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CVE-2019-15796
python-apt downloads from untrusted sources
Medium4.7EPSS 0.51%
- Published
- Updated
- Reserved
- Assigned by
- canonical
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| canonicalCNA (assigner) | 3.1 | Medium4.7 | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N |
| NVDNVD · Modified | 3.1 | Medium4.7 | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N |
- EPSS (exploitation in 30 days)
- 0.51% · top 56% of all CVEs (6 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.7.
Weakness
Affected products
- affected 0.8.3 – < 0.8.3ubuntu7.5
- affected 0.9.3.5 – < 0.9.3.5ubuntu3+esm2
- affected 1.1.0 – < 1.1.0~beta1ubuntu0.16.04.7
- affected 1.6.5 – < 1.6.5ubuntu0.1
- affected 1.9.0 – < 1.9.0ubuntu1.2
- affected 1.9.5 – < 1.9.5
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- PyPIpython-aptGHSA-pj65-3pf6-c5q4 (opens in a new tab)
References (2)
- https://usn.ubuntu.com/4247-1/ (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- https://usn.ubuntu.com/4247-3/ (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-pj65-3pf6-c5q4 (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
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[](https://trackcve.app/cve/CVE-2019-15796)Record last updated .