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openSUSE Leap 16.0 zchunk Update Fixes Crafted File Crash

openSUSE Leap 16.0 zchunk Update Fixes Crafted File Crash

Linuxsecurity •LinuxSecurity Advisories • November 10, 2026

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This update for zchunk fixes the following issue:

- CVE-2026-117556: heap out-of-bounds read in `read_preface()` allows attackers to cause an application crash via a

crafted `.zck` file (bsc#1288144).

To install this openSUSE security update use the suse recommended installation methods

like YaST online_update or "zypper patch".

Alternatively you can run the command listed for your product:

zypper in -t patch openSUSE-Leap-16.0-2064=1

- openSUSE Leap 16.0:

libzck-devel-1.5.1-160000.3.1

libzck1-1.5.1-160000.3.1

zchunk-1.5.1-160000.3.1

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Extracted Entities

Attack Types (1)

CWE Weaknesses (1)