Linux Kernel 3.4.70/3.10.20/3.11.10/3.12.1 trace_event_perf.c perf_trace_event_perm access control
|CVSS Meta Temp Score|
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
|Current Exploit Price (≈)|
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
|CTI Interest Score|
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
A vulnerability was found in Linux Kernel 3.4.70/3.10.20/3.11.10/3.12.1 (Operating System). It has been declared as problematic. Affected by this vulnerability is the function
perf_trace_event_perm of the file kernel/trace/trace_event_perf.c. The manipulation with an unknown input leads to a privilege escalation vulnerability. The CWE definition for the vulnerability is CWE-264. As an impact it is known to affect confidentiality, and integrity.
The weakness was published 11/06/2013 by Dave Jones and Vince Weaver as perf/ftrace: Fix paranoid level for enabling function tracer as confirmed git commit (GIT Repository). The advisory is shared at git.kernel.org. The public release has been coordinated with Linux. This vulnerability is known as CVE-2013-2930 since 04/11/2013. An attack has to be approached locally. The exploitation doesn't need any form of authentication. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1068 for this issue.
The vulnerability scanner Nessus provides a plugin with the ID 71797 (Ubuntu 12.10 : linux vulnerabilities (USN-2071-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Ubuntu Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 195833 (Ubuntu Security Notification for Linux-lts-saucy Vulnerabilities (USN-2070-1)).
Upgrading to version 3.4.71, 3.10.21, 3.11.10 or 3.12.2 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published immediately after the disclosure of the vulnerability.
The vulnerability is also documented in the databases at SecurityFocus (BID 62740), X-Force (89832), Vulnerability Center (SBV-42698) and Tenable (71797). Similar entries are available at 10574, 11315, 11317 and 11491.
CVSSv3VulDB Meta Base Score: 5.1
VulDB Meta Temp Score: 4.9
VulDB Base Score: 5.1
VulDB Temp Score: 4.9
VulDB Vector: 🔍
VulDB Reliability: 🔍
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
ExploitingClass: Privilege escalation
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔍
Nessus ID: 71797
Nessus Name: Ubuntu 12.10 : linux vulnerabilities (USN-2071-1)
Nessus File: 🔍
Nessus Family: 🔍
Nessus Port: 🔍
OpenVAS ID: 841671
OpenVAS Name: Ubuntu Update for linux-lts-quantal USN-2068-1
OpenVAS File: 🔍
OpenVAS Family: 🔍
Qualys ID: 🔍
Qualys Name: 🔍
Threat IntelligenceThreat: 🔍
Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍
Upgrade: Kernel 3.4.71/3.10.21/3.11.10/3.12.2
11/06/2013 +209 days 🔍
11/06/2013 +0 days 🔍
11/06/2013 +0 days 🔍
12/05/2013 +29 days 🔍
12/09/2013 +4 days 🔍
12/23/2013 +14 days 🔍
01/05/2014 +13 days 🔍
04/10/2017 +1191 days 🔍
05/18/2017 +38 days 🔍
Advisory: perf/ftrace: Fix paranoid level for enabling function tracer
Researcher: Dave Jones/Vince Weaver
CVE: CVE-2013-2930 (🔍)
Vulnerability Center: 42698 - Linux kernel before 3.12.2 Local Security Bypass Vulnerability via a Crafted Application, Low
See also: 🔍
EntryCreated: 12/05/2013 09:36 AM
Updated: 05/18/2017 05:15 PM
Changes: (2) advisory_confirm_url source_oval_id
Want to stay up to date on a daily basis?
Enable the mail alert feature now!