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 was found in Linux Kernel up to 4.17.3. The impacted element is an unknown function of the file fs/f2fs/super.c. The manipulation results in out-of-bounds. This vulnerability is cataloged as CVE-2018-13097. The attack must be initiated from a local position. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability classified as problematic has been found in Linux Kernel up to 4.17.3 (Operating System). Affected is an unknown function of the file fs/f2fs/super.c. The manipulation with an unknown input leads to a out-of-bounds vulnerability. CWE is classifying the issue as CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. This is going to have an impact on availability. CVE summarizes:

An issue was discovered in fs/f2fs/super.c in the Linux kernel through 4.17.3. There is an out-of-bounds read or a divide-by-zero error for an incorrect user_block_count in a corrupted f2fs image, leading to a denial of service (BUG).

The bug was discovered 05/09/2018. The weakness was shared 07/03/2018 by Felix Wilhelm (Website). The advisory is shared for download at bugzilla.kernel.org. This vulnerability is traded as CVE-2018-13097 since 07/03/2018. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 55 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 106963†). The entries VDB-113823, VDB-120203, VDB-120205 and VDB-120207 are related to this item. VulDB is the best source for vulnerability data and more expert information about this specific topic.

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

05/09/2018 🔍
07/03/2018 +54 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 🔍
02/07/2019 +112 days 🔍
03/29/2023 +1511 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: USN-3932-1
Researcher: Felix Wilhelm
Status: Confirmed

CVE: CVE-2018-13097 (🔍)
GCVE (CVE): GCVE-0-2018-13097
GCVE (VulDB): GCVE-100-120204
SecurityFocus: 106963 - Linux Kernel CVE-2019-7222 Local Information Disclosure Vulnerability

See also: 🔍

Entryinfo

Created: 07/03/2018 17:47
Updated: 03/29/2023 18:29
Changes: 07/03/2018 17:47 (75), 02/24/2020 10:15 (6), 03/29/2023 18:29 (5)
Complete: 🔍
Cache ID: 216:6F9:103

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