CVE-2021-28950

Aliases:UBUNTU-CVE-2021-28950DEBIAN-CVE-2021-28950
Advisory lineage Upstream: 0 Downstream: 31
Modified
Published: 20 Mar 2021, 19:55
Last modified:03 Aug 2024, 21:55

Vulnerability Summary

Overall Risk (default)
low
22/100
CVSS Score
5.5 MEDIUM
v3.1 (nvd)
EPSS Score
0.36% LOW
0% probability +0.33%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

20 Mar 2021, 19:55
Published
Vulnerability first disclosed
03 Aug 2024, 21:55
Last Modified
Vulnerability information updated

Description

An issue was discovered in fs/fuse/fuse_i.h in the Linux kernel before 5.11.8. A "stall on CPU" can occur because a retry loop continually finds the same bad inode, aka CID-775c5033a0d1.

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: 0.36%• Percentile: 30%

Techniques & Countermeasures

  • CWE-834•Excessive Iteration

    The product performs an iteration or loop without sufficiently limiting the number of times that the loop is executed.

Affected Systems

  • debian•linux

    < 5.10.24-1 | < 5.10.24-1 | < 5.10.24-1 | < 5.10.24-1

  • ubuntu•linux

    < 5.4.0-74.83

  • ubuntu•linux-aws

    < 5.4.0-1049.51

  • ubuntu•linux-aws-5.0

    all

  • ubuntu•linux-aws-5.3

    all

  • ubuntu•linux-aws-5.4

    < 5.4.0-1049.51~18.04.1

  • ubuntu•linux-azure

    all | < 5.4.0-1048.50

  • ubuntu•linux-azure-5.3

    all

  • ubuntu•linux-azure-5.4

    < 5.4.0-1048.50~18.04.1

  • ubuntu•linux-azure-edge

    all

  • ubuntu•linux-bluefield

    all | < 5.4.0-1012.15

  • ubuntu•linux-fips

    all

  • ubuntu•linux-gcp

    all | < 5.4.0-1044.47

  • ubuntu•linux-gcp-5.3

    all

  • ubuntu•linux-gcp-5.4

    < 5.4.0-1044.47~18.04.2

  • ubuntu•linux-gcp-edge

    all

  • ubuntu•linux-gke

    < 5.4.0-1044.46

  • ubuntu•linux-gke-4.15

    all

  • ubuntu•linux-gke-5.4

    < 5.4.0-1044.46~18.04.1

  • ubuntu•linux-gkeop

    < 5.4.0-1016.17

  • ubuntu•linux-gkeop-5.4

    < 5.4.0-1016.17~18.04.1

  • ubuntu•linux-hwe

    all

  • ubuntu•linux-hwe-5.4

    < 5.4.0-74.83~18.04.1

  • ubuntu•linux-hwe-5.8

    < 5.8.0-55.62~20.04.1

  • ubuntu•linux-hwe-edge

    all

  • ubuntu•linux-intel-iot-realtime

    all

  • ubuntu•linux-kvm

    < 5.4.0-1040.41

  • ubuntu•linux-oem

    all

  • ubuntu•linux-oem-5.10

    < 5.10.0-1021.22

  • ubuntu•linux-oracle

    < 5.4.0-1046.50

  • ubuntu•linux-oracle-5.0

    all

  • ubuntu•linux-oracle-5.3

    all

  • ubuntu•linux-oracle-5.4

    < 5.4.0-1046.50~18.04.2

  • ubuntu•linux-raspi

    < 5.4.0-1036.39

  • ubuntu•linux-raspi-5.4

    < 5.4.0-1036.39~18.04.1

  • ubuntu•linux-raspi-realtime

    all

  • ubuntu•linux-raspi2

    all

  • ubuntu•linux-realtime

    all

  • ubuntu•linux-riscv

    all

  • ubuntu•linux-riscv-5.8

    < 5.8.0-26.28~20.04.1

  • debian•debian_linux

    9.0

  • fedoraproject•fedora

    33 | 34

  • linux•linux_kernel

    < 5.11.8

References (15)