zziplib: bus error in zzip_disk_findfirst function in zzip/mmapped.c
Published Feb 2, 2018
6.5
MEDIUMCVSS 3.0
EPSS 2.26%
Description
In ZZIPlib 0.13.67, there is a bus error caused by loading of a misaligned address in the zzip_disk_findfirst function of zzip/mmapped.c. Remote attackers could leverage this vulnerability to cause a denial of service via a crafted zip file.
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
Red Hat Enterprise Linux 8
zziplib
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 7 | zziplib | Will not fix | n/a |
| Red Hat Enterprise Linux 8 | zziplib | Not affected | 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 1, 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 (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.26% (0.02262) | 82.37th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.31% (0.02305) | 81.03th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.39% (0.00388) | 73.47th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.39% (0.00388) | 72.49th | v3 (v2023.03.01) |
| Sep 3, 2023 | 0.39% (0.00388) | 69.86th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.34% (0.00344) | 67.02th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.14% (0.01136) | 59.45th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.14% (0.01136) | 34.23th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.30% (0.01300) | 31.12th | v5 (v2026.06.15) |
| Apr 14, 2021 | 1.30% (0.01300) | 0.00th | v1 |
References (7)
- https://access.redhat.com/security/cve/CVE-2018-6540 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1542261 Issue Tracking
- https://github.com/gdraheim/zziplib/issues/15 x_refsource_MISCExploitThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/06/msg00029.html mailing-listx_refsource_MLIST
- https://nvd.nist.gov/vuln/detail/CVE-2018-6540
- https://usn.ubuntu.com/3699-1/ vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2018-6540
| Link | Providers | Tags |
|---|---|---|
| https://access.redhat.com/security/cve/CVE-2018-6540 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1542261 | Issue Tracking | |
| https://github.com/gdraheim/zziplib/issues/15 | x_refsource_MISCExploitThird Party Advisory | |
| https://lists.debian.org/debian-lts-announce/2020/06/msg00029.html | mailing-listx_refsource_MLIST | |
| https://nvd.nist.gov/vuln/detail/CVE-2018-6540 | ||
| https://usn.ubuntu.com/3699-1/ | vendor-advisoryx_refsource_UBUNTUThird Party Advisory | |
| https://www.cve.org/CVERecord?id=CVE-2018-6540 |
Change history (0)
No recorded changes yet.