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GHSA-4cxw-hq44-r344

Off-by-one Error in v2fly/v2ray-core

Source: GitHub Advisory Database (reviewed) Critical CVE-2021-4070

Packages

EcosystemPackageAffectedFixed in
Go github.com/v2fly/v2ray-core/v4 < 4.44.0 4.44.0
Go github.com/v2fly/v2ray-core < 4.44.0 no fix listed

Details

As written in the advisory (Markdown source, shown as plain text).

v2fly/v2ray-core prior to 4.44.0 is vulnerable to an off-by-one error. Indexing operations on arrays, slices, or strings should use an index at most one less than the length. If the index is checked for being less than or equal to the length (`<=`), instead of less than the length (`<`), the index could be out of bounds.

References

External links from the advisory. They lead to third-party sites.