9.8crit

CVE-2016-7036

python-jose failure to use a constant time comparison for HMAC keys

Also known as GHSA-w799-prg3-cx77, PYSEC-2017-28

Published 9 y ago · modified 4 mo ago · JSON

CVSS
9.8
v3.0 · NVD
CISA KEV
No
not known exploited
EPSS
2.2%
percentile 82%
Public exploits
0
none known

Summary

python-jose before 1.3.2 allows attackers to have unspecified impact by leveraging failure to use a constant time comparison for HMAC keys.

Exploit prediction (EPSS)

2.17% probability of exploitation in the next 30 days, higher than 82% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
NVD3.09.8CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD2.07.5AV:N/AC:L/Au:N/C:P/I:P/A:P
GitHub3.09.8CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected packages

EcosystemPackageAffectedFixed in
pypipython-jose
<1.3.2
1.3.2

Classification

Weakness

References

  • github.com /mpdavis/python-jose/releases/tag/1.3.2 · x_refsource_CONFIRM, x_transferred
  • securityfocus.com /bid/95845 · vdb-entry, x_refsource_BID, x_transferred
  • github.com /mpdavis/python-jose/pull/35/commits/89b46353b9f611e9da38de3d2fedf52331167b93 · x_refsource_CONFIRM, x_transferred
  • nvd.nist.gov /vuln/detail/CVE-2016-7036 · advisory
  • github.com /mpdavis/python-jose/commit/73007d6887a7517ac07c6e755e494baee49ef513 · web
  • github.com /mpdavis/python-jose · package
  • github.com /pypa/advisory-database/tree/main/vulns/python-jose/PYSEC-2017-28.yaml · web
  • web.archive.org /web/20210123221523/http://www.securityfocus.com/bid/95845 · web
  • github.com /advisories/GHSA-w799-prg3-cx77 · advisory

Sources

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