Published: 26/11/2019 Updated: 17/12/2019

CVSS v2 Base Score: 5 | Impact Score: 2.9 | Exploitability Score: 10

CVSS v3 Base Score: 7.5 | Impact Score: 3.6 | Exploitability Score: 3.9

VMScore: 445

Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P

It exists that python-ecdsa incorrectly handled certain signatures. A remote attacker could possibly use this issue to cause python-ecdsa to generate unexpected exceptions, resulting in a denial of service. (CVE-2019-14853)

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python-ecdsa project python-ecdsa

Several security issues were fixed in python-ecdsa ...

It was discovered that python-ecdsa, a cryptographic signature library for Python, incorrectly handled certain signatures A remote attacker could use this issue to cause python-ecdsa to either not warn about incorrect signatures, or generate exceptions resulting in a denial-of-service For the oldstable distribution (stretch), these problems have ...

An error-handling flaw was found in python-ecdsa before version 0133 During signature decoding, malformed DER signatures could raise unexpected exceptions (or no exceptions at all), which could lead to a denial of service (CVE-2019-14853) A flaw was found in all python-ecdsa versions before 0133, where it did not correctly verify whether sign ...

CWE-755 https://github.com/warner/python-ecdsa/releases/tag/python-ecdsa-0.13.3 https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14853 https://www.debian.org/security/2019/dsa-4588 https://seclists.org/bugtraq/2019/Dec/33 https://usn.ubuntu.com/4196-1/https://nvd.nist.gov

CVE-2019-14853

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