CVE-2019-15795

2020-01-2000:00:00

ubuntu.com

4.7 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

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

2.6 Low

CVSS2

Access Vector

NETWORK

Access Complexity

HIGH

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:H/Au:N/C:N/I:P/A:N

0.001 Low

EPSS

Percentile

23.6%

JSON

python-apt only checks the MD5 sums of downloaded files in
Version.fetch_binary() and Version.fetch_source() of apt/package.py in
version 1.9.0ubuntu1 and earlier. This allows a man-in-the-middle attack
which could potentially be used to install altered packages and has been
fixed in versions 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.

Bugs

<https://bugs.launchpad.net/ubuntu/+source/python-apt/+bug/1858972>

Notes

Author	Note
mdeslaur	this requires a fix in aptdaemon also

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchpython-apt< 1.6.5ubuntu0.1UNKNOWN
ubuntu19.04noarchpython-apt< 1.8.5~ubuntu0.2UNKNOWN
ubuntu19.10noarchpython-apt< 1.9.0ubuntu1.2UNKNOWN
ubuntu14.04noarchpython-apt< 0.9.3.5ubuntu3+esm2) Available with Ubuntu Pro or Ubuntu Pro (Infra-onlyUNKNOWN
ubuntu16.04noarchpython-apt< 1.1.0~beta1ubuntu0.16.04.7UNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	18.04	noarch	python-apt	< 1.6.5ubuntu0.1	UNKNOWN
ubuntu	19.04	noarch	python-apt	< 1.8.5~ubuntu0.2	UNKNOWN
ubuntu	19.10	noarch	python-apt	< 1.9.0ubuntu1.2	UNKNOWN
ubuntu	14.04	noarch	python-apt	< 0.9.3.5ubuntu3+esm2) Available with Ubuntu Pro or Ubuntu Pro (Infra-only	UNKNOWN
ubuntu	16.04	noarch	python-apt	< 1.1.0~beta1ubuntu0.16.04.7	UNKNOWN