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Improper Verification of Cryptographic Signature Affecting python-apt package, versions <1.8.4.1

0.0
medium

Snyk CVSS

    Attack Complexity High
    User Interaction Required
    Scope Changed

    Threat Intelligence

    EPSS 0.08% (32nd percentile)
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NVD
4.7 medium

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  • Snyk ID SNYK-DEBIAN10-PYTHONAPT-542697
  • published 20 Jan 2020
  • disclosed 26 Mar 2020
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Introduced: 20 Jan 2020

CVE-2019-15796 Open this link in a new tab
CWE-347 Open this link in a new tab

How to fix?

Upgrade Debian:10 python-apt to version 1.8.4.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python-apt package and not the python-apt package as distributed by Debian. See How to fix? for Debian:10 relevant fixed versions and status.

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.