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CVE-2014-9636

19
FAUCET Score

CVE-2014-9636 describes a denial-of-service vulnerability in unzip 6.0, affecting products from Canonical, Debian, Fedora Project, and Unzip Project. An attacker can trigger an out-of-bounds read or write, leading to a crash, by crafting a malicious zip archive with an extra field advertising STORED compression but having an uncompressed size smaller than the compressed size. This vulnerability has a CVSS score of 5.0 (medium severity) due to its network-based attack vector, low attack complexity, and potential for partial availability impact. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
6.0CPE matchmatch criteria
cpe:2.3:a:unzip_project:unzip:6.0:*:*:*:*:*:*:*
10.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:10.04:*:*:*:lts:*:*:*
12.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*
14.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
14.10CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:14.10:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

AV:N/AC:L/Au:N/C:N/I:N/A:P

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
11.78%
Probability of exploitation in next 30 days
EPSS Percentile
95.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.1178 is in the 95th percentile among its peer group of 23,701 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (35)

microsoftpatch availablevia msrc
Product: unzip-6.0-20.azl3.aarch64.rpm on Azure Linux 3.0 ARMFixed in: 6.0-20
microsoftpatch availablevia msrc
Product: cbl2 unzip 6.0-19 on CBL Mariner 2.0Fixed in: 6.0-19
microsoftpatch availablevia msrc
Product: azl3 unzip 6.0-20 on Azure Linux 3.0Fixed in: 6.0-20
microsoftpatch availablevia msrc
Product: azl3 unzip 6.0-22 on Azure Linux 3.0Fixed in: 6.0-20
microsoftpatch availablevia msrc
Product: 16921-16820Fixed in: 6.0-16
microsoftpatch availablevia msrc
Product: 16845-16823Fixed in: 6.0-19
microsoftpatch availablevia msrc
Product: 16846-17084Fixed in: 6.0-20
microsoftpatch availablevia msrc
Product: 18861-17084Fixed in: 6.0-20
microsoftpatch availablevia msrc
Product: unzip-debuginfo-6.0-19.cm2.aarch64.rpm on CBL Mariner 2.0 ARMFixed in: 6.0-19
microsoftpatch availablevia msrc
Product: unzip-6.0-20.azl3.x86_64.rpm on Azure Linux 3.0 x64Fixed in: 6.0-20
microsoftpatch availablevia msrc
Product: cm1 unzip 6.0-16 on CBL Mariner 1.0Fixed in: 6.0-16
microsoftpatch availablevia msrc
Product: 12849-12138Fixed in: 6.0-16
microsoftpatch availablevia msrc
Product: 12850-12138Fixed in: 6.0-16
microsoftpatch availablevia msrc
Product: 12841-12139Fixed in: 6.0-19
microsoftpatch availablevia msrc
Product: 12842-12139Fixed in: 6.0-19
microsoftpatch availablevia msrc
Product: 12843-12140Fixed in: 6.0-19
microsoftpatch availablevia msrc
Product: 12844-12140Fixed in: 6.0-19
microsoftpatch availablevia msrc
Product: 12845-12356Fixed in: 6.0-20
microsoftpatch availablevia msrc
Product: 12846-12357Fixed in: 6.0-20
microsoftpatch availablevia msrc
Product: 12847-12137Fixed in: 6.0-16
microsoftpatch availablevia msrc
Product: 12848-12137Fixed in: 6.0-16
microsoftpatch availablevia msrc
Product: CBL Mariner 1.0 x64Fixed in: 6.0-16
microsoftpatch availablevia msrc
Product: CBL Mariner 1.0 ARMFixed in: 6.0-16
microsoftpatch availablevia msrc
Product: CBL Mariner 2.0 x64Fixed in: 6.0-19
microsoftpatch availablevia msrc
Product: CBL Mariner 2.0 ARMFixed in: 6.0-19
microsoftpatch availablevia msrc
Product: unzip-6.0-16.cm1.x86_64.rpm on CBL Mariner 1.0 x64Fixed in: 6.0-16
microsoftpatch availablevia msrc
Product: unzip-debuginfo-6.0-16.cm1.x86_64.rpm on CBL Mariner 1.0 x64Fixed in: 6.0-16
microsoftpatch availablevia msrc
Product: unzip-6.0-16.cm1.aarch64.rpm on CBL Mariner 1.0 ARMFixed in: 6.0-16
microsoftpatch availablevia msrc
Product: unzip-debuginfo-6.0-16.cm1.aarch64.rpm on CBL Mariner 1.0 ARMFixed in: 6.0-16
microsoftpatch availablevia msrc
Product: unzip-6.0-19.cm2.x86_64.rpm on CBL Mariner 2.0 x64Fixed in: 6.0-19
microsoftpatch availablevia msrc
Product: unzip-debuginfo-6.0-19.cm2.x86_64.rpm on CBL Mariner 2.0 x64Fixed in: 6.0-19
microsoftpatch availablevia msrc
Product: unzip-6.0-19.cm2.aarch64.rpm on CBL Mariner 2.0 ARMFixed in: 6.0-19
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: unzip-0:6.0-2.el6_6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: unzip-0:6.0-15.el7
View patch
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: unzip

Vendor Advisories (4)

microsoft2024-Jun/CVE-2014-9636

CVE-2014-9636

Jun 11, 2024
microsoft2020-Aug/CVE-2014-9636

CVE-2014-9636

Aug 11, 2020
microsoft2015-Feb/CVE-2014-9636Moderate

unzip 6.0 allows remote attackers to cause a 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.

Feb 2, 2015
redhatCVE-2014-9636Moderate

unzip: out-of-bounds read/write in test_compr_eb() in extract.c

Nov 2, 2014

References

lists.fedoraproject.org / pipermail/package-announce/2015-January/148792.html
lists.fedoraproject.org / pipermail/package-announce/2015-January/148849.html
seclists.org / oss-sec/2014/q4/1131
seclists.org / oss-sec/2014/q4/489
seclists.org / oss-sec/2014/q4/496
seclists.org / oss-sec/2015/q1/216
secunia.com / advisories/62738
secunia.com / advisories/62751
security.gentoo.org / glsa/201611-01
debian.org / security/2015/dsa-3152
info-zip.org / phpBB3/viewtopic.php
PatchVendor Advisory
oracle.com / technetwork/topics/security/bulletinapr2015-2511959.html
securityfocus.com / bid/71825
ubuntu.com / usn/USN-2489-1