Ubuntu update for Django



Risk High
Patch available YES
Number of vulnerabilities 4
CVE-ID CVE-2019-14232
CVE-2019-14233
CVE-2019-14234
CVE-2019-14235
CWE-ID CWE-399
CWE-89
Exploitation vector Network
Public exploit N/A
Vulnerable software
 python-django (Ubuntu package)
Operating systems & Components / Operating system package or component

Vendor Canonical Ltd.

Security Bulletin

This security bulletin contains information about 4 vulnerabilities.

1) Resource management error

EUVDB-ID: #VU19617

Risk: Medium

CVSSv4.0: 4.6 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2019-14232

CWE-ID: CWE-399 - Resource Management Errors

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to usage of truncatechars_html and truncatewords_html template filters in django.utils.text.Truncator during evaluation of HTML content. A remote attacker can pass large content in HTML format to the application and trigger resource exhaustion.

Mitigation

Update the affected packages.

Ubuntu 19.04
python-django - 1:1.11.20-1ubuntu0.2
python3-django - 1:1.11.20-1ubuntu0.2
Ubuntu 18.04 LTS
python-django - 1:1.11.11-1ubuntu1.5
python3-django - 1:1.11.11-1ubuntu1.5
Ubuntu 16.04 LTS
python-django - 1.8.7-1ubuntu5.10
python3-django - 1.8.7-1ubuntu5.10

Vulnerable software versions

python-django (Ubuntu package): 1:1.11.11-1ubuntu1.1 - 1.8.7-1ubuntu5.9

CPE2.3 External links

https://usn.ubuntu.com/4084-1/


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Resource management error

EUVDB-ID: #VU19618

Risk: Medium

CVSSv4.0: 4.6 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2019-14233

CWE-ID: CWE-399 - Resource Management Errors

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to usage of django.utils.html.strip_tags() during evaluation of HTML content. A remote attacker can pass large content in HTML format to the application and trigger resource exhaustion.

Mitigation

Update the affected packages.

Ubuntu 19.04
python-django - 1:1.11.20-1ubuntu0.2
python3-django - 1:1.11.20-1ubuntu0.2
Ubuntu 18.04 LTS
python-django - 1:1.11.11-1ubuntu1.5
python3-django - 1:1.11.11-1ubuntu1.5
Ubuntu 16.04 LTS
python-django - 1.8.7-1ubuntu5.10
python3-django - 1.8.7-1ubuntu5.10

Vulnerable software versions

python-django (Ubuntu package): 1:1.11.11-1ubuntu1.1 - 1.8.7-1ubuntu5.9

CPE2.3 External links

https://usn.ubuntu.com/4084-1/


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

3) SQL injection

EUVDB-ID: #VU19619

Risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2019-14234

CWE-ID: CWE-89 - Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary SQL queries in database.

The vulnerability exists due to insufficient sanitization of user-supplied data in django.contrib.postgres.fields.JSONField and django.contrib.postgres.fields.HStoreField. A remote attacker can send a specially crafted request to the affected application and execute arbitrary SQL commands within the application database.

Successful exploitation of this vulnerability may allow a remote attacker to read, delete, modify data in database and gain complete control over the affected application.

Mitigation

Update the affected packages.

Ubuntu 19.04
python-django - 1:1.11.20-1ubuntu0.2
python3-django - 1:1.11.20-1ubuntu0.2
Ubuntu 18.04 LTS
python-django - 1:1.11.11-1ubuntu1.5
python3-django - 1:1.11.11-1ubuntu1.5
Ubuntu 16.04 LTS
python-django - 1.8.7-1ubuntu5.10
python3-django - 1.8.7-1ubuntu5.10

Vulnerable software versions

python-django (Ubuntu package): 1:1.11.11-1ubuntu1.1 - 1.8.7-1ubuntu5.9

CPE2.3 External links

https://usn.ubuntu.com/4084-1/


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

4) Resource management error

EUVDB-ID: #VU19620

Risk: Medium

CVSSv4.0: 4.6 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2019-14235

CWE-ID: CWE-399 - Resource Management Errors

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to an error when parsing URF-8 data with django.utils.encoding.uri_to_iri(). A remote attacker can pass specially crafted content to the application and consume all available memory on the system.

Mitigation

Update the affected packages.

Ubuntu 19.04
python-django - 1:1.11.20-1ubuntu0.2
python3-django - 1:1.11.20-1ubuntu0.2
Ubuntu 18.04 LTS
python-django - 1:1.11.11-1ubuntu1.5
python3-django - 1:1.11.11-1ubuntu1.5
Ubuntu 16.04 LTS
python-django - 1.8.7-1ubuntu5.10
python3-django - 1.8.7-1ubuntu5.10

Vulnerable software versions

python-django (Ubuntu package): 1:1.11.11-1ubuntu1.1 - 1.8.7-1ubuntu5.9

CPE2.3 External links

https://usn.ubuntu.com/4084-1/


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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