Linux Kernel int80 Fork access control

CVSS Meta Temp Score
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CTI Interest Score
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5.2$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in Linux Kernel. This affects an unknown part of the component int80 Fork Handler. This manipulation causes access control. The identification of this vulnerability is CVE-2015-2830. There is no exploit available. To fix this issue, it is recommended to deploy a patch.

Detailsinfo

A vulnerability has been found in Linux Kernel (Operating System) (the affected version is unknown) and classified as problematic. Affected by this vulnerability is an unknown code of the component int80 Fork Handler. The manipulation with an unknown input leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-264. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was shared 04/01/2015 by Andrew as confirmed mailinglist post (oss-sec). It is possible to read the advisory at seclists.org. This vulnerability is known as CVE-2015-2830 since 04/02/2015. Attacking locally is a requirement. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

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. The commercial vulnerability scanner Qualys is able to test this issue with plugin 196135 (Ubuntu Security Notification for Linux-ti-omap4 Vulnerabilities (USN-2632-1)).

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 (101994), Tenable (84252), SecurityFocus (BID 73699†), SecurityTracker (ID 1032413†) and Vulnerability Center (SBV-50686†). The entries VDB-69190, VDB-69206, VDB-69207 and VDB-74021 are related to this item. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.2

VulDB Base Score: 5.9
VulDB Temp Score: 5.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Access control
CWE: CWE-264
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: 🔍

OpenVAS ID: 703237
OpenVAS Name: Debian Security Advisory DSA 3237-1 (linux - security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: 956421fbb74c3a6261903f3836c0740187cf038b

Timelineinfo

04/01/2015 🔍
04/01/2015 +0 days 🔍
04/02/2015 +1 days 🔍
04/07/2015 +5 days 🔍
04/26/2015 +19 days 🔍
05/27/2015 +31 days 🔍
05/28/2015 +1 days 🔍
06/24/2015 +27 days 🔍
05/02/2022 +2504 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: USN-2631-1
Researcher: Andrew
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2015-2830 (🔍)
GCVE (CVE): GCVE-0-2015-2830
GCVE (VulDB): GCVE-100-74659

OVAL: 🔍

X-Force: 101994 - Linux Kernel int80 fork privilege escalation
SecurityFocus: 73699 - Linux Kernel 'x86/kernel/entry_64.S' Local Security Bypass Vulnerability
SecurityTracker: 1032413 - Linux Kernel 32-bit Emulation Flaw Lets Local Users Bypass Security Restrictions
Vulnerability Center: 50686 - Linux Kernel before 3.19.2 Local Bypass Restrictions via a Crafted Application, Low

See also: 🔍

Entryinfo

Created: 04/07/2015 12:10
Updated: 05/02/2022 18:45
Changes: 04/07/2015 12:10 (71), 07/01/2017 08:09 (10), 05/02/2022 18:29 (5), 05/02/2022 18:36 (1), 05/02/2022 18:45 (1)
Complete: 🔍
Cache ID: 216:128:103

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