CVE-2019-8956

high
New! CVE Severity Now Using CVSS v3

The calculated severity for CVEs has been updated to use CVSS v3 by default. CVEs that do not have a CVSS v3 score will fall back CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Description

In the Linux Kernel before versions 4.20.8 and 4.19.21 a use-after-free error in the "sctp_sendmsg()" function (net/sctp/socket.c) when handling SCTP_SENDALL flag can be exploited to corrupt memory.

References

https://secuniaresearch.flexerasoftware.com/secunia_research/2019-5/

https://git.kernel.org/cgit/linux/kernel/git/stable/linux-stable.git/commit/?id=ba59fb0273076637f0add4311faa990a5eec27c0

https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.20.8

https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.21

https://usn.ubuntu.com/3930-2/

https://usn.ubuntu.com/3930-1/

https://support.f5.com/csp/article/K12671141

Details

Source: MITRE

Published: 2019-04-01

Updated: 2021-07-21

Type: CWE-416

Risk Information

CVSS v2

Base Score: 7.2

Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C

Impact Score: 10

Exploitability Score: 3.9

Severity: HIGH

CVSS v3

Base Score: 7.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Impact Score: 5.9

Exploitability Score: 1.8

Severity: HIGH

Tenable Plugins

View all (4 total)

IDNameProductFamilySeverity
134387EulerOS 2.0 SP8 : kernel (EulerOS-SA-2020-1186)NessusHuawei Local Security Checks
critical
125588EulerOS Virtualization for ARM 64 3.0.2.0 : kernel (EulerOS-SA-2019-1636)NessusHuawei Local Security Checks
high
123677Ubuntu 18.04 LTS : linux-hwe, linux-azure vulnerabilities (USN-3930-2)NessusUbuntu Local Security Checks
high
123676Ubuntu 18.10 : linux, linux-aws, linux-azure, linux-gcp, linux-kvm, linux-raspi2 (USN-3930-1)NessusUbuntu Local Security Checks
high