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ubuntucveUbuntu.comUB:CVE-2019-15796
HistoryJan 20, 2020 - 12:00 a.m.

CVE-2019-15796

2020-01-2000:00:00
ubuntu.com
ubuntu.com
7

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

31.5%

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.

Bugs

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

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

31.5%