Hoverfly: Process Crash via Concurrent Map Write Race Condition in Diff Mode
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
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| SpectoLabs | hoverfly | affected |
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| Vendor | Product | Versions | ||||||||
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| Spectolabs | Hoverfly |
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| Source | ID | Title |
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Github GHSA |
GHSA-qrh4-p6v4-mrfg | Hoverfly: Process Crash via Concurrent Map Write Race Condition in Diff Mode |
No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.470% probability within 30 days)
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| Metrics |
ssvc
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| First Time appeared |
Spectolabs
Spectolabs hoverfly |
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| Vendors & Products |
Spectolabs
Spectolabs hoverfly |
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| Description | Hoverfly is an open source API simulation tool. Prior to version 1.12.8, when Hoverfly is running in Diff mode, the `AddDiff()` function writes to the shared `responsesDiff` map without any synchronization (no mutex). When multiple proxy requests are processed concurrently (the normal case for any proxy), the concurrent map writes trigger Go's built-in race detector which causes a `fatal error: concurrent map read and map write`, immediately killing the entire Hoverfly process. This is trivially exploitable by sending multiple simultaneous requests. Version 1.12.8 patches the issue. | |
| Title | Hoverfly: Process Crash via Concurrent Map Write Race Condition in Diff Mode | |
| Weaknesses | CWE-362 CWE-820 |
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| References |
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| Metrics |
cvssV3_1
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