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CVE-2019-16921

Good to know:

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Date: September 27, 2019

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.

Language: C

Severity Score

Related Resources (5)

https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=df7e40425813c50cd252e6f5e348a81ef1acae56
https://nvd.nist.gov/vuln/detail/CVE-2019-16921
https://people.canonical.com/~ubuntu-security/cve/CVE-2019-16921
https://github.com/torvalds/linux/commit/df7e40425813c50cd252e6f5e348a81ef1acae56
https://www.mend.io/vulnerability-database/CVE-2019-16921

Severity Score

Weakness Type (CWE)

Improper Initialization

CWE-665

Top Fix

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): HIGH
User Interaction (UI): REQUIRED
Scope (S): CHANGED
Confidentiality (C): LOW
Integrity (I): LOW
Availability (A): NONE

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): MEDIUM
Authentication (AU): SINGLE
Confidentiality (C): NONE
Integrity (I): PARTIAL
Availability (A): NONE
Additional information:

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