CVE-2019-19077

kernel: memory leak in bnxt_re_create_srq function in drivers/infiniband/hw/bnxt_re/ib_verbs.c

Severity Score

5.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A memory leak in the bnxt_re_create_srq() function in drivers/infiniband/hw/bnxt_re/ib_verbs.c in the Linux kernel through 5.3.11 allows attackers to cause a denial of service (memory consumption) by triggering copy to udata failures, aka CID-4a9d46a9fe14.

Una pérdida de memoria en la función bnxt_re_create_srq() en el archivo drivers/infiniband/hw/bnxt_re/ib_verbs.c en el kernel de Linux versiones hasta la versión 5.3.11, permite a atacantes causar una denegación de servicio (consumo de memoria) al desencadenar fallos de la función de la copia hacia udata, también se conoce como CID -4a9d46a9fe14.

A memory leak flaw was found in the Broadcom NetXtreme HCA driver in the Linux kernel, in the way it handled resource cleanup on the copy to userspace error. This flaw allows a local attacker to trigger this error and crash the system.

*Credits: N/A

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2019-11-18 CVE Reserved
2019-11-18 CVE Published
2024-08-05 CVE Updated
2024-11-11 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-400: Uncontrolled Resource Consumption
CWE-401: Missing Release of Memory after Effective Lifetime

CAPEC

References (7)

URL	Tag	Source
https://security.netapp.com/advisory/ntap-20191205-0001	Third Party Advisory

URL	Date	SRC

URL	Date	SRC
https://github.com/torvalds/linux/commit/4a9d46a9fe14401f21df69cea97c62396d5fb053	2020-08-24

URL	Date	SRC
http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00029.html	2020-08-24
https://usn.ubuntu.com/4258-1	2020-08-24
https://usn.ubuntu.com/4284-1	2020-08-24
https://access.redhat.com/security/cve/CVE-2019-19077	2020-04-28
https://bugzilla.redhat.com/show_bug.cgi?id=1775724	2020-04-28

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				<= 5.3.11 Search vendor "Linux" for product "Linux Kernel" and version " <= 5.3.11"		-		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				18.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "18.04"		lts		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				19.10 Search vendor "Canonical" for product "Ubuntu Linux" and version "19.10"		-		Affected
Opensuse Search vendor "Opensuse"		Leap Search vendor "Opensuse" for product "Leap"				15.1 Search vendor "Opensuse" for product "Leap" and version "15.1"		-		Affected