Linux Kernel up to 5.0.9 fs/cifs/smb2pdu.c SMB2_negotiate out-of-bounds

CVSS Meta Temp Score
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CTI Interest Score
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6.4$0-$5k0.00

Summaryinfo

A vulnerability was found in Linux Kernel up to 5.0.9. It has been declared as critical. Affected by this issue is the function SMB2_negotiate of the file fs/cifs/smb2pdu.c. The manipulation results in out-of-bounds. This vulnerability is reported as CVE-2019-15918. The attack requires a local approach. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel up to 5.0.9 (Operating System). It has been classified as critical. Affected is the function SMB2_negotiate of the file fs/cifs/smb2pdu.c. The manipulation with an unknown input leads to a out-of-bounds vulnerability. CWE is classifying the issue as CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

An issue was discovered in the Linux kernel before 5.0.10. SMB2_negotiate in fs/cifs/smb2pdu.c has an out-of-bounds read because data structures are incompletely updated after a change from smb30 to smb21.

The weakness was disclosed 09/04/2019 (Website). The advisory is shared for download at usn.ubuntu.com. This vulnerability is traded as CVE-2019-15918 since 09/04/2019. The attack needs to be approached locally. The exploitation doesn't require any form of authentication. There are known technical details, but no exploit is available.

Upgrading to version 5.0.10 eliminates this vulnerability.

The entries VDB-140765, VDB-140890, VDB-141092 and VDB-141232 are pretty similar. Once again VulDB remains the best source 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: 6.5
VulDB Meta Temp Score: 6.4

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

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Out-of-bounds
CWE: CWE-125 / CWE-119
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: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kernel 5.0.10
Patch: github.com

Timelineinfo

09/04/2019 🔍
09/04/2019 +0 days 🔍
09/05/2019 +1 days 🔍
12/13/2023 +1560 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: b57a55e2200ede754e4dc9cce4ba9402544b9365
Status: Not defined
Confirmation: 🔍

CVE: CVE-2019-15918 (🔍)
GCVE (CVE): GCVE-0-2019-15918
GCVE (VulDB): GCVE-100-141252
See also: 🔍

Entryinfo

Created: 09/05/2019 09:21
Updated: 12/13/2023 06:52
Changes: 09/05/2019 09:21 (59), 08/12/2020 15:45 (2), 12/13/2023 06:37 (5), 12/13/2023 06:52 (1)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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