CVE-2018-1000033
An out-of-bounds read exists in Info-Zip UnZip version 6.10c22 that allows an attacker to perform...
An out-of-bounds read exists in Info-Zip UnZip version 6.10c22 that allows an attacker to perform a denial of service and read sensitive memory.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
An out-of-bounds read exists in Info-Zip UnZip version 6.10c22 that allows an attacker to perform a denial of service and read sensitive memory.
- Record
CVE-2018-1000033- CVSS 3.0
- 9.1 Critical
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H - CVSS 2.0
- 6.4 Medium
AV:N/AC:L/Au:N/C:P/I:N/A:P - Weakness
- CWE-125
- Updated
- 2026-11-02
CVE List No score
An out-of-bounds read exists in Info-Zip UnZip version 6.10c22 that allows an attacker to perform a denial of service and read sensitive memory.
- Record
CVE-2018-1000033- Updated
- 2026-11-02
EUVDEUVD-2018-1794 No score
An out-of-bounds read exists in Info-Zip UnZip version 6.10c22 that allows an attacker to perform a denial of service and read sensitive memory.
- Record
EUVD-2018-1794- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-9p89-vww3-h8hf
An out-of-bounds read exists in Info-Zip UnZip version 6.10c22 that allows an attacker to perform...
An out-of-bounds read exists in Info-Zip UnZip version 6.10c22 that allows an attacker to perform a denial of service and read sensitive memory.
- Record
GHSA-9p89-vww3-h8hf- CVSS 3.0
- 9.1 Critical
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H - Weakness
- CWE-125
- 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
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
unzipMageia:6 From an advisory covering 5 CVEs |
before 6.1c-1.1.mga6 | 6.1c-1.1.mga6 |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, facts | ||
| 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-2018-1000033 is a critical vulnerability (CVSS 9.1) in Info-zip Unzip, published February 9, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.73%, the 77th percentile. No source names a fixed version.
References
sec-consult.com/en/blog/advisories/multiple-vulnerabilities-in-infozip-unzip/index.html
securityfocus.com/bid/103031
nvd.nist.gov/vuln/detail/CVE-2018-1000033
github.com/advisories/GHSA-9p89-vww3-h8hf
advisories.mageia.org/MGASA-2018-0422.html
bugs.mageia.org/show_bug.cgi?id=22571
openwall.com/lists/oss-security/2018/02/08/1