Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Possible buffer overflow in client library in Attachment::getInfo() call [CORE6432] #6669

Closed
firebird-issue-importer opened this issue Oct 28, 2020 · 5 comments

Comments

@firebird-issue-importer

Submitted by: @AlexPeshkoff

The loop in merge.cpp:72 expects the `in` buffer to eventually contain either isc_info_end, isc_info_truncated or isc_info_implementation, and will otherwise read out of buffer bounds with good chance for access violation.

With correctly working providers chances to get that error are very low, but it can happen in case of bug in provider (on server) or malware server replacement (on client).

Commits: ea6dc2a f88c95a

@firebird-issue-importer
Copy link
Author

@firebird-issue-importer firebird-issue-importer commented Oct 28, 2020

Modified by: @AlexPeshkoff

assignee: Alexander Peshkov [ alexpeshkoff ]

@firebird-issue-importer
Copy link
Author

@firebird-issue-importer firebird-issue-importer commented Oct 28, 2020

Modified by: @AlexPeshkoff

summary: Possible buffer overflow in client library => Possible buffer overflow in client library in Attachment::getInfo() call

@firebird-issue-importer
Copy link
Author

@firebird-issue-importer firebird-issue-importer commented Oct 28, 2020

Modified by: @AlexPeshkoff

status: Open [ 1 ] => Resolved [ 5 ]

resolution: Fixed [ 1 ]

Fix Version: 4.0 RC 1 [ 10930 ]

Fix Version: 3.0.8 [ 10960 ]

@firebird-issue-importer
Copy link
Author

@firebird-issue-importer firebird-issue-importer commented Oct 29, 2020

Modified by: @pavel-zotov

status: Resolved [ 5 ] => Resolved [ 5 ]

QA Status: No test => Cannot be tested

@firebird-issue-importer
Copy link
Author

@firebird-issue-importer firebird-issue-importer commented Oct 29, 2020

Modified by: @pavel-zotov

status: Resolved [ 5 ] => Closed [ 6 ]

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment