Linux Kernel up to 4.16 hns_roce_main.c hns_roce_alloc_ucontext initialization

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.3$0-$5k0.00

Summaryinfo

A vulnerability has been found in Linux Kernel up to 4.16 and classified as problematic. Affected is the function hns_roce_alloc_ucontext of the file drivers/infiniband/hw/hns/hns_roce_main.c. Performing a manipulation results in initialization. This vulnerability was named CVE-2019-16921. The attack may be initiated remotely. There is no available exploit. The affected component should be upgraded.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Linux Kernel up to 4.16 (Operating System). This affects the function hns_roce_alloc_ucontext of the file drivers/infiniband/hw/hns/hns_roce_main.c. The manipulation with an unknown input leads to a initialization vulnerability. CWE is classifying the issue as CWE-665. The product does not initialize or incorrectly initializes a resource, which might leave the resource in an unexpected state when it is accessed or used. This is going to have an impact on confidentiality. The summary by CVE is:

In the Linux kernel before 4.17, hns_roce_alloc_ucontext in drivers/infiniband/hw/hns/hns_roce_main.c does not initialize the resp data structure, which might allow attackers to obtain sensitive information from kernel stack memory, aka CID-df7e40425813.

The weakness was presented 09/27/2019. This vulnerability is uniquely identified as CVE-2019-16921 since 09/27/2019. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details of the vulnerability are known, but there is no available exploit.

Upgrading to version 4.17 eliminates this vulnerability.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

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

NVD Base Score: 7.5
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: Initialization
CWE: CWE-665
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

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 4.17
Patch: git.kernel.org

Timelineinfo

09/27/2019 🔍
09/27/2019 +0 days 🔍
09/27/2019 +0 days 🔍
12/28/2023 +1553 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: df7e40425813c50cd252e6f5e348a81ef1acae56
Status: Not defined

CVE: CVE-2019-16921 (🔍)
GCVE (CVE): GCVE-0-2019-16921
GCVE (VulDB): GCVE-100-142383

Entryinfo

Created: 09/27/2019 18:06
Updated: 12/28/2023 14:36
Changes: 09/27/2019 18:06 (39), 09/10/2020 21:21 (18), 12/28/2023 14:36 (6)
Complete: 🔍
Cache ID: 216:18B:103

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