CVE-2019-15796
python-apt Does Not Check Hash Signature
4.7
MEDIUM
CVSS 3.1
EPSS 0.17%
Description
Python-apt doesn't check if hashes are signed in `Version.fetch_binary()` and `Version.fetch_source()` of apt/package.py or in `_fetch_archives()` of apt/cache.py in version 1.9.3ubuntu2 and earlier. This allows downloads from unsigned repositories which shouldn't be allowed and has been fixed in verisions 1.9.5, 1.9.0ubuntu1.2, 1.6.5ubuntu0.1, 1.1.0~beta1ubuntu0.16.04.7, 0.9.3.5ubuntu3+esm2, and 0.8.3ubuntu7.5.
How to fix CVE-2019-15796
To remediate CVE-2019-15796, upgrade the affected package to a fixed version below.
- —upgrade to 1.8.5 or later
- —upgrade to 0.8.3ubuntu7.5 or later
Is CVE-2019-15796 being exploited?
Low — EPSS is 0.2%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 1.8.5
- from 0, < 0.8.3ubuntu7.5
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM4.7 | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N |