Linux Kernel up to 4.17.10 f2fs Image fs/f2fs/inline.c truncate_inline_inode memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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5.4$5k-$25k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Linux Kernel up to 4.17.10. The affected element is the function truncate_inline_inode of the file fs/f2fs/inline.c of the component f2fs Image Handler. The manipulation leads to memory corruption. This vulnerability is traded as CVE-2018-14615. An attack has to be approached locally. There is no exploit available.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Linux Kernel up to 4.17.10 (Operating System). This issue affects the function truncate_inline_inode of the file fs/f2fs/inline.c of the component f2fs Image Handler. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

An issue was discovered in the Linux kernel through 4.17.10. There is a buffer overflow in truncate_inline_inode() in fs/f2fs/inline.c when umounting an f2fs image, because a length value may be negative.

The bug was discovered 07/08/2018. The weakness was shared 07/27/2018 (Website). The advisory is shared at securityfocus.com. The identification of this vulnerability is CVE-2018-14615 since 07/26/2018. 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 are known, but no exploit is available. The price for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 08/06/2025).

The vulnerability was handled as a non-public zero-day exploit for at least 19 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 243380 (Linux Distros Unpatched Vulnerability : CVE-2018-14615), which helps to determine the existence of the flaw in a target environment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at Tenable (243380) and SecurityFocus (BID 104917†). The entries VDB-115503, VDB-122243, VDB-122244 and VDB-122245 are related to this item. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.4

VulDB Base Score: 5.3
VulDB Temp Score: 5.3
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: Memory corruption
CWE: 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: 243380
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2018-14615

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

07/08/2018 🔍
07/26/2018 +17 days 🔍
07/27/2018 +1 days 🔍
07/27/2018 +0 days 🔍
07/27/2018 +0 days 🔍
07/27/2018 +0 days 🔍
08/06/2025 +2567 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: USN-4094-1⛔
Status: Not defined

CVE: CVE-2018-14615 (🔍)
GCVE (CVE): GCVE-0-2018-14615
GCVE (VulDB): GCVE-100-122249
SecurityFocus: 104917 - Linux Kernel Multiple Denial of Service Vulnerabilities

See also: 🔍

Entryinfo

Created: 07/27/2018 07:59
Updated: 08/06/2025 02:49
Changes: 07/27/2018 07:59 (63), 03/10/2020 16:51 (3), 04/27/2023 08:42 (3), 08/06/2025 02:49 (16)
Complete: 🔍
Cache ID: 216:36C:103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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