Vulnerability Details : 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.
Vulnerability category: Memory Corruption
Products affected by CVE-2020-16119
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-16119
0.05%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 13 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-16119
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.6
|
MEDIUM | AV:L/AC:L/Au:N/C:P/I:P/A:P |
3.9
|
6.4
|
NIST | |
|
7.8
|
HIGH | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
1.8
|
5.9
|
NIST | |
|
6.3
|
MEDIUM | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H |
1.0
|
5.2
|
Canonical Ltd. |
CWE ids for CVE-2020-16119
-
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.Assigned by:
- nvd@nist.gov (Primary)
- security@ubuntu.com (Secondary)
References for CVE-2020-16119
-
https://ubuntu.com/USN-4578-1
USN-4578-1: Linux kernel vulnerabilities | Ubuntu security notices | UbuntuThird Party Advisory
-
https://ubuntu.com/USN-4576-1
USN-4576-1: Linux kernel vulnerabilities | Ubuntu security notices | UbuntuThird Party Advisory
-
https://ubuntu.com/USN-4580-1
USN-4580-1: Linux kernel vulnerability | Ubuntu security notices | UbuntuThird Party Advisory
-
https://lore.kernel.org/netdev/20201013171849.236025-1-kleber.souza@canonical.com/T/
[PATCH 0/2] net: dccp: fix structure use-after-freePatch;Vendor Advisory
-
https://lists.debian.org/debian-lts-announce/2021/12/msg00012.html
[SECURITY] [DLA 2843-1] linux security updateThird Party Advisory
-
https://ubuntu.com/USN-4579-1
USN-4579-1: Linux kernel vulnerabilities | Ubuntu security notices | UbuntuThird Party Advisory
-
https://www.debian.org/security/2021/dsa-4978
Debian -- Security Information -- DSA-4978-1 linuxThird Party Advisory
-
https://security.netapp.com/advisory/ntap-20210304-0006/
CVE-2020-16119 Linux Kernel Vulnerability in NetApp Products | NetApp Product SecurityThird Party Advisory
-
https://git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux/+git/focal/commit/?id=01872cb896c76cedeabe93a08456976ab55ad695
~ubuntu-kernel/ubuntu/+source/linux/+git/focal - [no description]Patch;Third Party Advisory
-
https://ubuntu.com/USN-4577-1
USN-4577-1: Linux kernel vulnerabilities | Ubuntu security notices | UbuntuThird Party Advisory
-
https://lists.debian.org/debian-lts-announce/2021/10/msg00010.html
[SECURITY] [DLA 2785-1] linux-4.19 security updateMailing List;Third Party Advisory
-
https://launchpad.net/bugs/1883840
Bug #1883840 “Double free in DCCP module causing kernel panic” : Bugs : linux package : UbuntuIssue Tracking;Patch;Third Party Advisory
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