CVE-2020-16119

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

Use-after-free vulnerability in the Linux kernel exploitable by a local attacker due to reuse of a DCCP socket with an attached dccps_hc_tx_ccid object as a listener after being released. Fixed in Ubuntu Linux kernel 5.4.0-51.56, 5.3.0-68.63, 4.15.0-121.123, 4.4.0-193.224, 3.13.0.182.191 and 3.2.0-149.196.

References

https://launchpad.net/bugs/1883840

https://ubuntu.com/USN-4580-1

https://git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux/+git/focal/commit/?id=01872cb896c76cedeabe93a08456976ab55ad695

https://ubuntu.com/USN-4578-1

https://ubuntu.com/USN-4579-1

https://ubuntu.com/USN-4576-1

https://ubuntu.com/USN-4577-1

https://lore.kernel.org/netdev/[email protected]/T/

https://security.netapp.com/advisory/ntap-20210304-0006/

https://www.debian.org/security/2021/dsa-4978

https://lists.debian.org/debian-lts-announce/2021/10/msg00010.html

https://lists.debian.org/debian-lts-announce/2021/12/msg00012.html

Details

Source: MITRE

Published: 2021-01-14

Updated: 2022-01-01

Type: CWE-416

Risk Information

CVSS v2

Base Score: 4.6

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

Impact Score: 6.4

Exploitability Score: 3.9

Severity: MEDIUM

CVSS v3

Base Score: 7.8

Vector: CVSS:3.1/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 (13 total)

IDNameProductFamilySeverity
156163Debian DLA-2843-1 : linux - LTS security updateNessusDebian Local Security Checks
high
155326Photon OS 4.0: Linux PHSA-2021-4.0-0126NessusPhotonOS Local Security Checks
high
154146Oracle Linux 8 : Unbreakable Enterprise kernel (ELSA-2021-9486)NessusOracle Linux Local Security Checks
high
154145Oracle Linux 8 : Unbreakable Enterprise kernel-container (ELSA-2021-9487)NessusOracle Linux Local Security Checks
high
153860Amazon Linux AMI : kernel (ALAS-2021-1539)NessusAmazon Linux Local Security Checks
high
153668Debian DSA-4978-1 : linux - security updateNessusDebian Local Security Checks
high
141488Fedora 33 : kernel (2020-ce117eff51)NessusFedora Local Security Checks
high
141480Photon OS 1.0: Linux PHSA-2020-1.0-0333NessusPhotonOS Local Security Checks
high
141475Photon OS 2.0: Linux PHSA-2020-2.0-0290NessusPhotonOS Local Security Checks
high
141451Ubuntu 18.04 LTS / 20.04 LTS : Linux kernel vulnerabilities (USN-4576-1)NessusUbuntu Local Security Checks
high
141449Ubuntu 18.04 LTS : Linux kernel vulnerabilities (USN-4577-1)NessusUbuntu Local Security Checks
high
141448Ubuntu 16.04 LTS / 18.04 LTS : Linux kernel vulnerabilities (USN-4578-1)NessusUbuntu Local Security Checks
high
141447Ubuntu 16.04 LTS : Linux kernel vulnerabilities (USN-4579-1)NessusUbuntu Local Security Checks
high