Your submission was sent successfully! Close

Thank you for contacting us. A member of our team will be in touch shortly. Close

You have successfully unsubscribed! Close

Thank you for signing up for our newsletter!
In these regular emails you will find the latest updates about Ubuntu and upcoming events where you can meet our team.Close

CVE-2019-15796

Publication date 20 January 2020

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

4.7 · Medium

Score breakdown

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.

Read the notes from the security team

Status

Package Ubuntu Release Status
python-apt 19.10 eoan
Fixed 1.9.0ubuntu1.2
19.04 disco
Fixed 1.8.5~ubuntu0.2
18.04 LTS bionic
Fixed 1.6.5ubuntu0.1
16.04 LTS xenial
Fixed 1.1.0~beta1ubuntu0.16.04.7
14.04 LTS trusty

Get expanded security coverage with Ubuntu Pro

Reduce your average CVE exposure time from 98 days to 1 day with expanded CVE patching, ten-years security maintenance and optional support for the full stack of open-source applications. Free for personal use.

Get Ubuntu Pro

Notes

mdeslaur

this requires a fix in aptdaemon also

Severity score breakdown

Parameter Value
Base score 4.7 · Medium
Attack vector Network
Attack complexity High
Privileges required None
User interaction Required
Scope Changed
Confidentiality Low
Integrity impact Low
Availability impact None
Vector CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N

References

Related Ubuntu Security Notices (USN)

    • USN-4247-3
    • python-apt vulnerabilities
    • 23 January 2020
    • USN-4247-1
    • python-apt vulnerabilities
    • 22 January 2020

Other references