CVE-2018-6540

medium

Published — · Modified —

CVSS v3

—

CVSS v2

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VIR risk

5.5

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.

Predictions

Exploit likelihood

20%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2018-6540

vendor Authored 2026-05-27

Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2018-6540.html

OS impact

OS	Version	Status	Fixed in
arch		fixed	`0.13.68-1`
sles		affected
debian	bookworm	fixed	`0.13.62-3.2`
debian	bullseye	fixed	`0.13.62-3.2`
debian	forky	fixed	`0.13.62-3.2`
debian	sid	fixed	`0.13.62-3.2`
debian	trixie	fixed	`0.13.62-3.2`

References

https://www.suse.com/security/cve/CVE-2018-6540.html
https://security-tracker.debian.org/tracker/CVE-2018-6540

Verify integrity in audit chain (admin only). AS-IS.