Security context
What an agent needs to avoid regressing past fixes and find the next vuln in this repo.
bboe/update_checker
main @ af8445d
3
Fixes
0
CVEs
HIGH
Peak severity
Highlights
Denial of Service: 2 prior fixes. Scrutinize any change in this area.
src/update_checker/core.py: most-fixed (3 issues). Treat as high-risk during review.
1 high-severity fix in this history; regressions here are high-impact.
Recurring patterns
The bug types that recur here, drawn from past fixes, not open vulnerabilities.
Arbitrary Code Execution: The application previously loaded serialized cache data from a shared temporary directory using the insecure 'pickle' module, allowing a local attacker to execute arbitrary code by poisoning the cache file. Developers must ensure that all local serialization uses secure formats like JSON and strictly validates storage paths.
Denial of Service: The application was vulnerable to socket hang or exhaustion during package updates due to unlimited HTTP response sizes and a lack of wall-clock timeouts during socket reads. This allows a slow-drip or excessively large remote response to hang the process indefinitely.
Denial of Service: A lack of type validation on permacache timestamps could lead to an unhandled TypeError when calculating cache expiration, resulting in an application crash. Any cached metadata must be validated for type correctness upon retrieval.