3.3

CVE-2019-19126: canonical ubuntu_linux Improper Initialization

Modified
AliasesMGASA-2019-0349SUSE-SU-2020:0262-1RHSA-2020:1828
Published 19-11-2019Last modified 14-10-2026

Vulnerability summary

CVE-2019-19126 is a low (CVSS 3.3) Improper Initialization vulnerability in canonical ubuntu_linux. EPSS estimates a 0.41% chance of exploitation in the next 30 days, higher than 35.4% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 3.3, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
3.3/10
010
Low · v3.1 (NVD)
EPSS score
0.41%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 3 · Related 2
DLA-3152-1OPENSUSE-SU-2024:10792-1USN-4416-1

Timeline

  1. 19-11-2019
    PublishedVulnerability first disclosed.
  2. 14-10-2026
    Last modifiedVulnerability information updated.

Description

On the x86-64 architecture, the GNU C Library (aka glibc) before 2.31 fails to ignore the LD_PREFER_MAP_32BIT_EXEC environment variable during program execution after a security transition, allowing local attackers to restrict the possible mapping addresses for loaded libraries and thus bypass ASLR for a setuid program.

CVSS metrics

5 scores · 4 sources · 3 versions

EPSS trend

Probability

0.41%

Chance of exploitation in the next 30 days

Percentile

35%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.41% 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

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

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

Redhat193 products
  • compat-libpthread-nonshared< 0:2.28-101.el8
  • glibc< 0:2.28-101.el8 | < 0:2.17-317.el7
  • glibc-all-langpacks< 0:2.28-101.el8
  • glibc-benchtests< 0:2.28-101.el8
  • glibc-common< 0:2.28-101.el8 | < 0:2.17-317.el7
Debian2 products
Canonical1 product
Fedoraproject1 product
Gnu1 product
Mageia1 product
  • glibc< 2.29-19.mga7
Ubuntu1 product
  • glibc< 2.23-0ubuntu11.2 | < 2.27-3ubuntu1.2

7 vendors · 200 products · Showing 200 of 225

References

59 links
Show all 59 references