You are viewing a plain text version of this content. The canonical link for it is here.
Posted to dev@pdfbox.apache.org by "Tim Allison (Jira)" <ji...@apache.org> on 2020/02/14 18:51:00 UTC
[jira] [Updated] (PDFBOX-4623) COSParser: Infinite recursion
[ https://issues.apache.org/jira/browse/PDFBOX-4623?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Tim Allison updated PDFBOX-4623:
--------------------------------
Attachment: loop_in_page_tree.pdf
> COSParser: Infinite recursion
> -----------------------------
>
> Key: PDFBOX-4623
> URL: https://issues.apache.org/jira/browse/PDFBOX-4623
> Project: PDFBox
> Issue Type: Bug
> Components: Parsing
> Affects Versions: 2.0.16
> Environment: java version "12" 2019-03-19
> Java(TM) SE Runtime Environment (build 12+33)
> Java HotSpot(TM) 64-Bit Server VM (build 12+33, mixed mode, sharing)
> MacOS Mojave
> Reporter: Alex Rebert
> Priority: Minor
> Attachments: infinite-recursion.pdf, loop_in_page_tree.pdf
>
>
> Parsing an invalid PDF can lead to an infinite recursion in COSParser, which results in a StackOverflowError.
> *Steps to repro*
> # Download malformed PDF (attached)
> # {{Run: java -jar pdfbox-app-2.0.16.jar ExtractText infinite-recursion.pdf}}
> *Stacktrace*
> {noformat}
> Exception in thread "main" java.lang.StackOverflowError [1005/1916]
> at java.base/sun.nio.cs.UTF_8.updatePositions(UTF_8.java:79)
> at java.base/sun.nio.cs.UTF_8$Decoder.xflow(UTF_8.java:210)
> at java.base/sun.nio.cs.UTF_8$Decoder.decodeArrayLoop(UTF_8.java:321)
> at java.base/sun.nio.cs.UTF_8$Decoder.decodeLoop(UTF_8.java:414)
> at java.base/java.nio.charset.CharsetDecoder.decode(CharsetDecoder.java:578)
> at java.base/java.nio.charset.CharsetDecoder.decode(CharsetDecoder.java:801)
> at org.apache.pdfbox.pdfparser.BaseParser.isValidUTF8(BaseParser.java:787)
> at org.apache.pdfbox.pdfparser.BaseParser.parseCOSName(BaseParser.java:768)
> at org.apache.pdfbox.pdfparser.BaseParser.parseDirObject(BaseParser.java:887)
> at org.apache.pdfbox.pdfparser.BaseParser.parseCOSDictionaryValue(BaseParser.java:154)
> at org.apache.pdfbox.pdfparser.BaseParser.parseCOSDictionaryNameValuePair(BaseParser.java:283)
> at org.apache.pdfbox.pdfparser.BaseParser.parseCOSDictionary(BaseParser.java:216)
> at org.apache.pdfbox.pdfparser.BaseParser.parseDirObject(BaseParser.java:867)
> at org.apache.pdfbox.pdfparser.COSParser.parseFileObject(COSParser.java:912)
> at org.apache.pdfbox.pdfparser.COSParser.parseObjectDynamically(COSParser.java:881)
> at org.apache.pdfbox.pdfparser.COSParser.parseObjectDynamically(COSParser.java:801)
> at org.apache.pdfbox.pdfparser.COSParser.getLength(COSParser.java:1055)
> at org.apache.pdfbox.pdfparser.COSParser.parseCOSStream(COSParser.java:1114)
> at org.apache.pdfbox.pdfparser.COSParser.parseFileObject(COSParser.java:920)
> at org.apache.pdfbox.pdfparser.COSParser.parseObjectDynamically(COSParser.java:881)
> at org.apache.pdfbox.pdfparser.COSParser.parseObjectDynamically(COSParser.java:801)
> at org.apache.pdfbox.pdfparser.COSParser.getLength(COSParser.java:1055)
> at org.apache.pdfbox.pdfparser.COSParser.parseCOSStream(COSParser.java:1114)
> at org.apache.pdfbox.pdfparser.COSParser.parseFileObject(COSParser.java:920)
> at org.apache.pdfbox.pdfparser.COSParser.parseObjectDynamically(COSParser.java:881)
> at org.apache.pdfbox.pdfparser.COSParser.parseObjectDynamically(COSParser.java:801)
> at org.apache.pdfbox.pdfparser.COSParser.getLength(COSParser.java:1055)
> at org.apache.pdfbox.pdfparser.COSParser.parseCOSStream(COSParser.java:1114)
> at org.apache.pdfbox.pdfparser.COSParser.parseFileObject(COSParser.java:920)
> at org.apache.pdfbox.pdfparser.COSParser.parseObjectDynamically(COSParser.java:881)
> at org.apache.pdfbox.pdfparser.COSParser.parseObjectDynamically(COSParser.java:801)
> at org.apache.pdfbox.pdfparser.COSParser.getLength(COSParser.java:1055)
> at org.apache.pdfbox.pdfparser.COSParser.parseCOSStream(COSParser.java:1114)
> ...
> {noformat}
> The file was generated by fuzzing and is (probably) not a valid PDF file.
>
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
---------------------------------------------------------------------
To unsubscribe, e-mail: dev-unsubscribe@pdfbox.apache.org
For additional commands, e-mail: dev-help@pdfbox.apache.org