Linux Kernel Virtual Console Support tty_driver_lookup_tty null pointer dereference
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
5.4 | $0-$5k | 0.00 |
A vulnerability was found in Linux Kernel (Operating System) (the affected version unknown) and classified as problematic. This issue affects the function tty_driver_lookup_tty
of the component Virtual Console Support. The manipulation with an unknown input leads to a null pointer dereference vulnerability. Using CWE to declare the problem leads to CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. Impacted is availability.
The weakness was released 03/13/2015 as confirmed mailinglist post (oss-sec). The advisory is shared at seclists.org. The identification of this vulnerability is CVE-2011-5321 since 03/13/2015. An attack has to be approached locally. No form of authentication is needed for a successful exploitation. Technical details are known, but no exploit is available.
The vulnerability scanner Nessus provides a plugin with the ID 84252 (Debian DLA-246-2 : linux-2.6 regression update), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 123732 (CentOS Security Update for kernel Security Update (CESA-2015:1221)).
Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.kernel.org.
The vulnerability is also documented in the databases at X-Force (101588) and Tenable (84252). Entries connected to this vulnerability are available at 67533, 69190, 69206 and 69207.
Product
Type
Vendor
Name
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 5.9VulDB Meta Temp Score: 5.4
VulDB Base Score: 6.2
VulDB Temp Score: 5.4
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 5.5
NVD Vector: 🔍
CVSSv2
AV | AC | Au | C | I | A |
---|---|---|---|---|---|
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
---|---|---|---|---|---|
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Null pointer dereferenceCWE: CWE-476 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍
Local: Yes
Remote: No
Availability: 🔍
Status: Unproven
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
---|---|---|---|---|
Today | unlock | unlock | unlock | unlock |
Nessus ID: 84252
Nessus Name: Debian DLA-246-2 : linux-2.6 regression update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍
OpenVAS ID: 865937
OpenVAS Name: CentOS Update for kernel CESA-2015:1221 centos6
OpenVAS File: 🔍
OpenVAS Family: 🔍
Qualys ID: 🔍
Qualys Name: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: PatchStatus: 🔍
0-Day Time: 🔍
Patch: git.kernel.org
Timeline
01/01/2013 🔍09/11/2014 🔍
03/13/2015 🔍
03/13/2015 🔍
03/17/2015 🔍
06/18/2015 🔍
08/03/2015 🔍
05/02/2016 🔍
04/15/2022 🔍
Sources
Vendor: kernel.orgAdvisory: c290f8358acaeffd8e0c551ddcc24d1206143376
Status: Confirmed
Confirmation: 🔍
CVE: CVE-2011-5321 (🔍)
X-Force: 101588 - Linux Kernel terminal device denial of service
Vulnerability Center: 51710 - Linux Kernel Local DoS via a NULL Pointer Dereference in the Kernel\x27s Virtual Console Implementation, Low
SecurityFocus: 69768 - Linux Kernel CVE-2014-3184 Multiple Local Denial Of Service Vulnerabilities
See also: 🔍
Entry
Created: 03/17/2015 09:35Updated: 04/15/2022 15:20
Changes: 03/17/2015 09:35 (67), 09/10/2017 10:42 (9), 04/15/2022 15:07 (4), 04/15/2022 15:14 (11), 04/15/2022 15:20 (1)
Complete: 🔍
Cache ID: 3:014:103
No comments yet. Languages: en.
Please log in to comment.