CVE-2018-6540

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.

CVSS v3 6.5 MEDIUM
CVSS v2.0 4.3 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

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

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

4.3^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:M/Au:N/C:N/I:N/A:P

Exploitability : 8.6 / Impact : 2.9

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
https://github.com/gdraheim/zziplib/issues/15	Exploit Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/06/msg00029.html
https://usn.ubuntu.com/3699-1/	Third Party Advisory
https://github.com/gdraheim/zziplib/issues/15	Exploit Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/06/msg00029.html
https://usn.ubuntu.com/3699-1/	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:gdraheim:zziplib:0.13.67:*:*:*:*:*:*:*

Configuration 2 (hide)

OR	cpe:2.3:o:canonical:ubuntu_linux:14.04::::lts:::
	cpe:2.3:o:canonical:ubuntu_linux:16.04::::lts:::
	cpe:2.3:o:canonical:ubuntu_linux:17.10:::::::*
	cpe:2.3:o:canonical:ubuntu_linux:18.04::::lts:::

History

10 Jul 2025, 15:44

Type	Values Removed	Values Added
CPE	cpe:2.3:a:zziplib_project:zziplib:0.13.67:::::::*	cpe:2.3:a:gdraheim:zziplib:0.13.67:::::::*
First Time		Gdraheim Gdraheim zziplib

Information

Published : 2018-02-02 09:29

Updated : 2025-07-10 15:44

NVD link : CVE-2018-6540

Mitre link : CVE-2018-6540

CVE.ORG link : CVE-2018-6540

JSON object : View

Products Affected

canonical

ubuntu_linux

gdraheim

zziplib

CWE

NVD-CWE-noinfo

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