python-apt prior 1.9.0ubuntu1.2 Hash apt/package.py improper authentication

CVSS Meta Temp Score
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CTI Interest Score
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5.0$0-$5k0.00

Summaryinfo

A vulnerability described as critical has been identified in python-apt. Affected is an unknown function of the file apt/package.py of the component Hash Handler. Such manipulation leads to improper authentication. This vulnerability is referenced as CVE-2019-15796. It is possible to launch the attack remotely. No exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in python-apt (Programming Language Software). It has been rated as critical. Affected by this issue is an unknown code block of the file apt/package.py of the component Hash Handler. The manipulation with an unknown input leads to a improper authentication vulnerability. Using CWE to declare the problem leads to CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. Impacted is confidentiality, integrity, and availability. CVE summarizes:

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.

The weakness was published 03/26/2020. This vulnerability is handled as CVE-2019-15796 since 08/29/2019. The exploitation is known to be difficult. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available.

Upgrading to version 1.9.5, 1.9.0ubuntu1.2, 1.6.5ubuntu0.1, 1.1.0~beta1ubuntu0.16.04.7, 0.9.3.5ubuntu3+esm2 or 0.8.3ubuntu7.5 eliminates this vulnerability.

Similar entry is available at VDB-152359. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.1
VulDB Meta Temp Score: 5.0

VulDB Base Score: 5.8
VulDB Temp Score: 5.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 4.7
NVD Vector: 🔍

CNA Base Score: 4.7
CNA Vector (Canonical Ltd.): 🔍

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Improper authentication
CWE: CWE-287
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: python-apt 1.9.5/1.9.0ubuntu1.2/1.6.5ubuntu0.1/1.1.0~beta1ubuntu0.16.04.7/0.9.3.5ubuntu3+esm2/0.8.3ubuntu7.5

Timelineinfo

08/29/2019 🔍
03/26/2020 +210 days 🔍
03/26/2020 +0 days 🔍
05/10/2025 +1871 days 🔍

Sourcesinfo

Status: Confirmed

CVE: CVE-2019-15796 (🔍)
GCVE (CVE): GCVE-0-2019-15796
GCVE (VulDB): GCVE-100-152360
See also: 🔍

Entryinfo

Created: 03/26/2020 16:25
Updated: 05/10/2025 03:17
Changes: 03/26/2020 16:25 (37), 03/26/2020 16:30 (12), 05/11/2024 20:30 (34), 05/10/2025 03:17 (6)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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