CVE-2020-12655

Aliases:UBUNTU-CVE-2020-12655DEBIAN-CVE-2020-12655
Advisory lineage Upstream: 0 Downstream: 24
Modified
Published: 05 May 2020, 05:16
Last modified:04 Aug 2024, 12:04

Vulnerability Summary

Overall Risk (default)
low
22/100
CVSS Score
5.5 MEDIUM
v3.1 (nvd)
EPSS Score
0.45% LOW
0% probability +0.37%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

05 May 2020, 05:16
Published
Vulnerability first disclosed
04 Aug 2024, 12:04
Last Modified
Vulnerability information updated

Description

An issue was discovered in xfs_agf_verify in fs/xfs/libxfs/xfs_alloc.c in the Linux kernel through 5.6.10. Attackers may trigger a sync of excessive duration via an XFS v5 image with crafted metadata, aka CID-d0c7feaf8767.

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: 0.45%• Percentile: 39%

Techniques & Countermeasures

  • CWE-835•Loop with Unreachable Exit Condition ('Infinite Loop')

    The product contains an iteration or loop with an exit condition that cannot be reached, i.e., an infinite loop.

Affected Systems

  • debian•linux

    < 5.6.14-1 | < 5.6.14-1 | < 5.6.14-1 | < 5.6.14-1

  • ubuntu•linux

    all | < 4.4.0-222.255 | < 4.15.0-115.116 | < 5.4.0-45.49

  • ubuntu•linux-aws

    < 4.4.0-1102.107 | < 4.4.0-1138.152 | < 4.15.0-1080.84 | < 5.4.0-1022.22

  • ubuntu•linux-aws-5.0

    all

  • ubuntu•linux-aws-5.3

    < 5.3.0-1033.35

  • ubuntu•linux-aws-5.4

    < 5.4.0-1022.22~18.04.1

  • ubuntu•linux-aws-fips

    < 4.15.0-2025.25 | all | < 5.4.0-1069.73+fips2

  • ubuntu•linux-aws-hwe

    < 4.15.0-1080.84~16.04.1

  • ubuntu•linux-azure

    < 4.15.0-1093.103~14.04.1 | < 4.15.0-1093.103~16.04.1 | all | < 5.4.0-1023.23

  • ubuntu•linux-azure-4.15

    < 4.15.0-1093.103

  • ubuntu•linux-azure-5.3

    < 5.3.0-1035.36

  • ubuntu•linux-azure-5.4

    < 5.4.0-1023.23~18.04.1

  • 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

    < 4.15.0-2007.8 | all | < 5.4.0-1073.76+fips1

  • ubuntu•linux-bluefield

    all

  • ubuntu•linux-fips

    < 4.4.0-1072.78 | all | < 4.15.0-1039.44

  • ubuntu•linux-gcp

    < 4.15.0-1081.92~16.04.1 | all | < 5.4.0-1022.22

  • ubuntu•linux-gcp-4.15

    < 4.15.0-1081.92

  • ubuntu•linux-gcp-5.3

    all

  • ubuntu•linux-gcp-5.4

    < 5.4.0-1022.22~18.04.1

  • ubuntu•linux-gcp-edge

    all

  • ubuntu•linux-gcp-fips

    all | < 5.4.0-1067.71~20.04.1

  • ubuntu•linux-gke

    all

  • ubuntu•linux-gke-4.15

    < 4.15.0-1067.70

  • ubuntu•linux-gke-5.3

    < 5.3.0-1033.35

  • ubuntu•linux-hwe

    < 4.15.0-115.116~16.04.1 | < 5.3.0-65.59

  • ubuntu•linux-hwe-5.4

    < 5.4.0-45.49~18.04.2

  • ubuntu•linux-hwe-edge

    all | all

  • ubuntu•linux-intel-iot-realtime

    all

  • ubuntu•linux-kvm

    < 4.4.0-1103.112 | < 4.15.0-1072.73 | < 5.4.0-1021.21

  • ubuntu•linux-lts-xenial

    < 4.4.0-222.255~14.04.1

  • ubuntu•linux-oem

    < 4.15.0-1094.104

  • ubuntu•linux-oem-5.6

    < 5.6.0-1031.32

  • ubuntu•linux-oracle

    < 4.15.0-1051.55~16.04.1 | < 4.15.0-1051.55 | < 5.4.0-1022.22

  • ubuntu•linux-oracle-5.0

    all

  • ubuntu•linux-oracle-5.3

    all

  • ubuntu•linux-oracle-5.4

    < 5.4.0-1022.22~18.04.1

  • ubuntu•linux-raspi

    < 5.4.0-1016.17

  • ubuntu•linux-raspi-5.4

    < 5.4.0-1016.17~18.04.1

  • ubuntu•linux-raspi-realtime

    all

  • ubuntu•linux-raspi2

    < 4.15.0-1068.72 | all

  • ubuntu•linux-raspi2-5.3

    < 5.3.0-1032.34

  • ubuntu•linux-realtime

    all

  • ubuntu•linux-riscv

    < 5.4.0-31.35 | all

  • ubuntu•linux-snapdragon

    < 4.15.0-1084.92

  • linux•linux_kernel

    ≤ 5.6.10

References (23)