Linux Kernel AIO Interface fs/aio.c integer overflow

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6.8$0-$5k0.00

A vulnerability classified as critical has been found in Linux Kernel (Operating System) (the affected version unknown). This affects some unknown functionality of the file fs/aio.c of the component AIO Interface. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-190. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was presented 03/01/2016 as confirmed mailinglist post (oss-sec). The advisory is shared at seclists.org. This vulnerability is uniquely identified as CVE-2015-8830 since 03/01/2016. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details are known, but no exploit is available. The reason for this vulnerability is this part of code:

static ssize_t aio_setup_single_vector(struct kiocb *kiocb)

The vulnerability scanner Nessus provides a plugin with the ID 91090 (Ubuntu 14.04 LTS : linux-lts-utopic vulnerabilities (USN-2969-1)), 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 local. The commercial vulnerability scanner Qualys is able to test this issue with plugin 157849 (Oracle Enterprise Linux Security Update for kernel (ELSA-2018-3083)).

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

static ssize_t aio_setup_single_vector(int type, struct file * file, struct kiocb *kiocb)

The vulnerability is also documented in the databases at SecurityFocus (BID 103960), X-Force (111186) and Tenable (91090). See 81152, 81363, 81364 and 81365 for similar entries.

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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: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2infoedit

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Exploitinginfoedit

Class: Memory corruption
CWE: CWE-190
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Unproven

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 91090
Nessus Name: Ubuntu 14.04 LTS : linux-lts-utopic vulnerabilities (USN-2969-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 703503
OpenVAS Name: Debian Security Advisory DSA 3503-1 (linux - security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍

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Qualys Name: 🔍

Threat Intelligenceinfoedit

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Countermeasuresinfoedit

Recommended: Patch
Status: 🔍

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Patch: git.kernel.org

Timelineinfoedit

03/01/2016 🔍
03/01/2016 +0 days 🔍
03/03/2016 +1 days 🔍
05/02/2016 +60 days 🔍
05/09/2016 +6 days 🔍
05/12/2016 +3 days 🔍
09/21/2018 +862 days 🔍

Sourcesinfoedit

Vendor: https://www.kernel.org/

Advisory: seclists.org
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2015-8830 (🔍)
OVAL: 🔍

SecurityFocus: 103960
X-Force: 111186 - Linux Kernel AIO interface integer overflow

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Entryinfoedit

Created: 03/03/2016 10:53 AM
Updated: 09/21/2018 08:54 AM
Changes: (18) vulnerability_cvss2_nvd_av vulnerability_cvss2_nvd_ac vulnerability_cvss2_nvd_au vulnerability_cvss2_nvd_ci vulnerability_cvss2_nvd_ii vulnerability_cvss2_nvd_ai vulnerability_cvss3_vuldb_av vulnerability_cvss3_vuldb_ac vulnerability_cvss3_vuldb_pr vulnerability_cvss3_vuldb_ui vulnerability_cvss3_vuldb_s vulnerability_cvss3_vuldb_c vulnerability_cvss3_vuldb_i vulnerability_cvss3_vuldb_a advisory_confirm_url countermeasure_date source_cve_assigned source_oval_id
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