Vulnerability Report

CVE-2020-16119

RCE

Title: Linux Kernel DCCP socket use-after-free

RCE

Proof Of Concept

No public PoC currently indexed for CVE-2020-16119.

CWE Category CWE-416
Published Date Jan 14, 2021
Modified Date Nov 21, 2024
Exploit Status Not Found
Score 6.3 CVSS v3.1
Exploit Probability (EPSS)
0.42%

Vulnerability Summary

CVE-2020-16119: 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.

Impacted Vendors

L
linux 1
D
debian 1
U
ubuntu 2
C
canonical 1

Reference Links

https://git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux/+git/focal/commit/?id=01872cb896c76cedeabe93a08456976ab55ad695 https://launchpad.net/bugs/1883840 https://lists.debian.org/debian-lts-announce/2021/10/msg00010.html https://lists.debian.org/debian-lts-announce/2021/12/msg00012.html https://lore.kernel.org/netdev/20201013171849.236025-1-kleber.souza%40canonical.com/T/ https://security.netapp.com/advisory/ntap-20210304-0006/ https://ubuntu.com/USN-4576-1 https://ubuntu.com/USN-4577-1 https://ubuntu.com/USN-4578-1 https://ubuntu.com/USN-4579-1 https://ubuntu.com/USN-4580-1 https://www.debian.org/security/2021/dsa-4978 https://git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux/+git/focal/commit/?id=01872cb896c76cedeabe93a08456976ab55ad695 https://launchpad.net/bugs/1883840 https://lists.debian.org/debian-lts-announce/2021/10/msg00010.html https://lists.debian.org/debian-lts-announce/2021/12/msg00012.html https://lore.kernel.org/netdev/20201013171849.236025-1-kleber.souza%40canonical.com/T/ https://security.netapp.com/advisory/ntap-20210304-0006/ https://ubuntu.com/USN-4576-1 https://ubuntu.com/USN-4577-1 https://ubuntu.com/USN-4578-1 https://ubuntu.com/USN-4579-1 https://ubuntu.com/USN-4580-1 https://www.debian.org/security/2021/dsa-4978
CVSS v3.1
Source Entity [email protected]
Severity MEDIUM
6.3
Attack Vector
LOCAL
Complexity
HIGH
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H
CVSS v3.1
Source Entity [email protected]
Severity HIGH
7.8
Attack Vector
LOCAL
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v2.0
Source Entity [email protected]
Severity MEDIUM
4.6
Access Vector
N/A
Authentication
N/A
RAW VECTOR AV:L/AC:L/Au:N/C:P/I:P/A:P

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2020-16119 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

MODIFIED

Vulnerability data or affected products updated.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector LOCAL
Complexity HIGH
Privileges N/A
Interaction NONE
CVSS Vector String CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H

Affected Stack

No specific products linked.