CVE-2016-6580 priority vulnerable to denial of service
HighCVSS 7.5
EPSS 1.8%
- Published
- Updated
- Exploit status
- No public exploit known
Description
A HTTP/2 implementation built using any version of the Python priority library prior to version 1.2.0 could be targeted by a malicious peer by having that peer assign priority information for every possible HTTP/2 stream ID. The priority tree would happily continue to store the priority information for each stream, and would therefore allocate unbounded amounts of memory. Attempting to actually use a tree like this would also cause extremely high CPU usage to maintain the tree.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| pypi priority(PyPI) | < 1.2.0 | 1.2.0 |
| pypi priority(PyPI) | = 0.0.1 | No fix listed |
| pypi priority(PyPI) | = 1.0.0 | No fix listed |
| pypi priority(PyPI) | = 1.1.0 | No fix listed |
| pypi priority(PyPI) | = 1.1.1 | No fix listed |
| python priority library | = 1.0.0 | No fix listed |
| python priority library | = 1.1.0 | No fix listed |
| python priority library | = 1.1.1 | No fix listed |
References
- nvd.nist.gov third-party-advisory vendor-advisory
- github.com patch
- github.com
- github.com product
- python-hyper.org mitigation vendor-advisory
- web.archive.org
- 92311 third-party-advisory vdb-entry
- github.com vendor-advisory