| Name | CVE-2019-14853 |
| 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. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-1978-1, DSA-4588-1 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| python-ecdsa (PTS) | jessie, jessie (lts) | 0.11-1+deb8u1 | fixed |
| stretch (security), stretch (lts), stretch | 0.13-2+deb9u1 | fixed |
| buster (security), buster, buster (lts) | 0.13-3+deb10u1 | fixed |
| bullseye | 0.16.1-1 | fixed |
| bookworm | 0.18.0-3 | fixed |
| sid, trixie | 0.19.0-2 | fixed |
The information below is based on the following data on fixed versions.
Notes
https://github.com/warner/python-ecdsa/issues/114
Upstream patches:
https://github.com/warner/python-ecdsa/pull/115
https://github.com/warner/python-ecdsa/pull/124
Fix for CVE-2019-14853 fixes as well CVE-2019-14859.