VDB-152359 · CVE-2019-15795 · GCVE-0-2019-15795

python-apt MD5 apt/package.py risky encryption

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.0	$0-$5k	0.00

Summaryinfo

A vulnerability marked as critical has been reported in python-apt. This impacts an unknown function of the file apt/package.py of the component MD5 Handler. This manipulation causes risky encryption. The identification of this vulnerability is CVE-2019-15795. It is possible to initiate the attack remotely. There is no exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in python-apt (Programming Language Software). It has been declared as critical. Affected by this vulnerability is an unknown code of the file apt/package.py of the component MD5 Handler. The manipulation with an unknown input leads to a risky encryption vulnerability. The CWE definition for the vulnerability is CWE-327. The product uses a broken or risky cryptographic algorithm or protocol. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

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.

The weakness was shared 03/26/2020. This vulnerability is known as CVE-2019-15795 since 08/29/2019. The exploitation appears to be difficult. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1600 according to MITRE ATT&CK.

Upgrading to version 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.

The entry VDB-152360 is related to this item. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Programming Language Software

Name

python-apt

CPE 2.3info

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CPE 2.2info

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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

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Risky encryption
CWE: CWE-327 / CWE-310
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: python-apt 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-2019-15795 (🔍)
GCVE (CVE): GCVE-0-2019-15795
GCVE (VulDB): GCVE-100-152359
See also: 🔍

Entryinfo

Created: 03/26/2020 16:25
Updated: 05/10/2025 03:34
Changes: 03/26/2020 16:25 (38), 03/26/2020 16:30 (12), 05/11/2024 20:22 (34), 05/10/2025 03:34 (6)
Complete: 🔍
Cache ID: 216::103