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TI-2019-09565 Aliases CVE-2019-12779GHSA-wc62-h53h-g8qf

libqb before 1.0.5 allows local users to overwrite arbitrary files via a symlink attack…

Priority LOW 32CWE-59Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · High · High
Fix status
Partial Red Hat: 9 fixed, 2 without a fix

Attack profile from CVSS 3.0 · NVD. Fix status from CNA and Red Hat.

Summary

libqb before 1.0.5 allows local users to overwrite arbitrary files via a symlink attack, because it uses predictable filenames (under /dev/shm and /tmp) without O_EXCL.

Why it matters now

EPSS 0.00655 51st percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by NVD
Fix Partial Red Hat: 2 advisoriesRed Hat: 9 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 · 1

CPEVersionsRoleVendor
cpe:2.3:a:clusterlabs:libqb:*:*:*:*:*:*:*:*before 1.0.5VulnerableClusterLabs
  • cpe:2.3:a:clusterlabs:libqb:*:*:*:*:*:*:*:* Versions before 1.0.5 Vulnerable ·ClusterLabs

Remediation

Red Hat 2 advisories

  • RHSA-2020:1189 Released 2020-03-31 · Red Hat rating Moderate
    libqb security update
    • Red Hat Enterprise Linux Client (v. 7) libqb-1.0.1-9.el7
    • Red Hat Enterprise Linux Client Optional (v. 7) libqb-devel-1.0.1-9.el7
    • Red Hat Enterprise Linux ComputeNode (v. 7) libqb-1.0.1-9.el7
    • Red Hat Enterprise Linux ComputeNode Optional (v. 7) libqb-devel-1.0.1-9.el7
    • Red Hat Enterprise Linux Server (v. 7) libqb-1.0.1-9.el7, libqb-1.0.1-9.el7.ppc, libqb-devel-1.0.1-9.el7
    • Red Hat Enterprise Linux Server Optional (v. 7) libqb-devel-1.0.1-9.el7, libqb-devel-1.0.1-9.el7.ppc
    • Red Hat Enterprise Linux Workstation (v. 7) libqb-1.0.1-9.el7
    • Red Hat Enterprise Linux Workstation Optional (v. 7) libqb-devel-1.0.1-9.el7
  • RHSA-2019:3610 Released 2019-11-05 · Red Hat rating Moderate
    libqb security and bug fix update
    • Red Hat Enterprise Linux BaseOS (v. 8) libqb-1.0.3-10.el8, libqb-devel-1.0.3-10.el8

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux 6AffectedNo fix planned: Out of support scope
Red Hat Storage 3AffectedNo fix planned: Will not fix
Red Hat Enterprise Linux BaseOS (v. 8)Fixed RHSA-2019:3610
Red Hat Enterprise Linux Client (v. 7)Fixed RHSA-2020:1189
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2020:1189
Red Hat Enterprise Linux ComputeNode (v. 7)Fixed RHSA-2020:1189
Red Hat Enterprise Linux ComputeNode Optional (v. 7)Fixed RHSA-2020:1189
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2020:1189
Red Hat Enterprise Linux Server Optional (v. 7)Fixed RHSA-2020:1189
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2020:1189
Red Hat Enterprise Linux Workstation Optional (v. 7)Fixed RHSA-2020:1189

Timeline

  1. 2026-10-02 Threatist record created from CVE-2019-12779
  2. 2026-10-03 Alias added: GHSA-wc62-h53h-g8qf
  3. 2026-10-13 EPSS moved to the 50th–90th percentile

References

Exploit 2

Advisory 7

  • TI-2023-20869 log_blackbox.c in libqb before 2.0.8 allows a buffer overflow via long log messages… CVSS 3.1CRITICAL 9.8

Sources

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