CVE-2018-1056

Severity: high (CVSS 7.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.4% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2018-07-27 · updated 2026-06-17
Weakness: CWE-122

Description

An out-of-bounds heap buffer read flaw was found in the way advancecomp before 2.1-2018/02 handled processing of ZIP files. An attacker could potentially use this flaw to crash the advzip utility by tricking it into processing crafted ZIP files.

Affected products

advancecomp: before 2.1 — fixed in 2.1
Canonical Ubuntu Linux: 14.04, 16.04, 17.10
Debian Linux: 7.0, 8.0, 9.0

How to fix

Upgrade to a fixed version: advancecomp 2.1. Check the vendor advisory for mitigations.

References

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=889270
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-1056
https://lists.debian.org/debian-lts-announce/2018/02/msg00016.html
https://lists.debian.org/debian-lts-announce/2019/03/msg00004.html
https://lists.debian.org/debian-lts-announce/2021/12/msg00034.html
https://sourceforge.net/p/advancemame/bugs/259/
https://usn.ubuntu.com/3570-1/
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=889270
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-1056
https://lists.debian.org/debian-lts-announce/2018/02/msg00016.html
https://lists.debian.org/debian-lts-announce/2019/03/msg00004.html
https://lists.debian.org/debian-lts-announce/2021/12/msg00034.html

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