zziplib: Invalid memory access in the zzip_disk_fread function in zzip/mmapped.c
Published Jan 29, 2018
6.5
MEDIUMCVSS 3.0
EPSS 1.70%
Description
In ZZIPlib 0.13.67, 0.13.66, 0.13.65, 0.13.64, 0.13.63, 0.13.62, 0.13.61, 0.13.60, 0.13.59, 0.13.58, 0.13.57 and 0.13.56 there is a segmentation fault caused by invalid memory access in the zzip_disk_fread function (zzip/mmapped.c) because the size variable is not validated against the amount of file->stored data.
Affected products
No data.
Configuration 2
- 14.04
- 16.04
- 17.10
- 18.04
No data.
Red Hat Enterprise Linux 7
zziplib
Will not fix
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 7 | zziplib | Will not fix | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
1 other source (Red Hat) ▾
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
AV:N/AC:M/Au:N/C:N/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Table of values (9 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 1.70% (0.01698) | 76.37th | v5 (v2026.06.15) |
| Sep 20, 2026 | 1.70% (0.01698) | 76.15th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.24% (0.00240) | 62.43th | v3 (v2023.03.01) |
| Sep 3, 2023 | 0.24% (0.00240) | 61.31th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.38% (0.00382) | 68.76th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.02% (0.01018) | 40.69th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.02% (0.01018) | 19.50th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.04% (0.01040) | 28.32th | v5 (v2026.06.15) |
| Apr 14, 2021 | 1.04% (0.01040) | 0.00th | v1 |
References (8)
- https://access.redhat.com/security/cve/CVE-2018-6381 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1540183 Issue Tracking
- https://github.com/Hack-Me/Pocs_for_Multi_Versions/tree/main/CVE-2018-6381 x_refsource_MISC
- https://github.com/gdraheim/zziplib/issues/12 x_refsource_MISCExploitIssue TrackingThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/06/msg00029.html mailing-listx_refsource_MLIST
- https://nvd.nist.gov/vuln/detail/CVE-2018-6381
- https://usn.ubuntu.com/3699-1/ vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2018-6381
| Link | Providers | Tags |
|---|---|---|
| https://access.redhat.com/security/cve/CVE-2018-6381 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1540183 | Issue Tracking | |
| https://github.com/Hack-Me/Pocs_for_Multi_Versions/tree/main/CVE-2018-6381 | x_refsource_MISC | |
| https://github.com/gdraheim/zziplib/issues/12 | x_refsource_MISCExploitIssue TrackingThird Party Advisory | |
| https://lists.debian.org/debian-lts-announce/2020/06/msg00029.html | mailing-listx_refsource_MLIST | |
| https://nvd.nist.gov/vuln/detail/CVE-2018-6381 | ||
| https://usn.ubuntu.com/3699-1/ | vendor-advisoryx_refsource_UBUNTUThird Party Advisory | |
| https://www.cve.org/CVERecord?id=CVE-2018-6381 |
Change history (0)
No recorded changes yet.