5.5

CVE-2019-19039: canonical ubuntu_linux

Modified
AliasesUBUNTU-CVE-2019-19039DEBIAN-CVE-2019-19039
Published 21-11-2019Last modified 05-08-2024

Vulnerability summary

CVE-2019-19039 is a medium (CVSS 5.5) vulnerability in canonical ubuntu_linux. EPSS estimates a 0.70% chance of exploitation in the next 30 days, higher than 53.2% of scored vulnerabilities. 1 public exploit is recorded.

Priority
Routine

Not severe (CVSS 5.5, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
5.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.70%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits1github

Advisory lineage

Upstream 0 · Downstream 2 · Related 1
DLA-2483-1USN-4414-1

Timeline

  1. 21-11-2019
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

Description

__btrfs_free_extent in fs/btrfs/extent-tree.c in the Linux kernel through 5.3.12 calls btrfs_print_leaf in a certain ENOENT case, which allows local users to obtain potentially sensitive information about register values via the dmesg program. NOTE: The BTRFS development team disputes this issues as not being a vulnerability because “1) The kernel provide facilities to restrict access to dmesg - dmesg_restrict=1 sysctl option. So it's really up to the system administrator to judge whether dmesg access shall be disallowed or not. 2) WARN/WARN_ON are widely used macros in the linux kernel. If this CVE is considered valid this would mean there are literally thousands CVE lurking in the kernel - something which clearly is not the case.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

0.70%

Chance of exploitation in the next 30 days

Percentile

53%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.70% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

1 found
  • githubUnverified

    Cve

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: local access, no authentication, user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu39 products
  • linuxAll versions (No fix recorded) | < 4.15.0-109.110 | < 5.4.0-31.35
  • linux-awsAll versions (No fix recorded) | < 4.15.0-1077.81 | < 5.4.0-1011.11
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.3< 5.3.0-1019.21~18.04.1
  • linux-aws-fips< 4.15.0-2022.22 | All versions (No fix recorded)
Debian2 products
Canonical1 product
Linux1 product

4 vendors · 43 products

References

7 links