel OOPS) and possibly execute arbitrary code via unspecified vectors that cause a "negative dentry" and trigger a NULL pointer dereference, as demonstrated via a Mutt temporary directory in an eCryptfs mount.
    Removed CVSS V2 Red Hat, Inc. (AV:L/AC:L/Au:N/C:C/I:C/A:C)
    Removed Reference https://access.redhat.com/errata/RHSA-2009:1548 [No Types Assigned]
    Removed Reference https://access.redhat.com/security/cve/CVE-2009-2908 [No Types Assigned]
  • CVE Modified by [email protected]

    Feb. 02, 2023

    Action Type Old Value New Value
    Changed Description The d_delete function in fs/ecryptfs/inode.c in eCryptfs in the Linux kernel 2.6.31 allows local users to cause a denial of service (kernel OOPS) and possibly execute arbitrary code via unspecified vectors that cause a "negative dentry" and trigger a NULL pointer dereference, as demonstrated via a Mutt temporary directory in an eCryptfs mount. CVE-2009-2908 kernel ecryptfs NULL pointer dereference
    Added CVSS V2 Red Hat, Inc. (AV:L/AC:L/Au:N/C:C/I:C/A:C)
    Removed Reference http://git.kernel.org/?p=linux/kernel/git/stable/linux-2.6.31.y.git;a=commit;h=afc2b6932f48f200736d3e36ad66fee0ec733136 [Exploit]
    Added Reference https://access.redhat.com/security/cve/CVE-2009-2908 [No Types Assigned]
    Added Reference https://access.redhat.com/errata/RHSA-2009:1548 [No Types Assigned]
    Added Reference http://git.kernel.org/?p=linux/kernel/git/stable/linux-2.6.31.y.git%3Ba=commit%3Bh=afc2b6932f48f200736d3e36ad66fee0ec733136 [No Types Assigned]
  • CVE Modified by [email protected]

    Sep. 19, 2017

    Action Type Old Value New Value
    Removed Reference http://oval.mitre.org/repository/data/getDef?id=oval:org.mitre.oval:def:6992 [No Types Assigned]
    Removed Reference http://oval.mitre.org/repository/data/getDef?id=oval:org.mitre.oval:def:10216 [No Types Assigned]
    Added Reference https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6992 [No Types Assigned]
    Added Reference https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10216 [No Types Assigned]
  • CVE Modified by [email protected]

    Aug. 17, 2017

    Action Type Old Value New Value
    Removed Reference http://xforce.iss.net/xforce/xfdb/53693 [No Types Assigned]
    Added Reference https://exchange.xforce.ibmcloud.com/vulnerabilities/53693 [No Types Assigned]
  • Initial Analysis by [email protected]

    Oct. 13, 2009

    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.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2009-2908 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-2009-2908 weaknesses.

Exploit Prediction

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

0.04 }} 0.00%

score

0.08236

percentile

CVSS2 - Vulnerability Scoring System
Access Vector
Access Complexity
Authentication
Confidentiality
Integrity
Availability