USN-4247-1: python-apt vulnerabilities
Severity
Medium
Vendor
Canonical Ubuntu
Versions Affected
- Canonical Ubuntu 16.04
Description
It was discovered that python-apt would still use MD5 hashes to validate certain downloaded packages. If a remote attacker were able to perform a man-in-the-middle attack, this flaw could potentially be used to install altered packages. (CVE-2019-15795)
It was discovered that python-apt could install packages from untrusted repositories, contrary to expectations. (CVE-2019-15796)
CVEs contained in this USN include: CVE-2019-15795, CVE-2019-15796.
Affected Cloud Foundry Products and Versions
Severity is medium unless otherwise noted.
- Xenial Stemcells
- 621.x versions prior to 621.55
- 456.x versions prior to 456.96
- 315.x versions prior to 315.167
- 250.x versions prior to 250.181
- 170.x versions prior to 170.201
- 97.x versions prior to 97.230
- All other stemcells not listed.
Mitigation
Users of affected products are strongly encouraged to follow the mitigations below. The Cloud Foundry project recommends upgrading the following releases:
- Xenial Stemcells
- Upgrade 621.x versions to 621.55 or greater
- Upgrade 456.x versions to 456.96 or greater
- Upgrade 315.x versions to 315.167 or greater
- Upgrade 250.x versions to 250.181 or greater
- Upgrade 170.x versions to 170.201 or greater
- Upgrade 97.x versions to 97.230 or greater
- All other stemcells should be upgraded to the latest version available on bosh.io.
References
History
2020-01-22: Initial vulnerability report published.
