| ID |
CVE-2016-6581
|
| Sažetak |
A HTTP/2 implementation built using any version of the Python HPACK library between v1.0.0 and v2.2.0 could be targeted for a denial of service attack, specifically a so-called "HPACK Bomb" attack. This attack occurs when an attacker inserts a header field that is exactly the size of the HPACK dynamic header table into the dynamic header table. The attacker can then send a header block that is simply repeated requests to expand that field in the dynamic table. This can lead to a gigantic compression ratio of 4,096 or better, meaning that 16kB of data can decompress to 64MB of data on the target machine. |
| Reference |
|
| CVSS |
| Base: | 7.8 |
| Impact: | 6.9 |
| Exploitability: | 10.0 |
|
| Pristup |
| Vektor | Složenost | Autentikacija |
| NETWORK |
LOW |
NONE |
|
| Impact |
| Povjerljivost | Cjelovitost | Dostupnost |
| NONE |
NONE |
COMPLETE |
|
| CVSS vektor |
AV:N/AC:L/Au:N/C:N/I:N/A:C |
| Zadnje važnije ažuriranje |
27-01-2017 - 19:41 |
| Objavljeno |
10-01-2017 - 15:59 |
