NULL Pointer Dereference Affecting zziplib package, versions <0.13.62-3.1


Severity

Recommended
0.0
medium
0
10

Snyk's Security Team recommends NVD's CVSS assessment. Learn more

Threat Intelligence

EPSS
1.62% (73rd percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-ECHOLATEST-ZZIPLIB-18022591
  • published20 Jul 2026
  • disclosed1 Mar 2017

Introduced: 1 Mar 2017

CVE-2017-5979  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

Upgrade Echo:latest zziplib to version 0.13.62-3.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream zziplib package and not the zziplib package as distributed by Echo. See How to fix? for Echo:latest relevant fixed versions and status.

The prescan_entry function in fseeko.c in zziplib 0.13.62 allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via a crafted ZIP file.