critical9.1
CVE-2021-4070
Off-by-one Error in v2fly/v2ray-core
Impact
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.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| go | github.com/v2fly/v2ray-core/v4 | < 4.44.0 | 4.44.0 |
| go | github.com/v2fly/v2ray-core | < 4.44.0 | none recorded |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| V2fly | V2ray-Core | before 4.44.0 |