7.5high

CVE-2017-14158

Scrapy denial of service vulnerability

Also known as GHSA-h7wm-ph43-c39p, PYSEC-2017-83

Published 9 y ago · modified 4 mo ago · JSON

CVSS
7.5
v3.0 · NVD
CISA KEV
No
not known exploited
EPSS
2.6%
percentile 85%
Public exploits
0
none known

Summary

Scrapy 1.4 allows remote attackers to cause a denial of service (memory consumption) via large files because arbitrarily many files are read into memory, which is especially problematic if the files are then individually written in a separate thread to a slow storage resource, as demonstrated by interaction between dataReceived (in core/downloader/handlers/http11.py) and S3FilesStore.

Exploit prediction (EPSS)

2.60% probability of exploitation in the next 30 days, higher than 85% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
NVD3.07.5CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD2.07.8AV:N/AC:L/Au:N/C:N/I:N/A:C
GitHub3.07.5CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected packages

EcosystemPackageAffectedFixed in
pypiscrapy
>=0.7, <=2.15.2
>=0.7
no fix listed

Classification

Weakness
  • CWE-400 Uncontrolled Resource Consumption

References

  • github.com /scrapy/scrapy/issues/482 · x_refsource_MISC, x_transferred
  • blog.csdn.net /wangtua/article/details/75228728 · x_refsource_MISC, x_transferred
  • nvd.nist.gov /vuln/detail/CVE-2017-14158 · advisory
  • github.com /pypa/advisory-database/blob/8b7a4d62a95e8f605e5dfb4e0b4f299e6403dc12/vulns/scrapy/PYSEC-2 · web
  • github.com /pypa/advisory-database/tree/main/vulns/scrapy/PYSEC-2017-83.yaml · web
  • github.com /scrapy/scrapy · package
  • github.com /advisories/GHSA-h7wm-ph43-c39p · advisory

Sources

vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.