VulnerabilityModified
CVE-2019-14853
During signature decoding, malformed DER signatures could raise unexpected exceptions (or no exceptions at all), which could lead to a denial of service.
HIGH 7.5EPSS 2.41%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.41%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 2.41% probability · 83th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-391, CWE-755
- Affected
- python-ecdsa project/python-ecdsa
- Source
- secalert@redhat.com
References
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14853Issue Tracking, Third Party Advisory
- https://github.com/warner/python-ecdsa/releases/tag/python-ecdsa-0.13.3Release Notes
- https://seclists.org/bugtraq/2019/Dec/33
- https://www.debian.org/security/2019/dsa-4588
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14853Issue Tracking, Third Party Advisory
- https://github.com/warner/python-ecdsa/releases/tag/python-ecdsa-0.13.3Release Notes
- https://seclists.org/bugtraq/2019/Dec/33
- https://www.debian.org/security/2019/dsa-4588
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.