CVE-2018-21008
Published: 4 September 2019
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.
From the Ubuntu Security Team
It was discovered that the RSI 91x Wi-Fi driver in the Linux kernel did not did not handle detach operations correctly, leading to a use-after-free vulnerability. A physically proximate attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
linux Launchpad, Ubuntu, Debian |
bionic |
Released
(4.15.0-66.75)
|
| disco |
Not vulnerable
(4.18.0-10.11)
|
|
| eoan |
Not vulnerable
(5.0.0-13.14)
|
|
| focal |
Not vulnerable
(5.4.0-9.12)
|
|
| trusty |
Ignored
(was needed ESM criteria)
|
|
| upstream |
Released
(4.18~rc1)
|
|
| xenial |
Released
(4.4.0-166.195)
|
|
|
Patches: Introduced by dad0d04fa7ba41ce603a01e8e64967650303e9a2 |
||
|
linux-aws Launchpad, Ubuntu, Debian |
bionic |
Released
(4.15.0-1052.54)
|
| disco |
Not vulnerable
(4.18.0-1002.3)
|
|
| eoan |
Not vulnerable
(5.0.0-1004.4)
|
|
| focal |
Not vulnerable
(5.4.0-1005.5)
|
|
| trusty |
Released
(4.4.0-1056.60)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only) |
|
| upstream |
Released
(4.18~rc1)
|
|
| xenial |
Released
(4.4.0-1096.107)
|
|
|
linux-aws-5.0 Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(5.0.0-1021.24~18.04.1)
|
| disco |
Does not exist
|
|
| eoan |
Does not exist
|
|
| focal |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(4.18~rc1)
|
|
| xenial |
Does not exist
|
|
|
linux-azure-5.3 Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(5.3.0-1007.8~18.04.1)
|
| disco |
Does not exist
|
|
| eoan |
Does not exist
|
|
| focal |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(4.18~rc1)
|
|
| xenial |
Does not exist
|
|
|
linux-gke-5.3 Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(5.3.0-1011.12~18.04.1)
|
| eoan |
Does not exist
|
|
| focal |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(4.18~rc1)
|
|
| xenial |
Does not exist
|
|
|
linux-oem-5.6 Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| eoan |
Does not exist
|
|
| focal |
Not vulnerable
(5.4.0-1002.4)
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(4.18~rc1)
|
|
| xenial |
Does not exist
|
|
|
linux-aws-hwe Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| disco |
Does not exist
|
|
| eoan |
Does not exist
|
|
| focal |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(4.18~rc1)
|
|
| xenial |
Released
(4.15.0-1052.54~16.04.1)
|
|
|
linux-azure Launchpad, Ubuntu, Debian |
bionic |
Released
(4.18.0-1011.11~18.04.1)
|
| disco |
Not vulnerable
(4.18.0-1003.3)
|
|
| eoan |
Not vulnerable
(5.0.0-1004.4)
|
|
| focal |
Not vulnerable
(5.4.0-1006.6)
|
|
| trusty |
Released
(4.15.0-1061.66~14.04.1)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only) |
|
| upstream |
Released
(4.18~rc1)
|
|
| xenial |
Released
(4.15.0-1061.66)
|
|
|
linux-azure-edge Launchpad, Ubuntu, Debian |
bionic |
Released
(4.18.0-1011.11~18.04.1)
|
| disco |
Does not exist
|
|
| eoan |
Does not exist
|
|
| focal |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(4.18~rc1)
|
|
| xenial |
Released
(4.15.0-1061.66)
|
|
|
linux-gcp Launchpad, Ubuntu, Debian |
bionic |
Released
(5.0.0-1020.20~18.04.1)
|
| disco |
Not vulnerable
(4.18.0-1002.3)
|
|
| eoan |
Not vulnerable
(5.0.0-1004.4)
|
|
| focal |
Not vulnerable
(5.4.0-1005.5)
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(4.18~rc1)
|
|
| xenial |
Released
(4.15.0-1047.50)
|
|
|
linux-gcp-5.3 Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(5.3.0-1008.9~18.04.1)
|
| disco |
Does not exist
|
|
| eoan |
Does not exist
|
|
| focal |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(4.18~rc1)
|
|
| xenial |
Does not exist
|
|
|
linux-gcp-edge Launchpad, Ubuntu, Debian |
bionic |
Released
(5.0.0-1020.20~18.04.1)
|
| disco |
Does not exist
|
|
| eoan |
Does not exist
|
|
| focal |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(4.18~rc1)
|
|
| xenial |
Does not exist
|
|
|
linux-gke-4.15 Launchpad, Ubuntu, Debian |
bionic |
Released
(4.15.0-1046.49)
|
| disco |
Does not exist
|
|
| eoan |
Does not exist
|
|
| focal |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(4.18~rc1)
|
|
| xenial |
Does not exist
|
|
|
linux-gke-5.0 Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(5.0.0-1011.11~18.04.1)
|
| disco |
Does not exist
|
|
| eoan |
Does not exist
|
|
| focal |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(4.18~rc1)
|
|
| xenial |
Does not exist
|
|
|
linux-hwe Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(4.18.0-13.14~18.04.1)
|
| disco |
Does not exist
|
|
| eoan |
Does not exist
|
|
| focal |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(4.18~rc1)
|
|
| xenial |
Released
(4.15.0-66.75~16.04.1)
|
|
|
linux-hwe-edge Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(5.0.0-15.16~18.04.1)
|
| disco |
Does not exist
|
|
| eoan |
Does not exist
|
|
| focal |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(4.18~rc1)
|
|
| xenial |
Released
(4.15.0-66.75~16.04.1)
|
|
|
linux-kvm Launchpad, Ubuntu, Debian |
bionic |
Released
(4.15.0-1048.48)
|
| disco |
Not vulnerable
(4.18.0-1003.3)
|
|
| eoan |
Not vulnerable
(5.0.0-1004.4)
|
|
| focal |
Not vulnerable
(5.4.0-1004.4)
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(4.18~rc1)
|
|
| xenial |
Released
(4.4.0-1060.67)
|
|
|
linux-lts-trusty Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| disco |
Does not exist
|
|
| eoan |
Does not exist
|
|
| focal |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(4.18~rc1)
|
|
| xenial |
Does not exist
|
|
|
linux-lts-xenial Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| disco |
Does not exist
|
|
| eoan |
Does not exist
|
|
| focal |
Does not exist
|
|
| trusty |
Released
(4.4.0-166.195~14.04.1)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only) |
|
| upstream |
Released
(4.18~rc1)
|
|
| xenial |
Does not exist
|
|
|
linux-oem Launchpad, Ubuntu, Debian |
bionic |
Released
(4.15.0-1059.68)
|
| disco |
Ignored
(end of life)
|
|
| eoan |
Released
(4.15.0-1059.68)
|
|
| focal |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(4.18~rc1)
|
|
| xenial |
Ignored
(end of standard support, was needs-triage)
|
|
|
linux-oem-osp1 Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(5.0.0-1010.11)
|
| disco |
Not vulnerable
(5.0.0-1010.11)
|
|
| eoan |
Not vulnerable
(5.0.0-1010.11)
|
|
| focal |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(4.18~rc1)
|
|
| xenial |
Does not exist
|
|
|
linux-oracle Launchpad, Ubuntu, Debian |
bionic |
Released
(4.15.0-1027.30)
|
| disco |
Released
(5.0.0-1004.8)
|
|
| eoan |
Not vulnerable
(5.3.0-1002.2)
|
|
| focal |
Not vulnerable
(5.4.0-1005.5)
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(4.18~rc1)
|
|
| xenial |
Released
(4.15.0-1027.30~16.04.1)
|
|
|
linux-oracle-5.0 Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(5.0.0-1007.12~18.04.1)
|
| disco |
Does not exist
|
|
| eoan |
Does not exist
|
|
| focal |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(4.18~rc1)
|
|
| xenial |
Does not exist
|
|
|
linux-oracle-5.3 Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(5.3.0-1011.12~18.04.1)
|
| eoan |
Does not exist
|
|
| focal |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(4.18~rc1)
|
|
| xenial |
Does not exist
|
|
|
linux-raspi2 Launchpad, Ubuntu, Debian |
bionic |
Released
(4.15.0-1049.53)
|
| disco |
Not vulnerable
(4.18.0-1005.7)
|
|
| eoan |
Not vulnerable
(5.0.0-1006.6)
|
|
| focal |
Not vulnerable
(5.4.0-1004.4)
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(4.18~rc1)
|
|
| xenial |
Released
(4.4.0-1124.133)
|
|
|
linux-raspi2-5.3 Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(5.3.0-1017.19~18.04.1)
|
| eoan |
Does not exist
|
|
| focal |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(4.18~rc1)
|
|
| xenial |
Does not exist
|
|
|
linux-snapdragon Launchpad, Ubuntu, Debian |
bionic |
Released
(4.15.0-1066.73)
|
| disco |
Not vulnerable
(5.0.0-1010.10)
|
|
| eoan |
Does not exist
|
|
| focal |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(4.18~rc1)
|
|
| xenial |
Released
(4.4.0-1128.136)
|
|
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 5.5 |
| Attack vector | Local |
| Attack complexity | Low |
| Privileges required | Low |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity impact | None |
| Availability impact | High |
| Vector | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-21008
- https://git.kernel.org/linus/abd39c6ded9db53aa44c2540092bdd5fb6590fa8
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.16.7
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=abd39c6ded9db53aa44c2540092bdd5fb6590fa8
- https://ubuntu.com/security/notices/USN-4162-1
- https://ubuntu.com/security/notices/USN-4163-1
- https://ubuntu.com/security/notices/USN-4162-2
- https://ubuntu.com/security/notices/USN-4163-2
- NVD
- Launchpad
- Debian