Double Free in Libzip

CVE-2017-12858

Double free vulnerability in the _zip_dirent_read function in zip_dirent.c in libzip allows attackers to have unspecified impact via unknown vectors.

Vulnerability class: Double Free

EPSS: 0.033 (87.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Libzip — versions 1.2.0
N/a — versions n/a

Weakness classification (CWE)

CWE-415 — Double Free

Public proof-of-concept exploits

References

cve@mitre.org (x_refsource_CONFIRM, Patch, Third Party Advisory)
cve@mitre.org (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)

Frequently asked questions

What is CVE-2017-12858?: CVE-2017-12858 is a critical-severity vulnerability in Libzip, classified under Double Free. CVSS score: 9.8/10. Published 2017-08-23.
How severe is CVE-2017-12858?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2017-12858 known to be exploited?: 5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.