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Bug 1542257 - (CVE-2018-6542) CVE-2018-6542 zziplib: bus error in zzip_disk_findfirst function in zzip/mmapped.c
CVE-2018-6542 zziplib: bus error in zzip_disk_findfirst function in zzip/mma...
Status: CLOSED NOTABUG
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
low Severity low
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Assigned To: Red Hat Product Security
impact=low,public=20180202,reported=2...
: Security
Depends On: 1542259
Blocks: 1542260
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Reported: 2018-02-05 18:22 EST by Laura Pardo
Modified: 2018-02-23 09:44 EST (History)
3 users (show)

See Also:
Fixed In Version: zziplib 0.13.68
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Doc Text:
An unaligned memory access bug was found in the way ZZIPlib handled ZIP files. This flaw could potentially be used to crash the application using ZZIPlib by tricking the application into processing specially crafted ZIP files.
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Last Closed: 2018-02-23 05:32:40 EST
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CRM:
Verified Versions:
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RHEL 7.3 requirements from Atomic Host:
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Description Laura Pardo 2018-02-05 18:22:56 EST 
A flaw was found in ZZIPlib 0.13.67, there is a bus error (when handling a disk64_trailer seek value) caused by loading of a misaligned address in the zzip_disk_findfirst function of zzip/mmapped.c. 

References: 
https://github.com/gdraheim/zziplib/issues/17

Patch:
https://github.com/gdraheim/zziplib/commit/931f962ddfec0e00d6f486df2c56d9857b55944e
Comment 1 Laura Pardo 2018-02-05 18:23:25 EST 
Created zziplib tracking bugs for this issue:

Affects: fedora-all [bug 1542259]
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