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pkgconf version 1.5.0 to 1.5.2 contains a Buffer Overflow vulnerability in dequote() that…

Priority MEDIUM 45CWE-119Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-119 and the CVSS impact.

Summary

pkgconf version 1.5.0 to 1.5.2 contains a Buffer Overflow vulnerability in dequote() that can result in dequote() function returns 1-byte allocation if initial length is 0, leading to buffer overflow. This attack appear to be exploitable via specially crafted .pc file. This vulnerability appears to have been fixed in 1.5.3.

Why it matters now

EPSS 0.01352 71st percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

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:pkgconf:pkgconf:*:*:*:*:*:*:*:*1.5.0 – 1.5.2VulnerablePkgconf
  • cpe:2.3:a:pkgconf:pkgconf:*:*:*:*:*:*:*:* Versions 1.5.0 – 1.5.2 Vulnerable ·Pkgconf

Remediation

No fixed version listed by the sources yet.

Vendor assessments

Red Hat

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

Not affected: 1 product
  • Red Hat Enterprise Linux 8

Timeline

  1. 2026-10-02 Threatist record created from CVE-2018-1000221
  2. 2026-10-03 Alias added: GHSA-x83w-rcx4-rx6c

References

  • TI-2023-09834 In pkgconf through 1.9.3, variable duplication can cause unbounded string expansion due… CVSS 3.1MEDIUM 5.5

Sources