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01 Record

CVE-2020-8831

World writable root owned lock file created in user controllable location

MediumPUBLISHEDCNA: canonical
CNA base score6.5 CVSS v3.xCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N

02 Description

World writable root owned lock file created in user controllable location

03 Exploitation and scoring

Exploitation
Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision
Not assessed by CISA
EPSS probability
0.65% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 50.6% of scored records. A rank, not a probability.
NVD base score
5.5 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2020-04-22 21:15Z6 YR AGO
Last updated
2024-09-16 19:00Z2 YR AGO
Reserved
2020-02-10
Assigning CNA
canonical
Record state
PUBLISHED
Severity
Medium (CVSS 6.5)
CNA CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N
Weaknesses
  • CWE-379Creation of Temporary File in Directory with Insecure PermissionsBase
  • CWE-59Improper Link Resolution Before File Access ('Link Following')Base
Data version
5.1
Document digest
4c9e0b4b18e09eec0ecac1602f1d597a56d47dedc55e890f89d0950d6a36e16f

05 Affected products

VendorProductVersionsPlatforms
CanonicalApport2.20.1 to < 2.20.1-0ubuntu2.23, 2.20.9 to < 2.20.9-0ubuntu7.14, 2.20.11 to < 2.20.11-0ubuntu8.8—

06 References

07 Fixed in

Ubuntu 16.04 LTS

  • apport
    Fixed in 2.20.1-0ubuntu2.23

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 18.04 LTS

  • apport
    Fixed in 2.20.9-0ubuntu7.14

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 20.04 LTS

  • apport
    Fixed in 2.20.11-0ubuntu22

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro 14.04 LTS

  • apport
    Fixed in 2.14.1-0ubuntu3.29+esm4
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.