Linux Kernel 3.10 overlayfs fs/overlayfs/dir.c ovl_posix_acl_create null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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5.5$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in Linux Kernel 3.10. Affected by this vulnerability is the function ovl_posix_acl_create of the file fs/overlayfs/dir.c of the component overlayfs. This manipulation causes null pointer dereference. This vulnerability is tracked as CVE-2019-10140. The attack is restricted to local execution. No exploit exists.

Detailsinfo

A vulnerability has been found in Linux Kernel 3.10 (Operating System) and classified as critical. Affected by this vulnerability is the function ovl_posix_acl_create of the file fs/overlayfs/dir.c of the component overlayfs. The manipulation with an unknown input leads to a null pointer dereference vulnerability. The CWE definition for the vulnerability is CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. As an impact it is known to affect availability. The summary by CVE is:

A vulnerability was found in Linux kernel's, versions up to 3.10, implementation of overlayfs. An attacker with local access can create a denial of service situation via NULL pointer dereference in ovl_posix_acl_create function in fs/overlayfs/dir.c. This can allow attackers with ability to create directories on overlayfs to crash the kernel creating a denial of service (DOS).

The weakness was disclosed 08/15/2019 as not defined bug report (Bugzilla). It is possible to read the advisory at bugzilla.redhat.com. This vulnerability is known as CVE-2019-10140 since 03/27/2019. Attacking locally is a requirement. A single authentication is required for exploitation. Technical details of the vulnerability are known, but there is no available exploit.

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

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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: 5.5

VulDB Base Score: 5.5
VulDB Temp Score: 5.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CNA Base Score: 5.5
CNA Vector (Red Hat, Inc.): 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

03/27/2019 🔍
08/15/2019 +141 days 🔍
08/16/2019 +1 days 🔍
11/25/2023 +1562 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: RHSA-2019:2029
Status: Not defined
Confirmation: 🔍

CVE: CVE-2019-10140 (🔍)
GCVE (CVE): GCVE-0-2019-10140
GCVE (VulDB): GCVE-100-140107

Entryinfo

Created: 08/16/2019 07:09
Updated: 11/25/2023 15:47
Changes: 08/16/2019 07:09 (60), 07/29/2020 09:49 (1), 11/25/2023 15:47 (13)
Complete: 🔍
Cache ID: 216::103

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