MEDIUM
unzip: methbuf[] buffer overflow in zipinfo's zi_short()
Published Jan 18, 2017
4.0
MEDIUMCVSS 3.0
EPSS 1.84%
Description
Buffer overflow in the zi_short function in zipinfo.c in Info-Zip UnZip 6.0 allows remote attackers to cause a denial of service (crash) via a large compression method value in the central directory file header.
Affected products
No data.
- 6.0
No data.
Red Hat Enterprise Linux 5
unzip
Will not fix
Red Hat Enterprise Linux 6
unzip
Will not fix
Red Hat Enterprise Linux 7
unzip
Will not fix
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | unzip | Will not fix | n/a |
| Red Hat Enterprise Linux 6 | unzip | Will not fix | n/a |
| Red Hat Enterprise Linux 7 | unzip | Will not fix | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
4.0 MEDIUM NVD
CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Attack Vector Local
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact None
Integrity Impact None
Availability Impact Low
1 other source (Red Hat) ▾
3.3 LOW Red Hat
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
Attack Vector Local
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Unchanged
Confidentiality Impact None
Integrity Impact None
Availability Impact Low
2.1 LOW NVD
AV:L/AC:L/Au:N/C:N/I:N/A:P
Access Vector Local
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
1.84% 0.01835
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.01835
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (20 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.84% (0.01835) | 78.15th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.84% (0.01835) | 76.08th | v5 (v2026.06.15) |
| Aug 30, 2025 | 8.94% (0.08935) | 92.25th | v4 (v2025.03.14) |
| Jun 19, 2025 | 10.18% (0.10185) | 92.74th | v4 (v2025.03.14) |
| May 6, 2025 | 11.30% (0.11302) | 93.12th | v4 (v2025.03.14) |
| Mar 30, 2025 | 13.10% (0.13096) | 93.49th | v4 (v2025.03.14) |
| Mar 29, 2025 | 20.34% (0.20339) | 92.72th | v4 (v2025.03.14) |
| Mar 28, 2025 | 13.10% (0.13096) | 93.49th | v4 (v2025.03.14) |
| Mar 27, 2025 | 20.34% (0.20339) | 94.73th | v4 (v2025.03.14) |
| Mar 26, 2025 | 13.10% (0.13096) | 93.41th | v4 (v2025.03.14) |
| Mar 25, 2025 | 20.34% (0.20339) | 95.01th | v4 (v2025.03.14) |
| Mar 17, 2025 | 13.10% (0.13096) | 93.56th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.70% (0.00699) | 80.93th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.70% (0.00699) | 79.64th | v3 (v2023.03.01) |
| Jun 5, 2023 | 0.70% (0.00699) | 77.46th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.48% (0.00476) | 71.96th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.21% (0.01213) | 66.61th | v2 (v2022.01.01) |
| Feb 17, 2023 | 1.21% (0.01213) | 66.22th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.21% (0.01213) | 64.21th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.21% (0.01213) | 40.54th | v2 (v2022.01.01) |
Weaknesses (2)
References (9)
- http://www.openwall.com/lists/oss-security/2016/12/05/13 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- http://www.openwall.com/lists/oss-security/2016/12/05/19 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- http://www.openwall.com/lists/oss-security/2016/12/05/20 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- http://www.securityfocus.com/bid/94728 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://access.redhat.com/security/cve/CVE-2016-9844 Vendor Advisory
- https://bugs.launchpad.net/ubuntu/+source/unzip/+bug/1643750 x_refsource_CONFIRMIssue Tracking
- https://bugzilla.redhat.com/show_bug.cgi?id=1401864 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2016-9844
- https://www.cve.org/CVERecord?id=CVE-2016-9844
| Link | Providers | Tags |
|---|---|---|
| http://www.openwall.com/lists/oss-security/2016/12/05/13 | mailing-listx_refsource_MLISTMailing ListThird Party Advisory | |
| http://www.openwall.com/lists/oss-security/2016/12/05/19 | mailing-listx_refsource_MLISTMailing ListThird Party Advisory | |
| http://www.openwall.com/lists/oss-security/2016/12/05/20 | mailing-listx_refsource_MLISTMailing ListThird Party Advisory | |
| http://www.securityfocus.com/bid/94728 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| https://access.redhat.com/security/cve/CVE-2016-9844 | Vendor Advisory | |
| https://bugs.launchpad.net/ubuntu/+source/unzip/+bug/1643750 | x_refsource_CONFIRMIssue Tracking | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1401864 | Issue Tracking | |
| https://nvd.nist.gov/vuln/detail/CVE-2016-9844 | ||
| https://www.cve.org/CVERecord?id=CVE-2016-9844 |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Jan 18, 2017
Updated Aug 6, 2024
Reserved Dec 5, 2016
Link CVE-2016-9844
CISA Vulnrichment
Updated n/a