CVE-2021-3600
Vulnerability Summary
Timeline
Description
It was discovered that the eBPF implementation in the Linux kernel did not properly track bounds information for 32 bit registers when performing div and mod operations. A local attacker could use this to possibly execute arbitrary code.
CVSS Metrics
- v3.1•HIGH•Score: 7.8CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
- v3.1•HIGH•Score: 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS Trends
Current EPSS score: 0.28%• Percentile: 21%
Techniques & Countermeasures
- CWE-125•Out-of-bounds Read
The product reads data past the end, or before the beginning, of the intended buffer.
- CWE-787•Out-of-bounds Write
The product writes data past the end, or before the beginning, of the intended buffer.
Affected Systems
- canonical•ubuntu_linux
14.04 | 16.04 | 18.04
- debian•linux
< 5.10.19-1 | < 5.10.19-1 | < 5.10.19-1 | < 5.10.19-1
- ubuntu•linux
< 4.15.0-147.151 | < 5.4.0-70.78
- ubuntu•linux-aws
< 4.15.0-1106.113 | < 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
< 4.15.0-2048.50 | all | < 5.4.0-1069.73+fips2
- ubuntu•linux-aws-hwe
< 4.15.0-1106.113~16.04.1
- ubuntu•linux-azure
< 4.15.0-1118.131~14.04.1 | < 4.15.0-1118.131~16.04.1 | all | < 5.4.0-1043.45
- ubuntu•linux-azure-4.15
< 4.15.0-1118.131
- 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-fips
< 4.15.0-2030.33 | all | < 5.4.0-1073.76+fips1
- ubuntu•linux-bluefield
all
- ubuntu•linux-dell300x
< 4.15.0-1022.26
- ubuntu•linux-fips
all | < 4.15.0-1063.71
- ubuntu•linux-gcp
< 4.15.0-1103.116~16.04.1 | all | < 5.4.0-1040.43
- ubuntu•linux-gcp-4.15
< 4.15.0-1103.116
- 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
< 4.15.0-147.151~16.04.1 | all
- 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
< 4.15.0-1094.96 | < 5.4.0-1036.37
- ubuntu•linux-oem
all
- ubuntu•linux-oem-5.10
< 5.10.0-1017.18
- ubuntu•linux-oem-5.6
all
- ubuntu•linux-oracle
< 4.15.0-1075.83~16.04.1 | < 4.15.0-1075.83 | < 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
< 4.15.0-1089.94 | all
- ubuntu•linux-raspi2-5.3
< 5.3.0-1038.40
- ubuntu•linux-realtime
all
- ubuntu•linux-riscv
all
Showing first 50 affected entries in server-rendered view.
References (6)
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3600
- https://ubuntu.com/security/notices/USN-5003-1
- https://git.kernel.org/linus/e88b2c6e5a4d9ce30d75391e4d950da74bb2bd90
- https://ubuntu.com/security/CVE-2021-3600
- https://www.cve.org/CVERecord?id=CVE-2021-3600
- https://security-tracker.debian.org/tracker/CVE-2021-3600