pixeebot[bot] commented 6 months ago

This codemod hardens all readline() calls from file objects returned from an open() call, StringIO and BytesIO against denial of service attacks. A stream influenced by an attacker could keep providing bytes until the system runs out of memory, causing a crash.

Fixing it is straightforward by providing adding a size argument to any readline() calls. The changes from this codemod look like this:

  file = open('some_file.txt')
- file.readline()
+ file.readline(5_000_000)

Micro-Learning Topic: Denial of service (Detected by phrase)

Matched on "denial of service"

The Denial of Service (DoS) attack is focused on making a resource (site, application, server) unavailable for the purpose it was designed. There are many ways to make a service unavailable for legitimate users by manipulating network packets, programming, logical, or resources handling vulnerabilities, among others. Source: https://www.owasp.org/index.php/Denial_of_Service

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performance-testing-bot[bot] commented 6 months ago

Unable to locate .performanceTestingBot config file

code-companion-ai[bot] commented 6 months ago

Processing PR updates...

codesyncapp[bot] commented 6 months ago

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git-greetings[bot] commented 6 months ago

Thanks @pixeebot[bot] for opening this PR!

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git-greetings[bot] commented 6 months ago

PR Details of @pixeebot[bot] in lartpang-PySODEvalToolkit :	OPEN	CLOSED	TOTAL
3	1	4

sweep-ai[bot] commented 6 months ago

Sweep: PR Review

Authors of pull request: @pixeebot[bot]

This pull request aimed to improve the performance and memory usage of functions that read lines from files in the utils/misc.py module.

The get_name_list_and_suffix, get_name_list, and get_list_with_suffix functions were updated to use file.readline(5_000_000) instead of file.readline(). This change limits the number of characters read per line to 5,000,000, which helps manage memory usage more efficiently and can improve performance when dealing with files that have extremely long lines.

These modifications ensure that the functions can handle large files more effectively without running into memory issues or performance bottlenecks.

Sweep Found These Issues

utils/misc.py

The change to file.readline(5_000_000) may not handle lines longer than 5,000,000 characters, potentially causing incomplete reads for extremely long lines.

pixeebot[bot] commented 6 months ago

I'm confident in this change, but I'm not a maintainer of this project. Do you see any reason not to merge it?

If this change was not helpful, or you have suggestions for improvements, please let me know!

pixeebot[bot] commented 6 months ago

Just a friendly ping to remind you about this change. If there are concerns about it, we'd love to hear about them!

pixeebot[bot] commented 6 months ago

This change may not be a priority right now, so I'll close it. If there was something I could have done better, please let me know!

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2lambda123 / lartpang-PySODEvalToolkit

Limit readline() #4

Micro-Learning Topic: Denial of service (Detected by phrase)

Matched on "denial of service"

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Review Skipped

Sweep: PR Review

Sweep Found These Issues