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PYSEC-2019-177

Quick fix

PYSEC-2019-177 — ecdsa: upgrade to the fixed version with the command below.

pip install --upgrade 'ecdsa>=0.13.3'

Details

An error-handling flaw was found in python-ecdsa before version 0.13.3. During signature decoding, malformed DER signatures could raise unexpected exceptions (or no exceptions at all), which could lead to a denial of service.

Are you affected?

Enter the version of the package you're using.

Affected packages

PyPI/ecdsa

Introduced in: 0Fixed in: 0.13.3

Fixpip install --upgrade 'ecdsa>=0.13.3'

References

https://github.com/warner/python-ecdsa/releases/tag/python-ecdsa-0.13.3[WEB]
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14853[REPORT]
https://www.debian.org/security/2019/dsa-4588[ADVISORY]
https://seclists.org/bugtraq/2019/Dec/33[WEB]
https://github.com/advisories/GHSA-2mrj-435v-c2cr[ADVISORY]
https://github.com/advisories/GHSA-pwfw-mgfj-7g3g[ADVISORY]