CVE-2018-6540 — MEDIUM (6.5)

Vulnerability 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.

CVSS Score

6.5

MEDIUM

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

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Gdraheim	Zziplib	0.13.67
Canonical	Ubuntu Linux	14.04

References

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

FAQ

What is CVE-2018-6540?

CVE-2018-6540 is a vulnerability with a CVSS score of 6.5 (MEDIUM). 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 ...

How severe is CVE-2018-6540?

CVE-2018-6540 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2018-6540?

Check the references section above for vendor advisories and patch information. Affected products include: Gdraheim Zziplib, Canonical Ubuntu Linux.