CVE-2017-12858 : Double free vulnerability in the _zip_dirent_read function in zip

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

Published 2017-08-23 14:29:00

Updated 2022-05-25 14:44:02

Source MITRE

View at NVD, CVE.org

Vulnerability category: Memory Corruption

Products affected by CVE-2017-12858

Libzip » Libzip » Version: 1.2.0
cpe:2.3:a:libzip:libzip:1.2.0:*:*:*:*:*:*:*
Matching versions

EPSS FAQ

0.23%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 60 %

Percentile, the proportion of vulnerabilities that are scored at or less

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
7.5	HIGH	AV:N/AC:L/Au:N/C:P/I:P/A:P	10.0	6.4	NIST
Access Vector: Network Access Complexity: Low Authentication: None Confidentiality Impact: Partial Integrity Impact: Partial Availability Impact: Partial
9.8	CRITICAL	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	3.9	5.9	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: High Integrity: High Availability: High

CWE-415 Double Free

The product calls free() twice on the same memory address, potentially leading to modification of unexpected memory locations.

Assigned by: nvd@nist.gov (Primary)

http://www.securityfocus.com/bid/100459

libzip CVE-2017-12858 Double Free Local Denial of Service Vulnerability
Third Party Advisory;VDB Entry
https://github.com/nih-at/libzip/commit/2217022b7d1142738656d891e00b3d2d9179b796

Fix double free(). · nih-at/libzip@2217022 · GitHub
Patch;Third Party Advisory

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