CVE-2019-3837

Published Apr 11, 2019

Last updated 2 years ago

Overview

Description
It was found that the net_dma code in tcp_recvmsg() in the 2.6.32 kernel as shipped in RHEL6 is thread-unsafe. So an unprivileged multi-threaded userspace application calling recvmsg() for the same network socket in parallel executed on ioatdma-enabled hardware with net_dma enabled can leak the memory, crash the host leading to a denial-of-service or cause a random memory corruption.
Source
secalert@redhat.com
NVD status
Analyzed

Social media

Hype score
Not currently trending

Risk scores

CVSS 3.1

Type
Primary
Base score
6.1
Impact score
4.2
Exploitability score
1.8
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H
Severity
MEDIUM

CVSS 3.0

Type
Secondary
Base score
6.1
Impact score
4.2
Exploitability score
1.8
Vector string
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H
Severity
MEDIUM

CVSS 2.0

Type
Primary
Base score
4.9
Impact score
6.9
Exploitability score
3.9
Vector string
AV:L/AC:L/Au:N/C:N/I:N/A:C

Weaknesses

nvd@nist.gov
CWE-362
secalert@redhat.com
CWE-362

Configurations