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TI-2018-14557 Aliases CVE-2018-20532GHSA-7f23-525w-gw6h

There is a NULL pointer dereference at ext/testcase.c (function testcase_read) in…

Priority LOW 33CWE-476Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-476.

Summary

There is a NULL pointer dereference at ext/testcase.c (function testcase_read) in libsolvext.a in libsolv through 0.7.2 that will cause a denial of service.

Why it matters now

EPSS 0.02062 81st percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed Red Hat: 1 advisory

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 · 2

CPEVersionsRoleVendor
cpe:2.3:a:opensuse:libsolv:*:*:*:*:*:*:*:*up to 0.7.2VulnerableopenSUSE
cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*18.10VulnerableCanonical
  • cpe:2.3:a:opensuse:libsolv:*:*:*:*:*:*:*:* Versions up to 0.7.2 Vulnerable ·openSUSE
  • cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:* Versions 18.10 Vulnerable ·Canonical

Remediation

Red Hat 1 advisory

  • RHSA-2019:2290 Released 2019-08-06 · Red Hat rating Low
    libsolv security and bug fix update
    • Red Hat Enterprise Linux Client (v. 7) libsolv-0.6.34-4.el7
    • Red Hat Enterprise Linux Client Optional (v. 7) libsolv-demo-0.6.34-4.el7, libsolv-devel-0.6.34-4.el7, libsolv-tools-0.6.34-4.el7 +1
    • Red Hat Enterprise Linux ComputeNode (v. 7) libsolv-0.6.34-4.el7
    • Red Hat Enterprise Linux ComputeNode Optional (v. 7) libsolv-demo-0.6.34-4.el7, libsolv-devel-0.6.34-4.el7, libsolv-tools-0.6.34-4.el7 +1
    • Red Hat Enterprise Linux Server (v. 7) libsolv-0.6.34-4.el7, libsolv-0.6.34-4.el7.ppc
    • Red Hat Enterprise Linux Server Optional (v. 7) libsolv-demo-0.6.34-4.el7, libsolv-devel-0.6.34-4.el7, libsolv-devel-0.6.34-4.el7.ppc +3
    • Red Hat Enterprise Linux Workstation (v. 7) libsolv-0.6.34-4.el7
    • Red Hat Enterprise Linux Workstation Optional (v. 7) libsolv-demo-0.6.34-4.el7, libsolv-devel-0.6.34-4.el7, libsolv-tools-0.6.34-4.el7 +1

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux Client (v. 7)Fixed RHSA-2019:2290
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2019:2290
Red Hat Enterprise Linux ComputeNode (v. 7)Fixed RHSA-2019:2290
Red Hat Enterprise Linux ComputeNode Optional (v. 7)Fixed RHSA-2019:2290
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2019:2290
Red Hat Enterprise Linux Server Optional (v. 7)Fixed RHSA-2019:2290
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2019:2290
Red Hat Enterprise Linux Workstation Optional (v. 7)Fixed RHSA-2019:2290
Not affected: 1 product
  • Red Hat Enterprise Linux 8

Timeline

  1. 2026-10-02 Threatist record created from CVE-2018-20532
  2. 2026-10-03 Alias added: GHSA-7f23-525w-gw6h

References

Exploit 1

Patch 1

Advisory 3

Sources

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