Linux Kernel 3.8.0/3.8.1/3.8.2/3.8.3 sctp_getsockopt_assoc_stats input validation

CVSS Meta Temp Score
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CTI Interest Score
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8.4$0-$5k0.00

Summaryinfo

A vulnerability classified as critical was found in Linux Kernel 3.8.0/3.8.1/3.8.2/3.8.3. The impacted element is the function sctp_getsockopt_assoc_stats. The manipulation results in input validation. This vulnerability was named CVE-2013-1828. In addition, an exploit is available. A patch should be applied to remediate this issue.

Detailsinfo

A vulnerability classified as critical has been found in Linux Kernel 3.8.0/3.8.1/3.8.2/3.8.3 (Operating System). Affected is the function sctp_getsockopt_assoc_stats. 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, integrity, and availability. CVE summarizes:

The sctp_getsockopt_assoc_stats function in net/sctp/socket.c in the Linux kernel before 3.8.4 does not validate a size value before proceeding to a copy_from_user operation, which allows local users to gain privileges via a crafted application that contains an SCTP_GET_ASSOC_STATS getsockopt system call.

The weakness was presented 03/07/2013 by Petr Matousek with grsecurity as confirmed git commit (GIT Repository). The advisory is available at git.kernel.org. The vendor was not involved in the coordination of the public release. This vulnerability is traded as CVE-2013-1828 since 02/19/2013. The exploitability is told to be easy. Local access is required to approach this attack. The exploitation doesn't require any form of authentication. Technical details and a public exploit are known.

A public exploit has been developed by Petr Matousek in ANSI C and been published 6 days after the advisory. The exploit is shared for download at grsecurity.net. It is declared as proof-of-concept. As 0-day the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 65183 (Fedora 18 : kernel-3.8.2-206.fc18 (2013-3630)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks.

Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (82664), Exploit-DB (24747), Tenable (65183), SecurityFocus (BID 58389†) and OSVDB (91042†). See VDB-7901, VDB-63775, VDB-63774 and VDB-63773 for similar entries. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.3
VulDB Meta Temp Score: 8.4

VulDB Base Score: 9.3
VulDB Temp Score: 8.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Author: Petr Matousek
Programming Language: 🔍
Download: 🔍

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Current Price Estimation: 🔍

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Nessus ID: 65183
Nessus Name: Fedora 18 : kernel-3.8.2-206.fc18 (2013-3630)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 865961
OpenVAS Name: Fedora Update for kernel FEDORA-2013-10695
OpenVAS File: 🔍
OpenVAS Family: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍
Exploit Delay Time: 🔍

Patch: git.kernel.org

Timelineinfo

02/19/2013 🔍
02/27/2013 +8 days 🔍
03/07/2013 +8 days 🔍
03/07/2013 +0 days 🔍
03/07/2013 +0 days 🔍
03/11/2013 +4 days 🔍
03/13/2013 +2 days 🔍
03/13/2013 +0 days 🔍
03/22/2013 +9 days 🔍
03/27/2013 +5 days 🔍
11/24/2024 +4260 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Researcher: Petr Matousek
Organization: grsecurity
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2013-1828 (🔍)
GCVE (CVE): GCVE-0-2013-1828
GCVE (VulDB): GCVE-100-7938
X-Force: 82664
SecurityFocus: 58389 - Linux Kernel 'SCTP_GET_ASSOC_STATS()' Stack-Based Buffer Overflow Vulnerability
OSVDB: 91042
Vulnerability Center: 38926 - Linux Kernel Before 3.8.4 Local Privilege Escalation due to No Validation of a Size Value, High

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 03/11/2013 12:29
Updated: 11/24/2024 13:41
Changes: 03/11/2013 12:29 (80), 04/26/2017 17:53 (6), 05/06/2021 08:20 (3), 11/24/2024 13:41 (14)
Complete: 🔍
Committer:
Cache ID: 216:369:103

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