Linux Kernel EXT4 File System ext4_update_inline_data out-of-bounds write

CVSS Meta Temp Score
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CTI Interest Score
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5.4$0-$5k0.00

Summaryinfo

A vulnerability was found in Linux Kernel. It has been declared as critical. This issue affects the function ext4_update_inline_data of the component EXT4 File System. Executing a manipulation can lead to out-of-bounds write. This vulnerability is registered as CVE-2018-10880. The attack needs to be launched locally. No exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Linux Kernel (Operating System) (version now known) and classified as critical. This vulnerability affects the function ext4_update_inline_data of the component EXT4 File System. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. The CWE definition for the vulnerability is CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect availability. CVE summarizes:

Linux kernel is vulnerable to a stack-out-of-bounds write in the ext4 filesystem code when mounting and writing to a crafted ext4 image in ext4_update_inline_data(). An attacker could use this to cause a system crash and a denial of service.

The bug was discovered 06/16/2018. The weakness was published 07/25/2018 (Website). The advisory is available at patchwork.ozlabs.org. This vulnerability was named CVE-2018-10880 since 05/09/2018. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. Technical details are known, but there is no available exploit.

The vulnerability was handled as a non-public zero-day exploit for at least 32 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 111165 (Debian DLA-1423-1 : linux-4.9 new package (Spectre)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian 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 even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (111165) and SecurityFocus (BID 106254†). Similar entries are available at VDB-117624, VDB-119386, VDB-119423 and VDB-119915. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.4

VulDB Base Score: 5.5
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: Out-of-bounds write
CWE: CWE-787 / 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: 111165
Nessus Name: Debian DLA-1423-1 : linux-4.9 new package (Spectre)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Patch: git.kernel.org

Timelineinfo

05/09/2018 🔍
06/16/2018 +38 days 🔍
07/18/2018 +32 days 🔍
07/20/2018 +2 days 🔍
07/25/2018 +4 days 🔍
07/25/2018 +0 days 🔍
07/25/2018 +0 days 🔍
12/18/2018 +146 days 🔍
04/25/2023 +1589 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: RHSA-2018:2948
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2018-10880 (🔍)
GCVE (CVE): GCVE-0-2018-10880
GCVE (VulDB): GCVE-100-122170
SecurityFocus: 106254 - Linux Kernel CVE-2018-16882 Local Denial of Service Vulnerability

See also: 🔍

Entryinfo

Created: 07/25/2018 16:32
Updated: 04/25/2023 15:04
Changes: 07/25/2018 16:32 (74), 03/10/2020 08:29 (6), 04/25/2023 15:04 (5)
Complete: 🔍
Cache ID: 216::103

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