Linux Kernel up to 4.7 kernel/auditsc.c audit_log_single_execve_arg race condition
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
4.6 | $0-$5k | 0.00 |
A vulnerability has been found in Linux Kernel up to 4.7 (Operating System) and classified as problematic. Affected by this vulnerability is the function audit_log_single_execve_arg
of the file kernel/auditsc.c. The manipulation with an unknown input leads to a race condition vulnerability. The CWE definition for the vulnerability is CWE-362. The product contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:
Race condition in the audit_log_single_execve_arg function in kernel/auditsc.c in the Linux kernel through 4.7 allows local users to bypass intended character-set restrictions or disrupt system-call auditing by changing a certain string, aka a "double fetch" vulnerability.
The weakness was presented 08/06/2016 (Website). It is possible to read the advisory at securityfocus.com. This vulnerability is known as CVE-2016-6136 since 07/01/2016. Attacking locally is a requirement. The successful exploitation requires a single authentication. Technical details of the vulnerability are known, but there is no available exploit.
The vulnerability scanner Nessus provides a plugin with the ID 101427 (Virtuozzo 6 : kernel / kernel-abi-whitelists / kernel-debug / etc (VZLSA-2017-0307)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Virtuozzo Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 157314 (Oracle Enterprise Linux Security Update for kernel (ELSA-2016-2574)-Deprecated).
Upgrading eliminates this vulnerability. A possible mitigation has been published 8 months after the disclosure of the vulnerability.
The vulnerability is also documented in the vulnerability database at Tenable (101427). See 82951, 82953, 82963 and 82965 for similar entries.
Product
Type
Vendor
Name
Version
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: 4.7VulDB Meta Temp Score: 4.6
VulDB Base Score: 4.7
VulDB Temp Score: 4.5
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 4.7
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: Race conditionCWE: CWE-362
ATT&CK: Unknown
Local: Yes
Remote: No
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
---|---|---|---|---|
Today | unlock | unlock | unlock | unlock |
Nessus ID: 101427
Nessus Name: Virtuozzo 6 : kernel / kernel-abi-whitelists / kernel-debug / etc (VZLSA-2017-0307)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
OpenVAS ID: 881932
OpenVAS Name: CentOS Update for kernel CESA-2017:0307 centos6
OpenVAS File: 🔍
OpenVAS Family: 🔍
Qualys ID: 🔍
Qualys Name: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍
Patch: git.kernel.org
Timeline
07/01/2016 🔍07/04/2016 🔍
08/06/2016 🔍
08/06/2016 🔍
08/08/2016 🔍
02/24/2017 🔍
07/13/2017 🔍
09/13/2022 🔍
Sources
Vendor: kernel.orgAdvisory: 43761473c254b45883a64441dd0bc85a42f3645c⛔
Status: Confirmed
Confirmation: 🔍
CVE: CVE-2016-6136 (🔍)
OVAL: 🔍
SecurityFocus: 91558 - Linux Kernel CVE-2016-6136 Local Information Disclosure Vulnerability
See also: 🔍
Entry
Created: 08/08/2016 15:24Updated: 09/13/2022 09:49
Changes: 08/08/2016 15:24 (56), 05/28/2019 00:32 (26), 09/13/2022 09:47 (5), 09/13/2022 09:49 (1)
Complete: 🔍
No comments yet. Languages: en.
Please log in to comment.