Linux Kernel net/llc/sysctl_net_llc.c llc2_timeout_table code

CVSS Meta Temp Score
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CTI Interest Score
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6.8$0-$5k0.00

Summaryinfo

A vulnerability was found in Linux Kernel and classified as problematic. Impacted is the function llc2_timeout_table of the file net/llc/sysctl_net_llc.c. Such manipulation leads to information disclosure. This vulnerability is documented as CVE-2015-2041. The attack needs to be performed locally. There is not any exploit available. It is best practice to apply a patch to resolve this issue.

Detailsinfo

A vulnerability was found in Linux Kernel (Operating System) (the affected version is unknown) and classified as critical. Affected by this issue is the function llc2_timeout_table of the file net/llc/sysctl_net_llc.c. The manipulation with an unknown input leads to a code vulnerability. Using CWE to declare the problem leads to CWE-17. Impacted is confidentiality, integrity, and availability.

The weakness was released 02/20/2015 as confirmed mailinglist post (oss-sec). The advisory is available at seclists.org. This vulnerability is handled as CVE-2015-2041 since 02/20/2015. Local access is required to approach this attack. No form of authentication is required for exploitation. Technical details are known, but there is no available exploit. The following code is the reason for this vulnerability: 

.maxlen		= sizeof(long),

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 and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 196067 (Ubuntu Security Notification for Linux-lts-utopic Vulnerabilities (USN-2564-1)).

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 5 months after the disclosure of the vulnerability. The vulnerability will be addressed with the following lines of code:

.maxlen		= sizeof(sysctl_llc2_ack_timeout),

The vulnerability is also documented in the databases at X-Force (101026), Tenable (84252), SecurityFocus (BID 72729†) and Vulnerability Center (SBV-49952†). bugzilla.redhat.com is providing further details. Entries connected to this vulnerability are available at VDB-69190, VDB-69207, VDB-74021 and VDB-74659. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.8
VulDB Meta Temp Score: 6.8

VulDB Base Score: 7.8
VulDB Temp Score: 6.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Code
CWE: CWE-17
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 84252
Nessus Name: Debian DLA-246-2 : linux-2.6 regression update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 850584
OpenVAS Name: SuSE Update for the openSUSE-SU-2016:0301-1 (kernel)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Patch: 6b8d9117ccb4f81b1244aafa7bc70ef8fa45fc49

Timelineinfo

02/19/2015 🔍
02/19/2015 +0 days 🔍
02/20/2015 +0 days 🔍
02/20/2015 +0 days 🔍
02/25/2015 +5 days 🔍
04/21/2015 +55 days 🔍
05/03/2015 +11 days 🔍
06/17/2015 +45 days 🔍
06/18/2015 +1 days 🔍
03/10/2022 +2457 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: USN-2560-1
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2015-2041 (🔍)
GCVE (CVE): GCVE-0-2015-2041
GCVE (VulDB): GCVE-100-69206

OVAL: 🔍

X-Force: 101026 - Linux Kernel llc2_timeout_table information disclosure
SecurityFocus: 72729 - Linux Kernel 'llc/sysctl_net_llc.c' Local Information Disclosure Vulnerability
Vulnerability Center: 49952 - Linux Kernel before 3.19 Local Information Disclosure or Other Impact via a Sysctl Entry - CVE-2015-2041, Medium

Misc.: 🔍
See also: 🔍

Entryinfo

Created: 02/25/2015 10:55
Updated: 03/10/2022 16:01
Changes: 02/25/2015 10:55 (68), 09/24/2018 08:57 (17), 03/10/2022 16:01 (4)
Complete: 🔍
Cache ID: 216:FF9:103

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