Buffer overflow in Unzip_project Unzip

CVE-2016-9844

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.

Vulnerability class: Buffer Overflow

EPSS: 0.098 (93.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.0 (Medium). Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

  • cve@mitre.org (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
  • cve@mitre.org (x_refsource_CONFIRM, Issue Tracking)
  • cve@mitre.org (mailing-list, x_refsource_MLIST, Mailing List, Third Party Advisory)
  • cve@mitre.org (mailing-list, x_refsource_MLIST, Mailing List, Third Party Advisory)
  • cve@mitre.org (mailing-list, x_refsource_MLIST, Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2016-9844?
CVE-2016-9844 is a medium-severity vulnerability in Unzip_project Unzip, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 4.0/10. Published 2017-01-18.
How severe is CVE-2016-9844?
Medium severity. CVSS v3 base score is 4.0 out of 10.
Is CVE-2016-9844 known to be exploited?
3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.