CVE-2018-14611

Aliases:UBUNTU-CVE-2018-14611DEBIAN-CVE-2018-14611
Advisory lineage Upstream: 0 Downstream: 8
Modified
Published: 27 Jul 2018, 04:00
Last modified:05 Aug 2024, 09:29

Vulnerability Summary

Overall Risk (default)
medium
39/100
CVSS Score
7.1 HIGH
v2.0 (nvd)
EPSS Score
2.52% LOW
3% probability +2.26%
KEV
Not listed
Ransomware
No reports
Public exploits
1 found
Dark Web
Not detected

Timeline

27 Jul 2018, 04:00
Published
Vulnerability first disclosed
05 Aug 2024, 09:29
Last Modified
Vulnerability information updated

Description

An issue was discovered in the Linux kernel through 4.17.10. There is a use-after-free in try_merge_free_space() when mounting a crafted btrfs image, because of a lack of chunk type flag checks in btrfs_check_chunk_valid in fs/btrfs/volumes.c.

CVSS Metrics

  • v3.0•MEDIUM•Score: 5.5CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
  • v2.0•HIGH•Score: 7.1AV:N/AC:M/Au:N/C:N/I:N/A:C

EPSS Trends

Current EPSS score: 2.52%• Percentile: 84%

Techniques & Countermeasures

  • CWE-416•Use After Free

    The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

Affected Systems

  • debian•linux

    < 4.19.9-1 | < 4.19.9-1 | < 4.19.9-1 | < 4.19.9-1

  • ubuntu•linux

    all | < 4.4.0-145.171 | < 4.15.0-58.64

  • ubuntu•linux-aws

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

  • 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 | < 4.15.0-1055.60 | < 5.0.0-1014.14~18.04.1

  • 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

    < 4.15.0-1040.42~16.04.1 | < 4.15.0-1040.42

  • ubuntu•linux-gcp-fips

    all

  • ubuntu•linux-gke

    all

  • ubuntu•linux-gke-4.15

    < 4.15.0-1040.42

  • ubuntu•linux-hwe

    < 4.15.0-58.64~16.04.1 | < 5.0.0-23.24~18.04.1

  • ubuntu•linux-intel-iot-realtime

    all

  • ubuntu•linux-kvm

    < 4.4.0-1043.49 | < 4.15.0-1042.42

  • ubuntu•linux-lts-xenial

    < 4.4.0-144.170~14.04.1

  • ubuntu•linux-oem

    < 4.15.0-1050.57

  • ubuntu•linux-oracle

    < 4.15.0-1021.23~16.04.1 | < 4.15.0-1021.23

  • ubuntu•linux-raspi-realtime

    all

  • ubuntu•linux-raspi2

    < 4.4.0-1106.114 | < 4.15.0-1043.46 | all

  • ubuntu•linux-realtime

    all

  • ubuntu•linux-riscv

    all | all

  • ubuntu•linux-snapdragon

    < 4.4.0-1110.115 | < 4.15.0-1060.66

  • debian•debian_linux

    8.0

  • linux•linux_kernel

    ≤ 4.17.10

References (17)