CVE-2020-14390
A flaw was found in the Linux kernel in versions before 5.9-rc6. When changing screen size, an out-of-bounds memory write can occur leading to memory corruption or a denial of service. Due to the
02 Description
A flaw was found in the Linux kernel in versions before 5.9-rc6. When changing screen size, an out-of-bounds memory write can occur leading to memory corruption or a denial of service. Due to the
03 Exploitation and scoring
- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
- Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
- EPSS probability
- 0.35% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 28.5% of scored records. A rank, not a probability.
- NVD base score
- 5.6 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-10-08.
- Red Hat severity
- Low. 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
- 2020-09-18 17:42Z6 YR AGO
- Last updated
- 2026-10-08 21:03Z21 DAYS AGO
- Reserved
- 2020-06-17
- Assigning CNA
- redhat
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- CWE-787Out-of-bounds WriteBase
- Data version
- 5.2
- Document digest
- fed1a39c6f43770413618e148efbb817663457386ff4282733b48ac2cc9407d5
05 Affected products
06 References
- bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=1876788
- lists.opensuse.orgopenSUSE-SU-2020:1586http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00001.html
- lists.opensuse.orgopenSUSE-SU-2020:1655http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00021.html
- lists.debian.org[debian-lts-announce] 20201030 [SECURITY] [DLA 2420-1] linux security updatehttps://lists.debian.org/debian-lts-announce/2020/10/msg00032.html
- lists.debian.org[debian-lts-announce] 20201031 [SECURITY] [DLA 2420-2] linux regression updatehttps://lists.debian.org/debian-lts-announce/2020/10/msg00034.html
07 Fixed in
Debian 12
- linux Fixed in 5.8.10-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- linux Fixed in 5.8.10-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- linux Fixed in 5.8.10-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 16.04 LTS
- linux Fixed in 4.4.0-197.229
- linux-aws Fixed in 4.4.0-1118.132
- linux-aws-hwe Fixed in 4.15.0-1088.93~16.04.1
- linux-azure Fixed in 4.15.0-1100.111~16.04.1
- linux-gcp Fixed in 4.15.0-1088.101~16.04.1
- linux-hwe Fixed in 4.15.0-126.129~16.04.1
- linux-hwe-edge No fix yet
- linux-kvm Fixed in 4.4.0-1084.93
- linux-oracle Fixed in 4.15.0-1059.65~16.04.1
- linux-raspi2 Fixed in 4.4.0-1142.152
- linux-snapdragon Fixed in 4.4.0-1146.156
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 4.15.0-126.129
- linux-aws Fixed in 4.15.0-1088.93
- linux-aws-5.0 No fix yet
- linux-aws-5.3 No fix yet
- linux-aws-5.4 Fixed in 5.4.0-1030.31~18.04.1
- linux-azure No fix yet
- linux-azure-4.15 Fixed in 4.15.0-1100.111
- linux-azure-5.3 No fix yet
- linux-azure-5.4 Fixed in 5.4.0-1032.33~18.04.1
- linux-azure-edge No fix yet
- linux-dell300x Fixed in 4.15.0-1007.11
- linux-gcp No fix yet
- linux-gcp-4.15 Fixed in 4.15.0-1088.101
- linux-gcp-5.3 No fix yet
- linux-gcp-5.4 Fixed in 5.4.0-1030.32~18.04.1
- linux-gcp-edge No fix yet
- linux-gke-4.15 Fixed in 4.15.0-1074.79
- linux-gke-5.4 Fixed in 5.4.0-1030.32~18.04.1
- linux-gkeop-5.4 Fixed in 5.4.0-1005.6
- linux-hwe No fix yet
- linux-hwe-5.4 Fixed in 5.4.0-56.62~18.04.1
- linux-hwe-edge No fix yet
- linux-kvm Fixed in 4.15.0-1079.81
- linux-oem Fixed in 4.15.0-1103.114
- linux-oracle Fixed in 4.15.0-1059.65
- linux-oracle-5.0 No fix yet
- linux-oracle-5.3 No fix yet
- linux-oracle-5.4 Fixed in 5.4.0-1030.32~18.04.1
- linux-raspi-5.4 Fixed in 5.4.0-1023.26~18.04.1
- linux-raspi2 Fixed in 4.15.0-1074.79
- linux-snapdragon Fixed in 4.15.0-1091.100
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 5.4.0-56.62
- linux-aws Fixed in 5.4.0-1030.31
- linux-azure Fixed in 5.4.0-1032.33
- linux-gcp Fixed in 5.4.0-1030.32
- linux-kvm Fixed in 5.4.0-1028.29
- linux-oem-5.6 Fixed in 5.6.0-1053.57
- linux-oracle Fixed in 5.4.0-1030.32
- linux-raspi Fixed in 5.4.0-1023.26
- linux-raspi2 No fix yet
- linux-riscv Fixed in 5.4.0-37.42
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
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 No fix yet
- linux-aws Fixed in 4.4.0-1082.86Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-azure Fixed in 4.15.0-1100.111~14.04.1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-lts-xenial Fixed in 4.4.0-197.229~14.04.1Available 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 20.04 LTS
- linux-azure-fde-5.15 Fixed in 5.15.0-1114.123~20.04.1Available 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 4.4.0-1051.57Available 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 4.15.0-2031.32Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-azure-fips Fixed in 4.15.0-2013.15Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-fips Fixed in 4.15.0-1046.53Available 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 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.