CVE-2021-27364
Vulnerability Summary
Timeline
Description
An issue was discovered in the Linux kernel through 5.11.3. drivers/scsi/scsi_transport_iscsi.c is adversely affected by the ability of an unprivileged user to craft Netlink messages.
CVSS Metrics
- v3.1•HIGH•Score: 7.1CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
- v2.0•LOW•Score: 3.6AV:L/AC:L/Au:N/C:P/I:N/A:P
EPSS Trends
Current EPSS score: 0.96%• Percentile: 60%
Techniques & Countermeasures
- CWE-125•Out-of-bounds Read
The product reads data past the end, or before the beginning, of the intended buffer.
Affected Systems
- canonical•ubuntu_linux
14.04 | 16.04 | 18.04 | 20.04
- debian•linux
< 5.10.24-1 | < 5.10.24-1 | < 5.10.24-1 | < 5.10.24-1
- ubuntu•linux
< 3.13.0-185.236 | < 4.4.0-206.238 | < 4.15.0-139.143 | < 5.4.0-70.78
- ubuntu•linux-aws
< 4.4.0-1088.92 | < 4.4.0-1124.138 | < 4.15.0-1096.103 | < 5.4.0-1041.43
- ubuntu•linux-aws-5.0
all
- ubuntu•linux-aws-5.3
all
- ubuntu•linux-aws-5.4
< 5.4.0-1041.43~18.04.1
- ubuntu•linux-aws-fips
< 4.15.0-2039.41 | all | < 5.4.0-1069.73+fips2
- ubuntu•linux-aws-hwe
< 4.15.0-1096.103~16.04.1
- ubuntu•linux-azure
< 4.15.0-1110.122~14.04.1 | < 4.15.0-1110.122~16.04.1 | all | < 5.4.0-1043.45
- ubuntu•linux-azure-4.15
< 4.15.0-1110.122
- ubuntu•linux-azure-5.3
all
- ubuntu•linux-azure-5.4
< 5.4.0-1043.45~18.04.1
- ubuntu•linux-azure-edge
all
- ubuntu•linux-azure-fde-5.15
< 5.15.0-1114.123~20.04.1
- ubuntu•linux-azure-fips
< 4.15.0-2022.25 | all | < 5.4.0-1073.76+fips1
- ubuntu•linux-bluefield
all
- ubuntu•linux-dell300x
< 4.15.0-1015.19
- ubuntu•linux-fips
< 4.4.0-1058.64 | all | < 4.15.0-1055.63
- ubuntu•linux-gcp
< 4.15.0-1095.108~16.04.1 | all | < 5.4.0-1040.43
- ubuntu•linux-gcp-4.15
< 4.15.0-1095.108
- ubuntu•linux-gcp-5.3
all
- ubuntu•linux-gcp-5.4
< 5.4.0-1040.43~18.04.1
- ubuntu•linux-gcp-edge
all
- ubuntu•linux-gcp-fips
all | < 5.4.0-1067.71~20.04.1
- ubuntu•linux-gke
< 5.4.0-1039.41
- ubuntu•linux-gke-4.15
all
- ubuntu•linux-gke-5.3
< 5.3.0-1041.44
- ubuntu•linux-gke-5.4
< 5.4.0-1039.41~18.04.1
- ubuntu•linux-gkeop
< 5.4.0-1012.13
- ubuntu•linux-gkeop-5.4
< 5.4.0-1012.13~18.04.1
- ubuntu•linux-hwe
< 4.15.0-139.143~16.04.1 | < 5.3.0-72.68
- ubuntu•linux-hwe-5.4
< 5.4.0-70.78~18.04.1
- ubuntu•linux-hwe-5.8
< 5.8.0-48.54~20.04.1
- ubuntu•linux-hwe-edge
all | all
- ubuntu•linux-intel-iot-realtime
all
- ubuntu•linux-kvm
< 4.4.0-1090.99 | < 4.15.0-1087.89 | < 5.4.0-1036.37
- ubuntu•linux-lts-xenial
< 4.4.0-206.238~14.04.1
- ubuntu•linux-oem
all
- ubuntu•linux-oem-5.10
< 5.10.0-1019.20
- ubuntu•linux-oem-5.6
< 5.6.0-1052.56
- ubuntu•linux-oracle
< 4.15.0-1067.75~16.04.1 | < 4.15.0-1067.75 | < 5.4.0-1041.44
- ubuntu•linux-oracle-5.0
all
- ubuntu•linux-oracle-5.3
all
- ubuntu•linux-oracle-5.4
< 5.4.0-1041.44~18.04.1
- ubuntu•linux-raspi
< 5.4.0-1032.35
- ubuntu•linux-raspi-5.4
< 5.4.0-1032.35~18.04.1
- ubuntu•linux-raspi-realtime
all
- ubuntu•linux-raspi2
< 4.4.0-1148.158 | < 4.15.0-1081.86 | all
- ubuntu•linux-raspi2-5.3
< 5.3.0-1038.40
Showing first 50 affected entries in server-rendered view.
References (18)
- https://lists.debian.org/debian-lts-announce/2021/03/msg00010.html
- https://lists.debian.org/debian-lts-announce/2021/03/msg00035.html
- https://www.oracle.com/security-alerts/cpuoct2021.html
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=688e8128b7a92df982709a4137ea4588d16f24aa
- https://www.openwall.com/lists/oss-security/2021/03/06/1
- https://bugzilla.suse.com/show_bug.cgi?id=1182717
- https://blog.grimm-co.com/2021/03/new-old-bugs-in-linux-kernel.html
- http://packetstormsecurity.com/files/162117/Kernel-Live-Patch-Security-Notice-LSN-0075-1.html
- https://security.netapp.com/advisory/ntap-20210409-0001/
- https://ubuntu.com/security/CVE-2021-27364
- https://git.kernel.org/linus/688e8128b7a92df982709a4137ea4588d16f24aa
- https://github.com/grimm-co/NotQuite0DayFriday/tree/trunk/2021.03.12-linux-iscsi
- https://ubuntu.com/security/notices/USN-4883-1
- https://ubuntu.com/security/notices/USN-4887-1
- https://ubuntu.com/security/notices/USN-4889-1
- https://ubuntu.com/security/notices/USN-4901-1
- https://www.cve.org/CVERecord?id=CVE-2021-27364
- https://security-tracker.debian.org/tracker/CVE-2021-27364