CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
4.3 | $0-$5k | 0.00 |
A vulnerability, which was classified as problematic, was found in Linux Kernel up to 4.17.3 (Operating System). This affects an unknown part of the file fs/f2fs/super.c. The manipulation with an unknown input leads to a divide by zero vulnerability. CWE is classifying the issue as CWE-369. The product divides a value by zero. This is going to have an impact on availability. The summary by CVE is:
An issue was discovered in fs/f2fs/super.c in the Linux kernel through 4.17.3, which does not properly validate secs_per_zone in a corrupted f2fs image, as demonstrated by a divide-by-zero error.
The bug was discovered 06/28/2018. The weakness was disclosed 07/03/2018 (Website). It is possible to read the advisory at securityfocus.com. This vulnerability is uniquely identified as CVE-2018-13100 since 07/03/2018. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit.
The vulnerability was handled as a non-public zero-day exploit for at least 5 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 118194 (openSUSE Security Update : the Linux Kernel (openSUSE-2018-1184)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 171824 (OpenSUSE Security Update for the Linux Kernel (openSUSE-SU-2018:3202-1)).
Upgrading eliminates this vulnerability. A possible mitigation has been published 4 months after the disclosure of the vulnerability.
The vulnerability is also documented in the vulnerability database at Tenable (118194). The entries 113823, 120203, 120204 and 120205 are pretty similar.
Product
Type
Vendor
Name
Version
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: 4.4VulDB Meta Temp Score: 4.3
VulDB Base Score: 3.3
VulDB Temp Score: 3.2
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 5.5
NVD Vector: 🔍
CVSSv2
AV | AC | Au | C | I | A |
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💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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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: Divide by zeroCWE: CWE-369 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
---|---|---|---|---|
Today | unlock | unlock | unlock | unlock |
Nessus ID: 118194
Nessus Name: openSUSE Security Update : the Linux Kernel (openSUSE-2018-1184)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Qualys ID: 🔍
Qualys Name: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍
Patch: git.kernel.org
Timeline
06/22/2018 🔍06/28/2018 🔍
07/03/2018 🔍
07/03/2018 🔍
07/03/2018 🔍
07/03/2018 🔍
10/17/2018 🔍
10/18/2018 🔍
04/03/2023 🔍
Sources
Vendor: kernel.orgAdvisory: 151420⛔
Status: Confirmed
CVE: CVE-2018-13100 (🔍)
SecurityFocus: 104679 - Linux Kernel 'fs/f2fs/super.c' Local Denial of Service Vulnerability
See also: 🔍
Entry
Created: 07/03/2018 17:48Updated: 04/03/2023 06:43
Changes: 07/03/2018 17:48 (75), 02/24/2020 10:32 (5), 04/03/2023 06:30 (5), 04/03/2023 06:43 (1)
Complete: 🔍
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