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TI-2019-13800 Aliases CVE-2019-19126GHSA-p4p6-gwhq-q5q7

On the x86-64 architecture, the GNU C Library (aka glibc) before 2.31 fails to ignore the…

Priority LOW 16CWE-665Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
Low · None · None
Fix status
Partial Red Hat: 12 fixed, 2 without a fix

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat.

Summary

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.

Why it matters now

EPSS 0.00411 35th percentileScored 2026-11-07
Fix Partial Red Hat: 3 advisoriesRed Hat: 12 fixed, 2 without a fix

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 7

CPEVersionsRoleVendor
cpe:2.3:a:gnu:glibc:*:*:*:*:*:*:x64:*before 2.31VulnerableGNU
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*16.04VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*18.04VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:*19.10VulnerableCanonical
cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*30VulnerableFedoraproject
cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*31VulnerableFedoraproject
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*10.0VulnerableDebian
  • cpe:2.3:a:gnu:glibc:*:*:*:*:*:*:x64:* Versions before 2.31 Vulnerable ·GNU
  • cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:* Versions 16.04 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* Versions 18.04 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:* Versions 19.10 Vulnerable ·Canonical
  • cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:* Versions 30 Vulnerable ·Fedoraproject
  • cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:* Versions 31 Vulnerable ·Fedoraproject
  • cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* Versions 10.0 Vulnerable ·Debian

Remediation

Red Hat 3 advisories

  • RHSA-2021:0949 Released 2021-03-22 · Red Hat rating Low
    Red Hat OpenShift Do openshift/odo-init-image 1.1.3 security update
    • OpenShift Do 1 openshiftdo/odo-init-image-rhel7
  • RHSA-2020:3861 Released 2020-09-29 · Red Hat rating Low
    glibc security, bug fix, and enhancement update
    • Red Hat Enterprise Linux Client (v. 7) glibc-2.17-317.el7, glibc-common-2.17-317.el7, glibc-devel-2.17-317.el7 +3
    • Red Hat Enterprise Linux Client Optional (v. 7) glibc-static-2.17-317.el7
    • Red Hat Enterprise Linux ComputeNode (v. 7) glibc-2.17-317.el7, glibc-common-2.17-317.el7, glibc-devel-2.17-317.el7 +3
    • Red Hat Enterprise Linux ComputeNode Optional (v. 7) glibc-static-2.17-317.el7
    • Red Hat Enterprise Linux Server (v. 7) glibc-2.17-317.el7, glibc-2.17-317.el7.ppc, glibc-common-2.17-317.el7 +5
    • Red Hat Enterprise Linux Server Optional (v. 7) glibc-static-2.17-317.el7, glibc-static-2.17-317.el7.ppc
    • Red Hat Enterprise Linux Workstation (v. 7) glibc-2.17-317.el7, glibc-common-2.17-317.el7, glibc-devel-2.17-317.el7 +3
    • Red Hat Enterprise Linux Workstation Optional (v. 7) glibc-static-2.17-317.el7
  • RHSA-2020:1828 Released 2020-04-28 · Red Hat rating Low
    glibc security, bug fix, and enhancement update
    • Red Hat CodeReady Linux Builder (v. 8) glibc-benchtests-2.28-101.el8, glibc-nss-devel-2.28-101.el8, glibc-static-2.28-101.el8 +1
    • Red Hat Enterprise Linux AppStream (v. 8) compat-libpthread-nonshared-2.28-101.el8, glibc-utils-2.28-101.el8
    • Red Hat Enterprise Linux BaseOS (v. 8) glibc-2.28-101.el8, glibc-all-langpacks-2.28-101.el8, glibc-common-2.28-101.el8 +47

Vendor assessments

Red Hat

Red Hat rating: Low. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 5AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux 6AffectedNo fix planned: Out of support scope
OpenShift Do 1Fixed RHSA-2021:0949
Red Hat CodeReady Linux Builder (v. 8)Fixed RHSA-2020:1828
Red Hat Enterprise Linux AppStream (v. 8)Fixed RHSA-2020:1828
Red Hat Enterprise Linux BaseOS (v. 8)Fixed RHSA-2020:1828
Red Hat Enterprise Linux Client (v. 7)Fixed RHSA-2020:3861
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2020:3861
Red Hat Enterprise Linux ComputeNode (v. 7)Fixed RHSA-2020:3861
Red Hat Enterprise Linux ComputeNode Optional (v. 7)Fixed RHSA-2020:3861
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2020:3861
Red Hat Enterprise Linux Server Optional (v. 7)Fixed RHSA-2020:3861
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2020:3861
Red Hat Enterprise Linux Workstation Optional (v. 7)Fixed RHSA-2020:3861

Timeline

  1. 2026-10-02 Threatist record created from CVE-2019-19126
  2. 2026-10-03 Alias added: GHSA-p4p6-gwhq-q5q7

References

Patch 1

Advisory 4

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences