CVE-2019-15796 — MEDIUM (4.7)

Vulnerability 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.

CVSS Score

4.7

MEDIUM

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality

LOW

Integrity

LOW

Availability

NONE

Affected Products

Vendor	Product	Versions
Ubuntu	Python-Apt	0.8.0
Canonical	Ubuntu Linux	12.04
Debian	Python-Apt	1.8.4

Related Weaknesses (CWE)

CWE-287 CWE-347

References

https://usn.ubuntu.com/4247-1/PatchThird Party Advisory
https://usn.ubuntu.com/4247-3/PatchThird Party Advisory
https://usn.ubuntu.com/4247-1/PatchThird Party Advisory
https://usn.ubuntu.com/4247-3/PatchThird Party Advisory

FAQ

What is CVE-2019-15796?

CVE-2019-15796 is a vulnerability with a CVSS score of 4.7 (MEDIUM). 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. ...

How severe is CVE-2019-15796?

CVE-2019-15796 has been rated MEDIUM with a CVSS base score of 4.7/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2019-15796?

Check the references section above for vendor advisories and patch information. Affected products include: Ubuntu Python-Apt, Canonical Ubuntu Linux, Debian Python-Apt.