Linux Kernel up to 4.5.4 X.25 Call Request net/x25/x25_facilities.c x25_negotiate_facilities information disclosure

CVSS Meta Temp Score
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CTI Interest Score
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7.5$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in Linux Kernel up to 4.5.4. The impacted element is the function x25_negotiate_facilities of the file net/x25/x25_facilities.c of the component X.25 Call Request Handler. The manipulation leads to information disclosure. This vulnerability is documented as CVE-2016-4580. The attack needs to be performed locally. There is not any exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel up to 4.5.4 (Operating System) and classified as critical. This issue affects the function x25_negotiate_facilities of the file net/x25/x25_facilities.c of the component X.25 Call Request Handler. The manipulation with an unknown input leads to a information disclosure vulnerability. Using CWE to declare the problem leads to CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

The x25_negotiate_facilities function in net/x25/x25_facilities.c in the Linux kernel before 4.5.5 does not properly initialize a certain data structure, which allows attackers to obtain sensitive information from kernel stack memory via an X.25 Call Request.

The weakness was released 05/23/2016 (Website). It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2016-4580 since 05/11/2016. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1592 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 91880 (Ubuntu 14.04 LTS : linux vulnerabilities (USN-3018-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Ubuntu Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 168927 (OpenSuSE Security Update for the Linux Kernel (openSUSE-SU-2016:1641-1)).

Upgrading to version 4.5.5 eliminates this vulnerability. A possible mitigation has been published 2 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (91880) and SecurityFocus (BID 90528†). Entries connected to this vulnerability are available at VDB-83139, VDB-87126, VDB-87304 and VDB-87608. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.7
VulDB Meta Temp Score: 7.5

VulDB Base Score: 7.8
VulDB Temp Score: 7.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 91880
Nessus Name: Ubuntu 14.04 LTS : linux vulnerabilities (USN-3018-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 800225
OpenVAS Name: Ubuntu Update for linux-lts-wily USN-3017-3
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: Kernel 4.5.5
Patch: git.kernel.org

Timelineinfo

05/10/2016 🔍
05/11/2016 +1 days 🔍
05/23/2016 +12 days 🔍
05/23/2016 +0 days 🔍
05/24/2016 +1 days 🔍
06/27/2016 +34 days 🔍
06/28/2016 +1 days 🔍
08/22/2022 +2246 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: USN-3018-1
Status: Not defined
Confirmation: 🔍

CVE: CVE-2016-4580 (🔍)
GCVE (CVE): GCVE-0-2016-4580
GCVE (VulDB): GCVE-100-87611

OVAL: 🔍

SecurityFocus: 90528 - Linux Kernel 'net/x25/x25_facilities.c' Local Information Disclosure Vulnerability

See also: 🔍

Entryinfo

Created: 05/24/2016 11:56
Updated: 08/22/2022 09:13
Changes: 05/24/2016 11:56 (70), 12/12/2018 10:13 (14), 08/22/2022 09:11 (4), 08/22/2022 09:13 (1)
Complete: 🔍
Cache ID: 216:FA2:103

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