CVE-2018-1000035
A heap-based buffer overflow exists in Info-Zip UnZip version <= 6.00 in the processing of...
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.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
7.8
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.
- Record
CVE-2018-1000035- CVSS 3.0
- 7.8 High
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - CVSS 2.0
- 6.8 Medium
AV:N/AC:M/Au:N/C:P/I:P/A:P - Weakness
- CWE-787
- Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2018-1000035- Updated
- 2026-11-02
EUVDEUVD-2018-1796 No score
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.
- Record
EUVD-2018-1796- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-v5xf-cfj4-rv57
7.8
A heap-based buffer overflow exists in Info-Zip UnZip version <= 6.00 in the processing of...
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.
- Record
GHSA-v5xf-cfj4-rv57- CVSS 3.0
- 7.8 High
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Weakness
- CWE-787
- Updated
- 2026-11-02
OSVALPINE-CVE-2018-1000035
7.8
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.
- Record
ALPINE-CVE-2018-1000035- CVSS 3.0
- 7.8 High
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVAZL-35339
7.8
CVE-2018-1000035 affecting package unzip for versions less than 6.0-20
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.
- Record
AZL-35339- CVSS 3.0
- 7.8 High
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
Show 11 moreShow less
OSVAZL-6941
7.8
CVE-2018-1000035 affecting package unzip for versions less than 6.0-19
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.
- Record
AZL-6941- CVSS 3.0
- 7.8 High
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVBELL-CVE-2018-1000035
7.8
CVE-2018-1000035 does not affect BellSoft software
- Record
BELL-CVE-2018-1000035- CVSS 3.0
- 7.8 High
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSV
7.8
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.
- Record
CVE-2018-1000035- CVSS 3.0
- 7.8 High
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVDEBIAN-CVE-2018-1000035
7.8
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.
- Record
DEBIAN-CVE-2018-1000035- CVSS 3.0
- 7.8 High
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVUBUNTU-CVE-2018-1000035
7.8
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.
- Record
UBUNTU-CVE-2018-1000035- CVSS 3.0
- 7.8 High
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVMGASA-2018-0422 No score
Updated unzip packages fix security vulnerabilities
Updated unzip packages fix security vulnerabilities
Heap-based out-of-bounds write (CVE-2018-1000031).
Heap/BSS-based buffer overflow (Bypass of CVE-2015-1315) (CVE-2018-1000032).
Heap out-of-bounds access in ef_scan_for_stream (CVE-2018-1000033).
Multiple vulnerabilities in the LZMA compression algorithm (CVE-2018-1000034).
Heap-based buffer overflow in password protected ZIP archives (CVE-2018-1000035).
- Record
MGASA-2018-0422- Updated
- 2026-11-02
OSVopenSUSE-SU-2024:11485-1 No score
unzip-6.00-39.1 on GA media
These are all security issues fixed in the unzip-6.00-39.1 package on the GA media of openSUSE Tumbleweed.
- Record
openSUSE-SU-2024:11485-1- Updated
- 2026-11-02
OSVSUSE-SU-2018:0465-1 No score
Security update for unzip
This update for unzip fixes the following issues:
- CVE-2018-1000035: Fixed a heap-based buffer overflow in password protected ZIP archives (bsc#1080074)
- Record
SUSE-SU-2018:0465-1- Updated
- 2026-11-02
OSVSUSE-SU-2018:1883-1 No score
Security update for unzip
This update for unzip fixes the following issues:
- CVE-2014-9636: Prevent denial of service (out-of-bounds read or write and crash) via an extra field with an uncompressed size smaller than the compressed field size in a zip archive that advertises STORED method compression (bsc#914442)
- CVE-2018-1000035: Prevent heap-based buffer overflow in the processing of password-protected archives that allowed an attacker to perform a denial of service or to possibly achieve code execution (bsc#1080074)
This non-security issue was fixed:
+- Allow processing of Windows zip64 archives (Windows archivers set total_disks field to 0 but per standard, valid values are 1 and higher) (bnc#910683)
- Record
SUSE-SU-2018:1883-1- Updated
- 2026-11-02
OSVSUSE-SU-2018:2978-1 No score
Security update for unzip
This update for unzip fixes the following security issues:
- CVE-2014-9913: Specially crafted zip files could trigger invalid memory writes possibly resulting in DoS or corruption (bsc#1013993)
- CVE-2015-7696: Specially crafted zip files with password protection could trigger a crash and lead to denial of service (bsc#950110)
- CVE-2015-7697: Specially crafted zip files could trigger an endless loop and lead to denial of service (bsc#950111)
- CVE-2016-9844: Specially crafted zip files could trigger invalid memory writes possibly resulting in DoS or corruption (bsc#1013992)
- CVE-2018-1000035: Prevent heap-based buffer overflow in the processing of password-protected archives that allowed an attacker to perform a denial of service or to possibly achieve code execution (bsc#1080074).
- CVE-2014-9636: Prevent denial of service (out-of-bounds read or write and crash) via an extra field with an uncompressed size smaller than the compressed field size in a zip archive that advertises STORED method compression (bsc#914442).
This non-security issue was fixed:
+- Allow processing of Windows zip64 archives (Windows archivers set total_disks field to 0 but per standard, valid values are 1 and higher) (bnc#910683)
- Record
SUSE-SU-2018:2978-1- Updated
- 2026-11-02
OSVUSN-4672-1 No score
unzip vulnerabilities
Rene Freingruber discovered that unzip incorrectly handled certain specially crafted password protected ZIP archives. If a user or automated system using unzip were tricked into opening a specially crafted zip file, an attacker could exploit this to cause a crash, resulting in a denial of service. (CVE-2018-1000035)
Antonio Carista discovered that unzip incorrectly handled certain specially crafted ZIP archives. If a user or automated system using unzip were tricked into opening a specially crafted zip file, an attacker could exploit this to cause a crash, resulting in a denial of service. This issue only affected Ubuntu 12.04 ESM and Ubuntu 14.04 ESM. (CVE-2018-18384)
It was discovered that unzip incorrectly handled certain specially crafted ZIP archives. If a user or automated system using unzip were tricked into opening a specially crafted zip file, an attacker could exploit this to cause resource consumption, resulting in a denial of service. (CVE-2019-13232)
Martin Carpenter discovered that unzip incorrectly handled certain specially crafted ZIP archives. If a user or automated system using unzip were tricked into opening a specially crafted zip file, an attacker could exploit this to cause a crash, resulting in a denial of service. This issue only affected Ubuntu 12.04 ESM, Ubuntu 14.04 ESM and Ubuntu 16.04 LTS. (CVE-2014-9913)
Alexis Vanden Eijnde discovered that unzip incorrectly handled certain specially crafted ZIP archives. If a user or automated system using unzip were tricked into opening a specially crafted zip file, an attacker could exploit this to cause a crash, resulting in a denial of service. This issue only affected Ubuntu 12.04 ESM, Ubuntu 14.04 ESM and Ubuntu 16.04 LTS. (CVE-2016-9844)
- Record
USN-4672-1- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
unzipAlpine:v3.10 |
before 6.0-r3 | 6.0-r3 |
unzipAlpine:v3.11 |
before 6.0-r3 | 6.0-r3 |
unzipAlpine:v3.12 |
before 6.0-r3 | 6.0-r3 |
unzipAlpine:v3.13 |
before 6.0-r3 | 6.0-r3 |
unzipAlpine:v3.14 |
before 6.0-r3 | 6.0-r3 |
unzipAlpine:v3.15 |
before 6.0-r3 | 6.0-r3 |
unzipAlpine:v3.16 |
before 6.0-r3 | 6.0-r3 |
unzipAlpine:v3.17 |
before 6.0-r3 | 6.0-r3 |
unzipAlpine:v3.18 |
before 6.0-r3 | 6.0-r3 |
unzipAlpine:v3.19 |
before 6.0-r3 | 6.0-r3 |
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| Package | Affected | Fixed |
|---|---|---|
unzipAlpine:v3.20 |
before 6.0-r3 | 6.0-r3 |
unzipAlpine:v3.21 |
before 6.0-r3 | 6.0-r3 |
unzipAlpine:v3.22 |
before 6.0-r3 | 6.0-r3 |
unzipAlpine:v3.23 |
before 6.0-r3 | 6.0-r3 |
unzipAlpine:v3.24 |
before 6.0-r3 | 6.0-r3 |
unzipAlpine:v3.5 |
before 6.0-r3 | 6.0-r3 |
unzipAlpine:v3.6 |
before 6.0-r3 | 6.0-r3 |
unzipAlpine:v3.7 |
before 6.0-r3 | 6.0-r3 |
unzipAlpine:v3.8 |
before 6.0-r3 | 6.0-r3 |
unzipAlpine:v3.9 |
before 6.0-r3 | 6.0-r3 |
unzipAzure Linux:3 |
before 6.0-20 | 6.0-20 |
unzipAzure Linux:2 |
before 6.0-19 | 6.0-19 |
unzipDebian:12 |
before 6.0-22 | 6.0-22 |
unzipDebian:13 |
before 6.0-22 | 6.0-22 |
unzipDebian:14 |
before 6.0-22 | 6.0-22 |
unzipDebian:8 |
before 6.0-16+deb8u6, plus listed versions 6.0-166.0-16+deb8u16.0-16+deb8u26.0-16+deb8u36.0-16+deb8u46.0-16+deb8u5 |
6.0-16+deb8u6 |
unzipMageia:6 |
before 6.1c-1.1.mga6 | 6.1c-1.1.mga6 |
unzipSUSE:Linux Enterprise Server 11 SP4 |
before 6.00-11.18.3.1 | 6.00-11.18.3.1 |
unzipSUSE:Linux Enterprise Server for SAP Applications 11 SP4 |
before 6.00-11.18.3.1 | 6.00-11.18.3.1 |
unzipSUSE:Linux Enterprise Module for Basesystem 15 |
before 6.00-4.3.1 | 6.00-4.3.1 |
unzipSUSE:Linux Enterprise Desktop 12 SP3 |
before 6.00-33.8.1 | 6.00-33.8.1 |
unzipSUSE:Linux Enterprise Server 12 SP3 |
before 6.00-33.8.1 | 6.00-33.8.1 |
unzipSUSE:Linux Enterprise Server for SAP Applications 12 SP3 |
before 6.00-33.8.1 | 6.00-33.8.1 |
unzipUbuntu:Pro:14.04:LTS |
before 6.0-9ubuntu1.6, plus listed versions 6.0-9ubuntu16.0-9ubuntu1.16.0-9ubuntu1.26.0-9ubuntu1.36.0-9ubuntu1.46.0-9ubuntu1.5 |
6.0-9ubuntu1.6 |
unzipUbuntu:16.04:LTS |
before 6.0-20ubuntu1.1, plus listed versions 6.0-17ubuntu16.0-19ubuntu16.0-19ubuntu26.0-20ubuntu1 |
6.0-20ubuntu1.1 |
unzipUbuntu:18.04:LTS |
before 6.0-21ubuntu1.1, plus listed versions 6.0-21ubuntu1 |
6.0-21ubuntu1.1 |
unzipopenSUSE:Tumbleweed |
before 6.00-39.1 | 6.00-39.1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2018-1000035 is a high vulnerability (CVSS 7.8) in Unzip Project Unzip, published February 9, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 30.1%, the 98th percentile. Fixed in unzip 6.0-r3.
References
sec-consult.com/en/blog/advisories/multiple-vulnerabilities-in-infozip-unzip/index.html
lists.debian.org/debian-lts-announce/2020/01/msg00026.html
security.gentoo.org/glsa/202003-58
nvd.nist.gov/vuln/detail/CVE-2018-1000035
github.com/advisories/GHSA-v5xf-cfj4-rv57
security.alpinelinux.org/vuln/CVE-2018-1000035
Show 30 moreShow less
docs.bell-sw.com/security/cves/CVE-2018-1000035
security-tracker.debian.org/tracker/CVE-2018-1000035
advisories.mageia.org/MGASA-2018-0422.html
bugs.mageia.org/show_bug.cgi?id=22571
openwall.com/lists/oss-security/2018/02/08/1
suse.com/support/update/announcement/2018/suse-su-20180465-1
bugzilla.suse.com/1080074
suse.com/security/cve/CVE-2018-1000035
suse.com/support/update/announcement/2018/suse-su-20181883-1
bugzilla.suse.com/910683
bugzilla.suse.com/914442
suse.com/security/cve/CVE-2014-9636
suse.com/support/update/announcement/2018/suse-su-20182978-1
bugzilla.suse.com/1013992
bugzilla.suse.com/1013993
bugzilla.suse.com/950110
bugzilla.suse.com/950111
suse.com/security/cve/CVE-2014-9913
suse.com/security/cve/CVE-2015-7696
suse.com/security/cve/CVE-2015-7697
suse.com/security/cve/CVE-2016-9844
ubuntu.com/security/CVE-2018-1000035
ubuntu.com/security/notices/USN-4672-1
cve.org/CVERecord?id=CVE-2018-1000035
ubuntu.com/security/CVE-2014-9913
ubuntu.com/security/CVE-2016-9844
ubuntu.com/security/CVE-2018-18384
ubuntu.com/security/CVE-2019-13232
suse.com/security/cve/CVE-2005-2475
suse.com/security/cve/CVE-2018-18384