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Bug 1527296 - (CVE-2018-5345) CVE-2018-5345 gcab: Extracting malformed .cab files causes stack smashing potentially leading to arbitrary code execution
CVE-2018-5345 gcab: Extracting malformed .cab files causes stack smashing pot...
Status: CLOSED ERRATA
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
high Severity high
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Assigned To: Red Hat Product Security
impact=important,public=20171219,repo...
: Security
Depends On: 1529602 1528141 1533173 1533174
Blocks: 1527298
  Show dependency tree / graph
 
Reported: 2017-12-19 02:02 EST by Sam Fowler
Modified: 2018-03-19 10:29 EDT (History)
8 users (show)

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Fixed In Version: gcab 1.0
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Last Closed: 2018-03-19 10:29:13 EDT
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RHEL 7.3 requirements from Atomic Host:
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External Trackers
Tracker ID Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2018:0350 normal SHIPPED_LIVE Important: gcab security update 2018-02-26 19:10:26 EST

  None (edit)
Description Sam Fowler 2017-12-19 02:02:13 EST 
Versions of gcab <= 7.4 are vulnerable to a stack-based buffer overflow when extracting maliciously constructed .cab files. An attacker could potentially exploit this to execute arbitrary code.

Original bug: 
https://bugzilla.redhat.com/show_bug.cgi?id=1527062
Comment 1 Richard Hughes 2017-12-20 07:03:42 EST 
Upstream would like to make a new release before the holidays, but obviously would like to include the fix with the new tarball. Can we get some guidance on what we should do? Thanks.
Comment 2 Sam Fowler 2017-12-20 23:56:58 EST 
Created gcab tracking bugs for this issue:

Affects: fedora-all [bug 1528141]
Comment 6 Salvatore Bonaccorso 2018-01-12 02:57:56 EST 
Hi Sam Fowler, hi Richard,

Would it be possible to open up the original bug report? This has restricted access and there is no reference to either upstream commit fixing the issue or an upstream bug.

Is this bug about https://git.gnome.org/browse/gcab/commit/?id=c512f6ff0c82a1139b36db2b28f93edc01c74b4b ?

Regards,
Salvatore
Comment 11 errata-xmlrpc 2018-02-26 14:05:28 EST 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2018:0350 https://access.redhat.com/errata/RHSA-2018:0350
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