Linux Kernel up to 3.12.4 net/ipv4/ping.c input validation

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.
5.4$0-$5k0.00

A vulnerability classified as problematic has been found in Linux Kernel up to 3.12.4 (Operating System). This affects an unknown code block of the file net/ipv4/ping.c. The manipulation with an unknown input leads to a input validation vulnerability. CWE is classifying the issue as CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. This is going to have an impact on confidentiality. The summary by CVE is:

The Linux kernel before 3.12.4 updates certain length values before ensuring that associated data structures have been initialized, which allows local users to obtain sensitive information from kernel stack memory via a (1) recvfrom, (2) recvmmsg, or (3) recvmsg system call, related to net/ipv4/ping.c, net/ipv4/raw.c, net/ipv4/udp.c, net/ipv6/raw.c, and net/ipv6/udp.c.

The weakness was presented 01/07/2014 (oss-sec). The advisory is shared at openwall.com. This vulnerability is uniquely identified as CVE-2013-7263 since 01/05/2014. The exploitability is told to be easy. An attack has to be approached locally. No form of authentication is needed for exploitation. Technical details are known, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 72745 (Amazon Linux AMI : kernel (ALAS-2014-289)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Amazon Linux Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 167678 (SUSE Enterprise Linux Security update for Linux kernel (SUSE-SU-2015:0652-1)).

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 (90115) and Tenable (72745). See 10840, 11712, 11755 and 11756 for similar entries.

Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.2
VulDB Meta Temp Score: 5.4

VulDB Base Score: 6.2
VulDB Temp Score: 5.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
unlockunlockunlockunlockunlockunlock
unlockunlockunlockunlockunlockunlock
unlockunlockunlockunlockunlockunlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
ATT&CK: Unknown

Local: Yes
Remote: No

Availability: 🔍
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Dayunlockunlockunlockunlock
Todayunlockunlockunlockunlock

Nessus ID: 72745
Nessus Name: Amazon Linux AMI : kernel (ALAS-2014-289)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 881879
OpenVAS Name: CentOS Update for kernel CESA-2014:0159 centos6
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍
Patch: git.kernel.org

Timelineinfo

11/28/2013 🔍
11/28/2013 +0 days 🔍
01/05/2014 +38 days 🔍
01/06/2014 +1 days 🔍
01/06/2014 +0 days 🔍
01/07/2014 +1 days 🔍
02/11/2014 +35 days 🔍
02/17/2014 +6 days 🔍
03/02/2014 +13 days 🔍
06/09/2021 +2656 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: openwall.com
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2013-7263 (🔍)
OVAL: 🔍

X-Force: 90115 - Linux Kernel recvfrom information disclosure, Medium Risk
Vulnerability Center: 43301 - Linux Kernel before 3.12.4 Local Information Disclosure Vulnerability from Kernel Stack Memory, Medium
SecurityFocus: 64686 - Linux Kernel CVE-2013-7263 Multiple Information Disclosure Vulnerabilities
Secunia: 55882 - Linux Kernel "recvmsg()" and "recvfrom()" Information Disclosure Weakn, Not Critical

See also: 🔍

Entryinfo

Created: 02/11/2014 09:00
Updated: 06/09/2021 08:00
Changes: 02/11/2014 09:00 (79), 05/21/2017 14:03 (4), 06/09/2021 08:00 (3)
Complete: 🔍

Discussion

No comments yet. Languages: en.

Please log in to comment.

Do you know our Splunk app?

Download it now for free!