Linux Kernel up to 4.17.3 fs/f2fs/super.c out-of-bounds

CVSS Meta Temp Score
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CTI Interest Score
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4.3$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in Linux Kernel up to 4.17.3. The affected element is an unknown function of the file fs/f2fs/super.c. The manipulation leads to out-of-bounds. This vulnerability is listed as CVE-2018-13096. The attack must be carried out locally. There is no available exploit. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel up to 4.17.3 (Operating System). It has been rated as problematic. This issue affects some unknown processing of the file fs/f2fs/super.c. The manipulation with an unknown input leads to a out-of-bounds vulnerability. Using CWE to declare the problem leads to CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. Impacted is availability. The summary by CVE is:

An issue was discovered in fs/f2fs/super.c in the Linux kernel through 4.17.3. A denial of service (out-of-bounds memory access and BUG) can occur upon encountering an abnormal bitmap size when mounting a crafted f2fs image.

The bug was discovered 06/28/2018. The weakness was presented 07/03/2018 (Website). It is possible to read the advisory at bugzilla.kernel.org. The identification of this vulnerability is CVE-2018-13096 since 07/03/2018. The attack may be initiated remotely. No form of authentication is needed for a successful 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 197306 (Ubuntu Security Notification for Linux, Linux-aws, Linux-kvm, Linux-raspi2, Linux-snapdragon Vulnerabilities (USN-3821-1)).

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 databases at Tenable (118194) and SecurityFocus (BID 104671†). See VDB-120162, VDB-120204, VDB-120205 and VDB-120207 for similar entries. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.4
VulDB 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: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Out-of-bounds
CWE: CWE-125 / CWE-119
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: 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 Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Patch: git.kernel.org

Timelineinfo

06/27/2018 🔍
06/28/2018 +1 days 🔍
07/03/2018 +4 days 🔍
07/03/2018 +0 days 🔍
07/03/2018 +0 days 🔍
07/03/2018 +0 days 🔍
10/17/2018 +106 days 🔍
10/18/2018 +1 days 🔍
03/29/2023 +1623 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: USN-3821-1
Status: Confirmed

CVE: CVE-2018-13096 (🔍)
GCVE (CVE): GCVE-0-2018-13096
GCVE (VulDB): GCVE-100-120203
SecurityFocus: 104671 - Linux Kernel CVE-2018-13053 Local Integer Overflow Vulnerability

See also: 🔍

Entryinfo

Created: 07/03/2018 17:47
Updated: 03/29/2023 18:21
Changes: 07/03/2018 17:47 (75), 02/24/2020 10:07 (5), 03/29/2023 18:21 (5)
Complete: 🔍
Cache ID: 216:614:103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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