CVE-2021-3772

Aliases:UBUNTU-CVE-2021-3772DEBIAN-CVE-2021-3772
Advisory lineage Upstream: 0 Downstream: 33
Modified
Published: 02 Mar 2022, 00:00
Last modified:03 Aug 2024, 17:09

Vulnerability Summary

Overall Risk (default)
medium
26/100
CVSS Score
6.5 MEDIUM
v3.1 (nvd)
EPSS Score
1.24% LOW
1% probability +1.08%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

02 Mar 2022, 00:00
Published
Vulnerability first disclosed
03 Aug 2024, 17:09
Last Modified
Vulnerability information updated

Description

A flaw was found in the Linux SCTP stack. A blind attacker may be able to kill an existing SCTP association through invalid chunks if the attacker knows the IP-addresses and port numbers being used and the attacker can send packets with spoofed IP addresses.

CVSS Metrics

  • v3.1•MEDIUM•Score: 6.5CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H
  • v2.0•MEDIUM•Score: 5.8AV:N/AC:M/Au:N/C:N/I:P/A:P

EPSS Trends

Current EPSS score: 1.24%• Percentile: 68%

Techniques & Countermeasures

  • CWE-354•Improper Validation of Integrity Check Value

    The product does not validate or incorrectly validates the integrity check values or "checksums" of a message. This may prevent it from detecting if the data has been modified or corrupted in transmission.

Affected Systems

  • debian•linux

    < 5.10.84-1 | < 5.14.16-1 | < 5.14.16-1 | < 5.14.16-1

  • ubuntu•linux

    all | < 4.4.0-239.273 | < 4.15.0-184.194 | < 5.4.0-117.132

  • ubuntu•linux-aws

    < 4.4.0-1117.123 | < 4.4.0-1155.170 | < 4.15.0-1133.143 | < 5.4.0-1078.84

  • ubuntu•linux-aws-5.0

    all

  • ubuntu•linux-aws-5.11

    < 5.11.0-1028.31~20.04.1

  • ubuntu•linux-aws-5.13

    < 5.13.0-1012.13~20.04.1

  • ubuntu•linux-aws-5.3

    all

  • ubuntu•linux-aws-5.4

    < 5.4.0-1078.84~18.04.1

  • ubuntu•linux-aws-5.8

    all

  • ubuntu•linux-aws-fips

    < 4.15.0-2072.76 | all | < 5.4.0-1078.84+fips1

  • ubuntu•linux-aws-hwe

    < 4.15.0-1133.143~16.04.1

  • ubuntu•linux-azure

    < 4.15.0-1142.156~14.04.1 | < 4.15.0-1142.156~16.04.1 | all | < 5.4.0-1083.87

  • ubuntu•linux-azure-4.15

    < 4.15.0-1142.156

  • ubuntu•linux-azure-5.11

    < 5.11.0-1028.31~20.04.2

  • ubuntu•linux-azure-5.13

    < 5.13.0-1013.15~20.04.1

  • ubuntu•linux-azure-5.3

    all

  • ubuntu•linux-azure-5.4

    < 5.4.0-1083.87~18.04.1

  • ubuntu•linux-azure-5.8

    all

  • ubuntu•linux-azure-edge

    all

  • ubuntu•linux-azure-fde-5.15

    < 5.15.0-1114.123~20.04.1

  • ubuntu•linux-azure-fips

    < 4.15.0-2053.58 | all | < 5.4.0-1083.87+fips1

  • ubuntu•linux-bluefield

    all | < 5.4.0-1040.44

  • ubuntu•linux-dell300x

    < 4.15.0-1047.52

  • ubuntu•linux-fips

    < 4.4.0-1088.95 | all | < 4.15.0-1090.100 | < 5.4.0-1054.61

  • ubuntu•linux-gcp

    < 4.15.0-1127.142~16.04.1 | all | < 5.4.0-1078.84

  • ubuntu•linux-gcp-4.15

    < 4.15.0-1127.142

  • ubuntu•linux-gcp-5.11

    < 5.11.0-1029.33~20.04.3

  • ubuntu•linux-gcp-5.13

    < 5.13.0-1013.16~20.04.1

  • ubuntu•linux-gcp-5.3

    all

  • ubuntu•linux-gcp-5.4

    < 5.4.0-1078.84~18.04.1

  • ubuntu•linux-gcp-5.8

    all

  • ubuntu•linux-gcp-edge

    all

  • ubuntu•linux-gcp-fips

    < 4.15.0-2037.41 | all | < 5.4.0-1078.84+fips1

  • ubuntu•linux-gke

    < 5.4.0-1074.79

  • ubuntu•linux-gke-4.15

    all

  • ubuntu•linux-gke-5.4

    < 5.4.0-1074.79~18.04.1

  • ubuntu•linux-gkeop

    < 5.4.0-1046.48

  • ubuntu•linux-gkeop-5.4

    < 5.4.0-1046.48~18.04.1

  • ubuntu•linux-hwe

    < 4.15.0-184.194~16.04.1 | all

  • ubuntu•linux-hwe-5.11

    all

  • ubuntu•linux-hwe-5.13

    < 5.13.0-28.31~20.04.1

  • ubuntu•linux-hwe-5.4

    < 5.4.0-117.132~18.04.1

  • ubuntu•linux-hwe-5.8

    all

  • ubuntu•linux-hwe-edge

    all | all

  • ubuntu•linux-ibm

    < 5.4.0-1026.29

  • ubuntu•linux-ibm-5.4

    < 5.4.0-1028.32~18.04.1

  • ubuntu•linux-intel-5.13

    all

  • ubuntu•linux-intel-iot-realtime

    all

  • ubuntu•linux-iot

    < 5.4.0-1004.6

  • ubuntu•linux-kvm

    < 4.4.0-1118.128 | < 4.15.0-1119.123 | < 5.4.0-1068.72

Showing first 50 affected entries in server-rendered view.

References (18)