Linux Kernel up to 4.17.3 fs/f2fs/inode.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, which was classified as problematic, has been found in Linux Kernel up to 4.17.3. This affects an unknown function of the file fs/f2fs/inode.c. This manipulation causes out-of-bounds. This vulnerability is registered as CVE-2018-13098. The attack needs to be launched locally. No exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic was found in Linux Kernel up to 4.17.3 (Operating System). Affected by this vulnerability is an unknown functionality of the file fs/f2fs/inode.c. The manipulation with an unknown input leads to a out-of-bounds vulnerability. The CWE definition for the vulnerability is CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect availability. The summary by CVE is:

An issue was discovered in fs/f2fs/inode.c in the Linux kernel through 4.17.3. A denial of service (slab out-of-bounds read and BUG) can occur for a modified f2fs filesystem image in which FI_EXTRA_ATTR is set in an inode.

The bug was discovered 06/28/2018. The weakness was published 07/03/2018 (Website). The advisory is shared at bugzilla.kernel.org. This vulnerability is known as CVE-2018-13098 since 07/03/2018. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available.

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 databases at Tenable (118194) and SecurityFocus (BID 103348†). Similar entries are available at VDB-113823, VDB-114233, VDB-120203 and VDB-120204. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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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

03/08/2018 🔍
06/28/2018 +112 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-4094-1
Status: Confirmed

CVE: CVE-2018-13098 (🔍)
GCVE (CVE): GCVE-0-2018-13098
GCVE (VulDB): GCVE-100-120205
SecurityFocus: 103348 - Linux Kernel 'drivers/scsi/libsas/sas_expander.c' Local Denial of Service Vulnerability

See also: 🔍

Entryinfo

Created: 07/03/2018 17:47
Updated: 03/29/2023 18:37
Changes: 07/03/2018 17:47 (75), 02/24/2020 10:21 (5), 03/29/2023 18:37 (5)
Complete: 🔍
Cache ID: 216:C20:103

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