Info-ZIP UnZip 6.0 has a buffer overflow in list.c, when a ZIP archive has a crafted…
Priority LOW 30CWE-119Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Partial Red Hat: 4 fixed, 2 without a fix
Attack profile from CVSS 3.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-119 and the CVSS impact.
Summary
Info-ZIP UnZip 6.0 has a buffer overflow in list.c, when a ZIP archive has a crafted relationship between the compressed-size value and the uncompressed-size value, because a buffer size is 10 and is supposed to be 12.
Why it matters now
EPSS 0.02565 85th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Partial Red Hat: 1 advisoryRed Hat: 4 fixed, 2 without a fix
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:unzip_project:unzip:6.0:*:*:*:*:*:*:* | 6.0 | Vulnerable | Unzip Project |
- cpe:2.3:a:unzip_project:unzip:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·Unzip Project
Remediation
Red Hat 1 advisory
- RHSA-2019:2159 Released 2019-08-06 · Red Hat rating Lowunzip security update
- Red Hat Enterprise Linux Client (v. 7) unzip-6.0-20.el7
- Red Hat Enterprise Linux ComputeNode (v. 7) unzip-6.0-20.el7
- Red Hat Enterprise Linux Server (v. 7) unzip-6.0-20.el7
- Red Hat Enterprise Linux Workstation (v. 7) unzip-6.0-20.el7
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 5 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Linux Client (v. 7) | Fixed | RHSA-2019:2159 |
| Red Hat Enterprise Linux ComputeNode (v. 7) | Fixed | RHSA-2019:2159 |
| Red Hat Enterprise Linux Server (v. 7) | Fixed | RHSA-2019:2159 |
| Red Hat Enterprise Linux Workstation (v. 7) | Fixed | RHSA-2019:2159 |
Not affected: 1 product
- Red Hat Enterprise Linux 8
Timeline
- 2026-10-02 Threatist record created from CVE-2018-18384
- 2026-10-03 Alias added: GHSA-jjvf-xm75-cph5
References
More Unzip Project Unzip vulnerabilities
- TI-2020-18789 Path traversal in github.com/yi-ge/unzip CVSS 3.1CRITICAL 9.1
- TI-2018-15695 A heap-based buffer overflow exists in Info-Zip UnZip version <= 6.00 in the processing… CVSS 3.0HIGH 7.8
- TI-2008-00852 Memory corruption in Info-ZIP unzip CVSS 2.0HIGH 9.3
- TI-2014-06756 Out-of-bounds write in Info-ZIP UnZip CVSS 3.1HIGH 7.8
- TI-2014-06755 Out-of-bounds write in Info-ZIP UnZip CVSS 3.1HIGH 7.8
- TI-2014-06754 Out-of-bounds write in Info-ZIP UnZip CVSS 3.1HIGH 7.8
Sources
- CVE-2018-18384 · CVE Program
- CVE-2018-18384 · NVD
- FIRST EPSS
- GHSA-jjvf-xm75-cph5 · GitHub Advisory Database · CC BY 4.0
- CVE-2018-18384 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences