Linux Kernel up to 5.5.10 Slowpath mm/slub.c kmem_cache_alloc_bulk race condition

CVSS Meta Temp Score
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CTI Interest Score
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6.0$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in Linux Kernel up to 5.5.10. Affected by this issue is the function kmem_cache_alloc_bulk of the file mm/slub.c of the component Slowpath Handler. The manipulation leads to an unknown weakness. This vulnerability is traded as CVE-2020-29370. There is no exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel up to 5.5.10 (Operating System). It has been rated as problematic. This issue affects the function kmem_cache_alloc_bulk of the file mm/slub.c of the component Slowpath Handler. Using CWE to declare the problem leads to 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. The impact remains unknown.

The weakness was shared 11/28/2020. It is possible to read the advisory at bugs.chromium.org. The identification of this vulnerability is CVE-2020-29370. Technical details of the vulnerability are known, but there is no available exploit.

Upgrading to version 5.5.11 eliminates this vulnerability. The upgrade is hosted for download at cdn.kernel.org. Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.2
VulDB Meta Temp Score: 6.1

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
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
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Partially

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 5.5.11
Patch: git.kernel.org

Timelineinfo

11/28/2020 🔍
11/28/2020 +0 days 🔍
11/28/2020 +0 days 🔍
12/11/2020 +13 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: bugs.chromium.org
Status: Confirmed

CVE: CVE-2020-29370 (🔍)
GCVE (CVE): GCVE-0-2020-29370
GCVE (VulDB): GCVE-100-165419

Entryinfo

Created: 11/28/2020 18:15
Updated: 12/11/2020 09:40
Changes: 11/28/2020 18:15 (38), 11/28/2020 18:16 (4), 12/11/2020 09:35 (2), 12/11/2020 09:40 (20)
Complete: 🔍
Cache ID: 216::103

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