CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
7.3 | $0-$5k | 0.00 |
A vulnerability classified as critical has been found in Linux Kernel (Operating System) (affected version not known). 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 integer overflow vulnerability. CWE is classifying the issue as CWE-190. The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control. 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 l. 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 X-Force (111186) and Tenable (91090). See 81152, 81363, 81364 and 81365 for similar entries.
Product
Type
Vendor
Name
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 7.8VulDB Meta Temp Score: 7.3
VulDB Base Score: 7.8
VulDB Temp Score: 6.8
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 7.8
NVD Vector: 🔍
CVSSv2
AV | AC | Au | C | I | A |
---|---|---|---|---|---|
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
---|---|---|---|---|---|
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Integer overflowCWE: CWE-190 / CWE-189
ATT&CK: Unknown
Local: No
Remote: Yes
Availability: 🔍
Status: Unproven
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
---|---|---|---|---|
Today | unlock | unlock | unlock | unlock |
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: 🔍
Qualys ID: 🔍
Qualys Name: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: PatchStatus: 🔍
Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍
Patch: git.kernel.org
Timeline
03/01/2016 🔍03/01/2016 🔍
03/03/2016 🔍
05/02/2016 🔍
05/09/2016 🔍
05/12/2016 🔍
07/09/2022 🔍
Sources
Vendor: kernel.orgAdvisory: USN-2969-1
Status: Confirmed
Confirmation: 🔍
CVE: CVE-2015-8830 (🔍)
OVAL: 🔍
X-Force: 111186 - Linux Kernel AIO interface integer overflow
SecurityFocus: 103960
See also: 🔍
Entry
Created: 03/03/2016 10:53Updated: 07/09/2022 06:28
Changes: 03/03/2016 10:53 (66), 09/21/2018 08:54 (18), 07/09/2022 06:18 (4), 07/09/2022 06:28 (1)
Complete: 🔍
No comments yet. Languages: en.
Please log in to comment.