Bug 1640723 (CVE-2018-18385) - CVE-2018-18385 rubygem-asciidoctor: Infinite loop in the #next_block method
Summary: CVE-2018-18385 rubygem-asciidoctor: Infinite loop in the #next_block method
Keywords:
Status: CLOSED WONTFIX
Alias: CVE-2018-18385
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1640728 1640727
Blocks: 1640729
TreeView+ depends on / blocked
 
Reported: 2018-10-18 15:12 UTC by Andrej Nemec
Modified: 2021-02-16 22:54 UTC (History)
10 users (show)

Fixed In Version: rubygem-asciidoctor 1.5.8
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Last Closed: 2019-06-10 10:40:44 UTC
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Description Andrej Nemec 2018-10-18 15:12:23 UTC 
Asciidoctor allows remote attackers to cause a denial of service (infinite loop), as demonstrated by web applications that deliver untrusted input to this product, because Parser#next_block misuses a "while true" statement.

Upstream issue:

https://github.com/asciidoctor/asciidoctor/issues/2888
Comment 1 Andrej Nemec 2018-10-18 15:13:57 UTC 
Created rubygem-asciidoctor tracking bugs for this issue:

Affects: epel-7 [bug 1640728]
Affects: fedora-all [bug 1640727]
Comment 2 Doran Moppert 2018-10-22 02:25:59 UTC 
Statement:

The version of rubygem-asciidoctor included in Red Hat Virtualization is affected by this flaw, however it is not exposed to user input in such a way that the vulnerability could be exploited by an attacker.
Comment 3 Dan Allen 2018-10-22 07:02:28 UTC 
A fix is now available upstream. The fix is in master at the time of this comment and will be included in the upcoming 1.5.8 release.
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