CVE-2020-11565
An issue was discovered in the Linux kernel through 5.6.2. mpol_parse_str in mm/mempolicy.c has a stack-based out-of-bounds write because an empty nodelist is mishandled during mount option parsing,
02 Description
An issue was discovered in the Linux kernel through 5.6.2. mpol_parse_str in mm/mempolicy.c has a stack-based out-of-bounds write because an empty nodelist is mishandled during mount option parsing,
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
- 0.51% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 43.7% of scored records. A rank, not a probability.
- NVD base score
- 6.0 (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:N/I:H/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- Moderate. 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
- 2020-04-06 00:08Z6 YR AGO
- Last updated
- 2024-08-04 11:35Z2 YR AGO
- Reserved
- 2020-04-06
- Assigning CNA
- mitre
- 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
- 5.1
- Document digest
- 8c2e10c528984779026abec088fd395dc98e4ca6dfd7dd7318f840196d274e3c
05 Affected products
06 References
- github.comhttps://github.com/torvalds/linux/commit/aa9f7d5172fac9bf1f09e678c35e287a40a7b7dd
- git.kernel.orghttps://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=aa9f7d5172fac9bf1f09e678c35e287a40a7b7dd
- www.debian.orgDSA-4667https://www.debian.org/security/2020/dsa-4667
- usn.ubuntu.comUSN-4364-1https://usn.ubuntu.com/4364-1/
- usn.ubuntu.comUSN-4367-1https://usn.ubuntu.com/4367-1/
- usn.ubuntu.comUSN-4368-1https://usn.ubuntu.com/4368-1/
- usn.ubuntu.comUSN-4363-1https://usn.ubuntu.com/4363-1/
- usn.ubuntu.comUSN-4369-1https://usn.ubuntu.com/4369-1/
- lists.debian.org[debian-lts-announce] 20200609 [SECURITY] [DLA 2241-1] linux security updatehttps://lists.debian.org/debian-lts-announce/2020/06/msg00011.html
- lists.debian.org[debian-lts-announce] 20200610 [SECURITY] [DLA 2242-1] linux-4.9 security updatehttps://lists.debian.org/debian-lts-announce/2020/06/msg00012.html
- lists.debian.org[debian-lts-announce] 20200610 [SECURITY] [DLA 2241-2] linux security updatehttps://lists.debian.org/debian-lts-announce/2020/06/msg00013.html
- www.debian.orgDSA-4698https://www.debian.org/security/2020/dsa-4698
07 Fixed in
AlmaLinux 8
- kernel-tools-libs-devel Fixed in 4.18.0-240.el8
Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
CloudLinux 8
- kernel-tools-libs-devel Fixed in 4.18.0-240.el8
Derived from AlmaLinux 8. Partial coverage: only packages taken from AlmaLinux 8 are listed.
Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
Debian 12
- linux Fixed in 5.5.17-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- linux Fixed in 5.5.17-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- linux Fixed in 5.5.17-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 16.04 LTS
- linux Fixed in 4.4.0-179.209
- linux-aws Fixed in 4.4.0-1107.118
- linux-aws-hwe Fixed in 4.15.0-1067.71~16.04.1
- linux-azure Fixed in 4.15.0-1083.93~16.04.1
- linux-gcp Fixed in 4.15.0-1071.81~16.04.1
- linux-hwe Fixed in 4.15.0-101.102~16.04.1
- linux-hwe-edge No fix yet
- linux-kvm Fixed in 4.4.0-1071.78
- linux-oracle Fixed in 4.15.0-1039.43~16.04.1
- linux-raspi2 Fixed in 4.4.0-1133.142
- linux-snapdragon Fixed in 4.4.0-1137.145
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 4.15.0-101.102
- linux-aws Fixed in 4.15.0-1067.71
- linux-aws-5.0 No fix yet
- linux-aws-5.3 Fixed in 5.3.0-1019.21~18.04.1
- linux-azure No fix yet
- linux-azure-4.15 Fixed in 4.15.0-1083.93
- linux-azure-5.3 Fixed in 5.3.0-1022.23~18.04.1
- linux-azure-edge No fix yet
- linux-gcp No fix yet
- linux-gcp-5.3 Fixed in 5.3.0-1020.22~18.04.1
- linux-gcp-edge No fix yet
- linux-gke-4.15 Fixed in 4.15.0-1059.62
- linux-gke-5.0 Fixed in 5.0.0-1037.38
- linux-gke-5.3 Fixed in 5.3.0-1020.22~18.04.1
- linux-hwe Fixed in 5.3.0-53.47~18.04.1
- linux-hwe-edge No fix yet
- linux-kvm Fixed in 4.15.0-1060.61
- linux-oem Fixed in 4.15.0-1081.91
- linux-oem-osp1 Fixed in 5.0.0-1052.57
- linux-oracle Fixed in 4.15.0-1039.43
- linux-oracle-5.0 No fix yet
- linux-oracle-5.3 Fixed in 5.3.0-1018.20~18.04.1
- linux-raspi2 Fixed in 4.15.0-1062.66
- linux-raspi2-5.3 Fixed in 5.3.0-1026.28~18.04.1
- linux-snapdragon Fixed in 4.15.0-1079.86
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 5.4.0-31.35
- linux-aws Fixed in 5.4.0-1011.11
- linux-azure Fixed in 5.4.0-1012.12
- linux-azure-fde No fix yet
- linux-gcp Fixed in 5.4.0-1011.11
- linux-gke No fix yet
- linux-kvm Fixed in 5.4.0-1011.11
- linux-oem-5.6 Fixed in 5.6.0-1008.8
- linux-oracle Fixed in 5.4.0-1011.11
- linux-raspi Fixed in 5.4.0-1011.11
- linux-raspi2 No fix yet
- linux-riscv Fixed in 5.4.0-26.30
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 No fix yet
- linux-aws Fixed in 4.4.0-1067.71Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-azure Fixed in 4.15.0-1083.93~14.04.1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-lts-xenial Fixed in 4.4.0-179.209~14.04.1Available 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 4.4.0-1034.39Available 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 4.15.0-2018.18Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-azure-fips Fixed in 4.15.0-2006.7Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-fips Fixed in 4.15.0-1029.34Available 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-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.