CVE-2020-16119
DCCP CCID structure use-after-free
02 Description
DCCP CCID structure use-after-free
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 0.42% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 36.6% of scored records. A rank, not a probability.
- NVD base score
- 7.8 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- Important. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2021-01-14 01:10Z5 YR AGO
- Last updated
- 2024-09-16 18:19Z2 YR AGO
- Reserved
- 2020-07-29
- Assigning CNA
- canonical
- Record state
- PUBLISHED
- Severity
- Medium (CVSS 6.3)
- CNA CVSS vector
- CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H
- Weaknesses
- CWE-416Use After FreeVariant
- Data version
- 5.1
- Document digest
- edf399b5be9c115e1b293b44701193c59f74c8036f389b02da304b89f742b4da
05 Affected products
06 References
- launchpad.nethttps://launchpad.net/bugs/1883840
- ubuntu.comhttps://ubuntu.com/USN-4576-1
- ubuntu.comhttps://ubuntu.com/USN-4577-1
- ubuntu.comhttps://ubuntu.com/USN-4578-1
- ubuntu.comhttps://ubuntu.com/USN-4579-1
- ubuntu.comhttps://ubuntu.com/USN-4580-1
- lore.kernel.orghttps://lore.kernel.org/netdev/20201013171849.236025-1-kleber.souza%40canonical.com/T/
- git.launchpad.nethttps://git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux/+git/focal/commit/?id=01872cb896c76cedeabe93a08456976ab55ad695
- security.netapp.comhttps://security.netapp.com/advisory/ntap-20210304-0006/
- www.debian.orgDSA-4978https://www.debian.org/security/2021/dsa-4978
- lists.debian.org[debian-lts-announce] 20211015 [SECURITY] [DLA 2785-1] linux-4.19 security updatehttps://lists.debian.org/debian-lts-announce/2021/10/msg00010.html
- lists.debian.org[debian-lts-announce] 20211216 [SECURITY] [DLA 2843-1] linux security updatehttps://lists.debian.org/debian-lts-announce/2021/12/msg00012.html
07 Fixed in
Arch Linux
- linux Fixed in 5.10.2.arch1-1
- linux-hardened Fixed in 5.9.9.a-1
- linux-lts Fixed in 5.4.93-2
- linux-zen Fixed in 5.10.2.zen1-1
Source: Arch Linux Security Tracker, the Arch Linux security team. Reformatted by exploit.cc.
Debian 12
- linux Fixed in 5.14.6-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- linux Fixed in 5.14.6-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- linux Fixed in 5.14.6-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 16.04 LTS
- linux Fixed in 4.4.0-193.224
- linux-aws Fixed in 4.4.0-1117.131
- linux-aws-hwe Fixed in 4.15.0-1085.90~16.04.1
- linux-azure Fixed in 4.15.0-1098.109~16.04.1
- linux-gcp Fixed in 4.15.0-1086.98~16.04.1
- linux-hwe Fixed in 4.15.0-120.122~16.04.1
- linux-hwe-edge No fix yet
- linux-kvm Fixed in 4.4.0-1082.91
- linux-oracle Fixed in 4.15.0-1056.61~16.04.1
- linux-raspi2 Fixed in 4.4.0-1141.151
- linux-snapdragon Fixed in 4.4.0-1145.155
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 18.04 LTS
- linux Fixed in 4.15.0-121.123
- linux-aws Fixed in 4.15.0-1086.91
- linux-aws-5.0 No fix yet
- linux-aws-5.3 No fix yet
- linux-aws-5.4 Fixed in 5.4.0-1028.29~18.04.1
- linux-azure No fix yet
- linux-azure-4.15 Fixed in 4.15.0-1099.110
- linux-azure-5.3 No fix yet
- linux-azure-5.4 Fixed in 5.4.0-1031.32~18.04.1
- linux-azure-edge No fix yet
- linux-gcp No fix yet
- linux-gcp-4.15 Fixed in 4.15.0-1086.98
- linux-gcp-5.3 No fix yet
- linux-gcp-5.4 Fixed in 5.4.0-1028.29~18.04.1
- linux-gcp-edge No fix yet
- linux-gke-4.15 Fixed in 4.15.0-1072.76
- linux-gke-5.0 Fixed in 5.0.0-1049.50
- linux-gke-5.3 Fixed in 5.3.0-1038.40
- linux-hwe Fixed in 5.3.0-68.63
- linux-hwe-5.4 Fixed in 5.4.0-51.56~18.04.1
- linux-hwe-edge No fix yet
- linux-kvm Fixed in 4.15.0-1077.79
- linux-oem Fixed in 4.15.0-1099.109
- linux-oracle Fixed in 4.15.0-1057.62
- linux-oracle-5.0 No fix yet
- linux-oracle-5.3 No fix yet
- linux-oracle-5.4 Fixed in 5.4.0-1028.29~18.04.1
- linux-raspi-5.4 Fixed in 5.4.0-1021.24~18.04.1
- linux-raspi2 Fixed in 4.15.0-1073.78
- linux-raspi2-5.3 Fixed in 5.3.0-1035.37
- linux-snapdragon Fixed in 4.15.0-1089.98
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 20.04 LTS
- linux Fixed in 5.4.0-51.56
- linux-aws Fixed in 5.4.0-1028.29
- linux-azure Fixed in 5.4.0-1031.32
- linux-azure-fde No fix yet
- linux-gcp Fixed in 5.4.0-1028.29
- linux-gke No fix yet
- linux-gkeop No fix yet
- linux-gkeop-5.15 No fix yet
- linux-kvm Fixed in 5.4.0-1026.27
- linux-oem-5.6 Fixed in 5.6.0-1031.32
- linux-oracle Fixed in 5.4.0-1028.29
- linux-raspi Fixed in 5.4.0-1021.24
- linux-raspi2 No fix yet
- linux-riscv Fixed in 5.4.0-36.41
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 22.04 LTS
- linux-intel-iot-realtime No fix yet
- linux-realtime No fix yet
- linux-riscv No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 24.04 LTS
- linux-raspi-realtime No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 14.04 LTS
- linux-aws Fixed in 4.4.0-1081.85Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-azure Fixed in 4.15.0-1098.109~14.04.1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-lts-xenial Fixed in 4.4.0-193.224~14.04.1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro FIPS-updates 16.04 LTS
- linux-fips Fixed in 4.4.0-1048.53Available with Ubuntu Pro: https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro FIPS-updates 18.04 LTS
- linux-aws-fips Fixed in 4.15.0-2030.31Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-azure-fips Fixed in 4.15.0-2012.14Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-fips Fixed in 4.15.0-1044.50Available with Ubuntu Pro: https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro FIPS-updates 20.04 LTS
- linux-aws-fips Fixed in 5.4.0-1069.73+fips2Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-azure-fips Fixed in 5.4.0-1073.76+fips1Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-gcp-fips Fixed in 5.4.0-1067.71~20.04.1Available with Ubuntu Pro: https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro FIPS 16.04 LTS
- linux-fips No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro FIPS 18.04 LTS
- linux-aws-fips No fix yet
- linux-azure-fips No fix yet
- linux-fips No fix yet
- linux-gcp-fips No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro FIPS 20.04 LTS
- linux-aws-fips No fix yet
- linux-azure-fips No fix yet
- linux-gcp-fips No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.