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CVE-2018-20855

Good to know:

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Date: July 25, 2019

An issue was discovered in the Linux kernel before 4.18.7. In create_qp_common in drivers/infiniband/hw/mlx5/qp.c, mlx5_ib_create_qp_resp was never initialized, resulting in a leak of stack memory to userspace.

Language: C

Severity Score

Related Resources (10)

http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00056.html
https://people.canonical.com/~ubuntu-security/cve/CVE-2018-20855
https://github.com/torvalds/linux/commit/0625b4ba1a5d4703c7fb01c497bd6c156908af00
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.18.7
https://access.redhat.com/security/cve/CVE-2018-20855
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=0625b4ba1a5d4703c7fb01c497bd6c156908af00
https://nvd.nist.gov/vuln/detail/CVE-2018-20855
http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00055.html
https://security.netapp.com/advisory/ntap-20190905-0002/
https://www.mend.io/vulnerability-database/CVE-2018-20855

Severity Score

Weakness Type (CWE)

Improper Restriction of Operations within the Bounds of a Memory Buffer

CWE-119

Top Fix

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Upgrade Version

Upgrade to version linux-yocto - 4.8.12+gitAUTOINC+926c93ae07_021b4aef55;linux-yocto - 4.10+gitAUTOINC+805ea440c7_b259a5d744

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CVSS v3.1

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

CVSS v2

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

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