CVE-2021-45485

Aliases:UBUNTU-CVE-2021-45485DEBIAN-CVE-2021-45485
Advisory lineage Upstream: 0 Downstream: 24
Analyzed
Published: 25 Dec 2021, 01:05
Last modified:04 Aug 2024, 04:39

Vulnerability Summary

Overall Risk (default)
medium
31/100
CVSS Score
7.5 HIGH
v3.1 (nvd)
EPSS Score
3.58% LOW
4% probability +3.07%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

25 Dec 2021, 01:05
Published
Vulnerability first disclosed
04 Aug 2024, 04:39
Last Modified
Vulnerability information updated

Description

In the IPv6 implementation in the Linux kernel before 5.13.3, net/ipv6/output_core.c has an information leak because of certain use of a hash table which, although big, doesn't properly consider that IPv6-based attackers can typically choose among many IPv6 source addresses.

CVSS Metrics

  • v3.1•HIGH•Score: 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
  • v2.0•MEDIUM•Score: 5AV:N/AC:L/Au:N/C:P/I:N/A:N

EPSS Trends

Current EPSS score: 3.58%• Percentile: 89%

Techniques & Countermeasures

  • CWE-327•Use of a Broken or Risky Cryptographic Algorithm

    The product uses a broken or risky cryptographic algorithm or protocol.

Affected Systems

  • debian•linux

    < 5.10.70-1 | < 5.14.6-1 | < 5.14.6-1 | < 5.14.6-1

  • ubuntu•linux

    all | < 4.4.0-219.252 | < 4.15.0-156.163 | < 5.4.0-84.94

  • ubuntu•linux-aws

    < 4.4.0-1099.104 | < 4.4.0-1135.149 | < 4.15.0-1111.118 | < 5.4.0-1056.59

  • ubuntu•linux-aws-5.0

    all

  • ubuntu•linux-aws-5.11

    < 5.11.0-1019.20~20.04.1

  • ubuntu•linux-aws-5.3

    all

  • ubuntu•linux-aws-5.4

    < 5.4.0-1056.59~18.04.1

  • ubuntu•linux-aws-5.8

    all

  • ubuntu•linux-aws-fips

    < 4.15.0-2053.55 | all | < 5.4.0-1069.73+fips2

  • ubuntu•linux-aws-hwe

    < 4.15.0-1111.118~16.04.1

  • ubuntu•linux-azure

    < 4.15.0-1123.136~14.04.1 | < 4.15.0-1123.136~16.04.1 | all | < 5.4.0-1058.60

  • ubuntu•linux-azure-4.15

    < 4.15.0-1123.136

  • ubuntu•linux-azure-5.11

    < 5.11.0-1017.18~20.04.1

  • ubuntu•linux-azure-5.3

    all

  • ubuntu•linux-azure-5.4

    < 5.4.0-1058.60~18.04.1

  • 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

    < 4.15.0-2035.39 | all | < 5.4.0-1073.76+fips1

  • ubuntu•linux-bluefield

    all | < 5.4.0-1019.22

  • ubuntu•linux-dell300x

    < 4.15.0-1027.32

  • ubuntu•linux-fips

    < 4.4.0-1069.75 | all | < 4.15.0-1069.78 | < 5.4.0-1033.38

  • ubuntu•linux-gcp

    < 4.15.0-1108.122~16.04.1 | all | < 5.4.0-1052.56

  • ubuntu•linux-gcp-4.15

    < 4.15.0-1108.122

  • ubuntu•linux-gcp-5.11

    < 5.11.0-1020.22~20.04.1

  • ubuntu•linux-gcp-5.3

    all

  • ubuntu•linux-gcp-5.4

    < 5.4.0-1052.56~18.04.1

  • ubuntu•linux-gcp-5.8

    all

  • ubuntu•linux-gcp-fips

    < 4.15.0-2018.20 | all | < 5.4.0-1067.71~20.04.1

  • ubuntu•linux-gke

    < 5.4.0-1052.55

  • ubuntu•linux-gke-4.15

    all

  • ubuntu•linux-gke-5.4

    < 5.4.0-1052.55~18.04.1

  • ubuntu•linux-gkeop

    < 5.4.0-1023.24

  • ubuntu•linux-gkeop-5.4

    < 5.4.0-1023.24~18.04.1

  • ubuntu•linux-hwe

    < 4.15.0-156.163~16.04.1 | all

  • ubuntu•linux-hwe-5.11

    all

  • ubuntu•linux-hwe-5.4

    < 5.4.0-84.94~18.04.1

  • ubuntu•linux-hwe-5.8

    all

  • ubuntu•linux-hwe-edge

    all | all

  • ubuntu•linux-intel-5.13

    all

  • ubuntu•linux-intel-iot-realtime

    all

  • ubuntu•linux-kvm

    < 4.4.0-1100.109 | < 4.15.0-1099.101 | < 5.4.0-1046.48

  • ubuntu•linux-lts-xenial

    < 4.4.0-219.252~14.04.1

  • ubuntu•linux-oem

    all

  • ubuntu•linux-oem-5.10

    < 5.10.0-1049.51

  • ubuntu•linux-oem-5.13

    < 5.13.0-1014.18

  • ubuntu•linux-oem-5.6

    all

  • ubuntu•linux-oracle

    < 4.15.0-1080.88~16.04.1 | < 4.15.0-1080.88 | < 5.4.0-1054.58

  • ubuntu•linux-oracle-5.0

    all

  • ubuntu•linux-oracle-5.11

    < 5.11.0-1019.20~20.04.1

Showing first 50 affected entries in server-rendered view.

References (11)