CVE-2018-21008
An issue was discovered in the Linux kernel before 4.16.7. A use-after-free can be caused by the function rsi_mac80211_detach in the file drivers/net/wireless/rsi/rsi_91x_mac80211.c.
02 Description
An issue was discovered in the Linux kernel before 4.16.7. A use-after-free can be caused by the function rsi_mac80211_detach in the file drivers/net/wireless/rsi/rsi_91x_mac80211.c.
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
- 0.58% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 47.9% of scored records. A rank, not a probability.
- NVD base score
- 5.5 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/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
- 2019-09-04 20:33Z7 YR AGO
- Last updated
- 2024-08-05 12:19Z2 YR AGO
- Reserved
- 2019-09-04
- Assigning CNA
- mitre
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- CWE-416Use After FreeVariant
- Data version
- 5.1
- Document digest
- 0fb28809bdc280968866fe2cd903d3985a4c6da7971c85e6102417ce8f820a9a
05 Affected products
06 References
- git.kernel.orghttps://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=abd39c6ded9db53aa44c2540092bdd5fb6590fa8
- cdn.kernel.orghttps://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.16.7
- lists.opensuse.orgopenSUSE-SU-2019:2173http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00064.html
- lists.opensuse.orgopenSUSE-SU-2019:2181http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00066.html
- lists.debian.org[debian-lts-announce] 20190925 [SECURITY] [DLA 1930-1] linux security updatehttps://lists.debian.org/debian-lts-announce/2019/09/msg00025.html
- security.netapp.comhttps://security.netapp.com/advisory/ntap-20191004-0001/
- usn.ubuntu.comUSN-4162-1https://usn.ubuntu.com/4162-1/
- usn.ubuntu.comUSN-4163-1https://usn.ubuntu.com/4163-1/
- usn.ubuntu.comUSN-4163-2https://usn.ubuntu.com/4163-2/
- usn.ubuntu.comUSN-4162-2https://usn.ubuntu.com/4162-2/
- packetstormsecurity.comhttp://packetstormsecurity.com/files/154951/Kernel-Live-Patch-Security-Notice-LSN-0058-1.html
- lists.debian.org[debian-lts-announce] 20200302 [SECURITY] [DLA 2114-1] linux-4.9 security updatehttps://lists.debian.org/debian-lts-announce/2020/03/msg00001.html
07 Fixed in
Debian 12
- linux Fixed in 4.18.6-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- linux Fixed in 4.18.6-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- linux Fixed in 4.18.6-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 16.04 LTS
- linux Fixed in 4.4.0-166.195
- linux-aws Fixed in 4.4.0-1096.107
- linux-aws-hwe Fixed in 4.15.0-1052.54~16.04.1
- linux-azure Fixed in 4.15.0-1061.66
- linux-gcp Fixed in 4.15.0-1047.50
- linux-hwe Fixed in 4.15.0-66.75~16.04.1
- linux-kvm Fixed in 4.4.0-1060.67
- linux-oracle Fixed in 4.15.0-1027.30~16.04.1
- linux-raspi2 Fixed in 4.4.0-1124.133
- linux-snapdragon Fixed in 4.4.0-1128.136
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 4.15.0-66.75
- linux-aws Fixed in 4.15.0-1052.54
- linux-azure Fixed in 4.18.0-1011.11~18.04.1
- linux-gcp Fixed in 5.0.0-1020.20~18.04.1
- linux-gke-4.15 Fixed in 4.15.0-1046.49
- linux-kvm Fixed in 4.15.0-1048.48
- linux-oem Fixed in 4.15.0-1059.68
- linux-oracle Fixed in 4.15.0-1027.30
- linux-raspi2 Fixed in 4.15.0-1049.53
- linux-snapdragon Fixed in 4.15.0-1066.73
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 20.04 LTS
- linux-azure-fde No fix yet
- linux-gke 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 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 4.4.0-1056.60Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-azure Fixed in 4.15.0-1061.66~14.04.1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-lts-xenial Fixed in 4.4.0-166.195~14.04.1Available 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 4.4.0-1023.28Available 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
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.