You are viewing a plain text version of this content. The canonical link for it is here.
Posted to dev@pdfbox.apache.org by "Tilman Hausherr (Jira)" <ji...@apache.org> on 2025/07/23 07:48:00 UTC
[jira] [Resolved] (PDFBOX-6038) Potential StackOverflow in PDFStreamParser
[ https://issues.apache.org/jira/browse/PDFBOX-6038?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Tilman Hausherr resolved PDFBOX-6038.
-------------------------------------
Resolution: Fixed
Thank you; if this ever happens with files from the wild we may have to improve this so that the rest of the stream can be parsed.
> Potential StackOverflow in PDFStreamParser
> ------------------------------------------
>
> Key: PDFBOX-6038
> URL: https://issues.apache.org/jira/browse/PDFBOX-6038
> Project: PDFBox
> Issue Type: Bug
> Components: Parsing
> Affects Versions: 2.0.34, 3.0.5 PDFBox, 4.0.0
> Reporter: David Justamante
> Assignee: Tilman Hausherr
> Priority: Minor
> Labels: patch
> Fix For: 2.0.35, 3.0.6 PDFBox, 4.0.0
>
> Attachments: data.bin, patch.diff
>
>
> This issue is being *manually* filed by the competition organizers. We recognize there is a number of AI generated submissions as of late. We have gone through the manual process of bug/patch validation to prevent unnecessary "noise", respecting maintainers' time.
> This submission is being sent as part of DARPA's AIxCC competition. (https://aicyberchallenge.com) This issue was discovered by an autonomous Cyber Reasoning System (CRS) and validated by competition engineers. The patch was manually constructed by the competition engineers.
> BeginImage tags trigger recursion. If a stream has any number of {{BI}} greater than {{{}-Xss{}}}, then a StackOverflow is triggered.
> Triggering code: [https://github.com/google/oss-fuzz/blob/master/projects/pdfbox/project-parent/fuzz-targets/src/test/java/com/example/PDFStreamParserFuzzer.java#L39]
> The patch sets an arbitrary max depth. We didn't spend the time to determine if any recursion is allowed within an inline image.
> (AIxCC Internal: CHA-1728)
--
This message was sent by Atlassian Jira
(v8.20.10#820010)
---------------------------------------------------------------------
To unsubscribe, e-mail: dev-unsubscribe@pdfbox.apache.org
For additional commands, e-mail: dev-help@pdfbox.apache.org