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CVE-2018-6541

22
FAUCET Score

CVE-2018-6541 describes a bus error vulnerability in ZZIPlib version 0.13.67, specifically within the __zzip_fetch_disk_trailer function, which can be triggered by a crafted zip file. This flaw, affecting products like Canonical Ubuntu Linux and gdraheim zziplib, allows remote attackers to cause a denial of service. With a CVSS score of 6.5 (MEDIUM), it has a network attack vector and low attack complexity, requiring user interaction but leading to high availability impact. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
0.13.67CPE matchmatch criteria
cpe:2.3:a:gdraheim:zziplib:0.13.67:*:*:*:*:*:*:*
14.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
16.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
17.10CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:*
18.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.5MEDIUM

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
2.26%
Probability of exploitation in next 30 days
EPSS Percentile
81.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0226 is in the 91st percentile among its peer group of 26,219 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: zziplib-0:0.13.62-11.el7
View patch

Vendor Advisories (1)

redhatCVE-2018-6541Low

zziplib: Bus error caused by loading of a misaligned address inzzip/zip.c

Feb 1, 2018

References

access.redhat.com / errata/RHSA-2019:2196
github.com / gdraheim/zziplib/issues/16
ExploitThird Party Advisory
lists.debian.org / debian-lts-announce/2020/06/msg00029.html
usn.ubuntu.com / 3699-1
Third Party Advisory