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Fencer Intel
high 7.8

CVE-2018-1000035 in the critical feed json

A heap-based buffer overflow exists in Info-Zip UnZip version <= 6.00 in the processing of password-protected archives that allows an attac…

published 8y ago modified 4mo ago also EUVD-2018-1796

cvss
7.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
30.1%
EPSS 30.1% chance of exploitation in 30 days, percentile 98%
public exploits
0
none known

Summary

A heap-based buffer overflow exists in Info-Zip UnZip version <= 6.00 in the processing of password-protected archives that allows an attacker to perform a denial of service or to possibly achieve code execution.

Patch / fix

  • unzip Debian 14, Debian 13, Debian 12 6.0-22

debian advisories DEBIAN-CVE-2018-1000035

  • unzip Ubuntu 16.04 LTS 6.0-20ubuntu1.1
  • unzip Ubuntu 18.04 LTS 6.0-21ubuntu1.1
  • unzip Ubuntu Pro 14.04 LTS 6.0-9ubuntu1.6

ubuntu advisories UBUNTU-CVE-2018-1000035

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • unzip SLES for SAP 12 SP3, SLES 12 SP3, SLED 12 SP3 6.00-33.8.1
  • unzip SLE Module for Basesystem 15 6.00-4.3.1
  • unzip SLES for SAP 11 SP4, SLES 11 SP4 6.00-11.18.3.1

suse advisories SUSE-SU-2018:2978-1SUSE-SU-2018:1883-1SUSE-SU-2018:0465-1

  • unzip openSUSE Tumbleweed 6.00-39.1

opensuse advisories openSUSE-SU-2024:11485-1

  • unzip Alpine 3.24, Alpine 3.23, Alpine 3.22 +17 more 6.0-r3

alpine advisories ALPINE-CVE-2018-1000035

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • unzip Azure Linux 3.0 6.0-20
  • unzip CBL-Mariner 2.0 6.0-19

azure linux advisories AZL-35339AZL-6941

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

  • unzip Arch Linux 6.0-15

arch linux advisories AVG-611

Is CVE-2018-1000035 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2018-1000035 updated cvss 7.0

unzip: Heap-based buffer overflow in fileio.c:UzpPassword function allows code execution

  • Red Hat Enterprise Linux 5 unzip Red Hat Enterprise Linux 6 unzip Red Hat Enterprise Linux 7 unzip
    affected: no fix planned “Will not fix”
  • Red Hat Enterprise Linux 8 unzip
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

30.07% chance of exploitation in the next 30 days, higher than 98% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.0 7.8 CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD 2.0 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P

Classification

Weakness

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.