Python HPACK 2.2
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cpe:2.3:a:python:hpack:2.2:*:*:*:*:*:*:*
part: a version: 2.2 update: *
| Vendor | Python (b57ad93a-6195-5192-9423-6cfad6044a8b) |
|---|---|
| Product | Hpack (bf495c7f-f880-5abc-a7e9-77507fe89d77) |
| Edition | * |
| Language | * |
| Software edition | * |
| Target software | * |
| Target hardware | * |
| Other | * |
| Notes | Imported from NVD CPE 2.0 feed |
PURL mappings
| PURL | Source | Last updated |
|---|---|---|
pkg:deb/debian/python-hpack |
purl2cpe | 2026-06-01 10:16:28.285358 |
pkg:deb/ubuntu/python-hpack |
purl2cpe | 2026-06-01 10:16:28.285359 |
pkg:github/python-hyper/hpack |
purl2cpe | 2026-06-01 10:16:28.285361 |
pkg:gitlab/kalilinux/python-hpack |
purl2cpe | 2026-06-01 10:16:28.285362 |
pkg:pypi/hpack |
purl2cpe | 2026-06-01 10:16:28.285363 |
pkg:rpm/fedora/python-hpack |
purl2cpe | 2026-06-01 10:16:28.285365 |
pkg:rpm/opensuse/python-hpack |
purl2cpe | 2026-06-01 10:16:28.285366 |
Vulnerability references
| Identifier | cpeApplicability | Submitted | db.gcve.eu details | Rationale |
|---|---|---|---|---|
CVE:CVE-2016-6581 |
vulnerable | 2026-06-03 14:36:00.725567 |
Details available
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.
Published: 2017-01-10T15:00:00.000Z
Updated: 2024-08-06T01:36:28.459Z |
Imported from gcve-enriched-dumps CVE data |
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