CVE-2020-10769

Aliases:UBUNTU-CVE-2020-10769DEBIAN-CVE-2020-10769
Advisory lineage Upstream: 0 Downstream: 18
Modified
Published: 26 Jun 2020, 15:32
Last modified:04 Aug 2024, 11:14

Vulnerability Summary

Overall Risk (default)
medium
32/100
CVSS Score
5.5 MEDIUM
v3.1 (nvd)
EPSS Score
0.49% LOW
0% probability +0.31%
KEV
Not listed
Ransomware
No reports
Public exploits
1 found
Dark Web
Not detected

Timeline

26 Jun 2020, 15:32
Published
Vulnerability first disclosed
04 Aug 2024, 11:14
Last Modified
Vulnerability information updated

Description

A buffer over-read flaw was found in RH kernel versions before 5.0 in crypto_authenc_extractkeys in crypto/authenc.c in the IPsec Cryptographic algorithm's module, authenc. When a payload longer than 4 bytes, and is not following 4-byte alignment boundary guidelines, it causes a buffer over-read threat, leading to a system crash. This flaw allows a local attacker with user privileges to cause a denial of service.

CVSS Metrics

  • v3.1•MEDIUM•Score: 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  • v2.0•LOW•Score: 2.1AV:L/AC:L/Au:N/C:N/I:N/A:P

EPSS Trends

Current EPSS score: 0.49%• Percentile: 41%

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

  • debian•linux

    < 4.19.20-1 | < 4.19.20-1 | < 4.19.20-1 | < 4.19.20-1

  • ubuntu•linux

    all | < 4.4.0-145.171 | < 4.15.0-55.60

  • ubuntu•linux-aws

    < 4.4.0-1040.43 | < 4.4.0-1079.89 | < 4.15.0-1047.49

  • ubuntu•linux-aws-5.0

    all

  • ubuntu•linux-aws-fips

    < 4.15.0-2018.18 | all

  • ubuntu•linux-aws-hwe

    < 4.15.0-1047.49~16.04.1

  • ubuntu•linux-azure

    < 4.15.0-1059.64~14.04.1 | < 4.15.0-1051.56 | all

  • ubuntu•linux-azure-edge

    all

  • ubuntu•linux-azure-fde

    all

  • ubuntu•linux-azure-fde-5.15

    < 5.15.0-1114.123~20.04.1

  • ubuntu•linux-azure-fips

    < 4.15.0-2006.7 | all

  • ubuntu•linux-bluefield

    all

  • ubuntu•linux-fips

    < 4.4.0-1008.10

  • ubuntu•linux-gcp

    < 4.15.0-1037.39~16.04.1 | all

  • ubuntu•linux-gcp-edge

    all

  • ubuntu•linux-gcp-fips

    all

  • ubuntu•linux-gke

    all

  • ubuntu•linux-gke-4.15

    < 4.15.0-1037.39

  • ubuntu•linux-hwe

    < 4.15.0-55.60~16.04.2 | < 5.0.0-23.24~18.04.1

  • ubuntu•linux-hwe-edge

    all

  • ubuntu•linux-intel-iot-realtime

    all

  • ubuntu•linux-kvm

    < 4.4.0-1043.49 | < 4.15.0-1039.39

  • ubuntu•linux-lts-xenial

    < 4.4.0-144.170~14.04.1

  • ubuntu•linux-oem

    < 4.15.0-1050.57

  • ubuntu•linux-oracle

    < 4.15.0-1018.20~16.04.1 | < 4.15.0-1018.20

  • ubuntu•linux-oracle-5.0

    all

  • ubuntu•linux-raspi-realtime

    all

  • ubuntu•linux-raspi2

    < 4.4.0-1106.114 | < 4.15.0-1041.44 | all

  • ubuntu•linux-realtime

    all

  • ubuntu•linux-riscv

    all

  • ubuntu•linux-snapdragon

    < 4.4.0-1110.115 | < 4.15.0-1058.64

  • opensuse•leap

    15.1

  • redhat•enterprise_linux

    7.0

References (9)