Vulnerability Details CVE-2018-18385
Asciidoctor in versions < 1.5.8 allows remote attackers to cause a denial of service (infinite loop). The loop was caused by the fact that Parser.next_block was not exhausting all the lines in the reader as the while loop expected it would. This was happening because the regular expression that detects any list was not agreeing with the regular expression that detects a specific list type. So the line kept getting pushed back onto the reader, hence causing the loop.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.007
EPSS Ranking 71.1%
CVSS Severity
CVSS v3 Score 7.5
CVSS v2 Score 5.0
References
Products affected by CVE-2018-18385
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cpe:2.3:a:asciidoctor:asciidoctor:0.0.1
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cpe:2.3:a:asciidoctor:asciidoctor:0.0.2
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cpe:2.3:a:asciidoctor:asciidoctor:0.0.3
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cpe:2.3:a:asciidoctor:asciidoctor:0.0.4
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cpe:2.3:a:asciidoctor:asciidoctor:0.0.5
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cpe:2.3:a:asciidoctor:asciidoctor:0.0.6
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cpe:2.3:a:asciidoctor:asciidoctor:0.0.7
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cpe:2.3:a:asciidoctor:asciidoctor:0.0.9
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cpe:2.3:a:asciidoctor:asciidoctor:0.1.0
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cpe:2.3:a:asciidoctor:asciidoctor:0.1.1
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cpe:2.3:a:asciidoctor:asciidoctor:0.1.2
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cpe:2.3:a:asciidoctor:asciidoctor:0.1.3
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cpe:2.3:a:asciidoctor:asciidoctor:0.1.4
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cpe:2.3:a:asciidoctor:asciidoctor:1.5.0
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cpe:2.3:a:asciidoctor:asciidoctor:1.5.1
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cpe:2.3:a:asciidoctor:asciidoctor:1.5.2
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cpe:2.3:a:asciidoctor:asciidoctor:1.5.3
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cpe:2.3:a:asciidoctor:asciidoctor:1.5.4
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cpe:2.3:a:asciidoctor:asciidoctor:1.5.5
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cpe:2.3:a:asciidoctor:asciidoctor:1.5.6
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cpe:2.3:a:asciidoctor:asciidoctor:1.5.6.1
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cpe:2.3:a:asciidoctor:asciidoctor:1.5.6.2
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cpe:2.3:a:asciidoctor:asciidoctor:1.5.7
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cpe:2.3:a:asciidoctor:asciidoctor:1.5.7.1