Linux Kernel up to 5.8.7 hugetlb sysctl mm/hugetlb.c race condition

CVSS Meta Temp Score
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CTI Interest Score
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5.9$0-$5k0.00

A vulnerability, which was classified as critical, was found in Linux Kernel up to 5.8.7 (Operating System). This affects an unknown function of the file mm/hugetlb.c of the component hugetlb sysctl Handler. The manipulation with an unknown input leads to a race condition vulnerability. CWE is classifying the issue as CWE-362. The product contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

A race condition between hugetlb sysctl handlers in mm/hugetlb.c in the Linux kernel before 5.8.8 could be used by local attackers to corrupt memory, cause a NULL pointer dereference, or possibly have unspecified other impact, aka CID-17743798d812.

The weakness was published 09/13/2020. This vulnerability is uniquely identified as CVE-2020-25285 since 09/13/2020. Attacking locally is a requirement. The successful exploitation requires a authentication. Technical details of the vulnerability are known, but there is no available exploit.

Upgrading to version 5.8.8 eliminates this vulnerability.

Similar entry is available at 161174.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.1
VulDB Meta Temp Score: 6.0

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.0
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Race condition
CWE: CWE-362
ATT&CK: Unknown

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: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kernel 5.8.8

Timelineinfo

09/13/2020 🔍
09/13/2020 +0 days 🔍
09/14/2020 +1 days 🔍
09/14/2020 +0 days 🔍

Sourcesinfo

Vendor: kernel.org

Status: Not defined

CVE: CVE-2020-25285 (🔍)
See also: 🔍

Entryinfo

Created: 09/14/2020 07:26
Updated: 09/14/2020 07:31
Changes: 09/14/2020 07:26 (41), 09/14/2020 07:31 (18)
Complete: 🔍

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