Ubuntu update for python-django



Risk Medium
Patch available YES
Number of vulnerabilities 3
CVE-ID CVE-2021-45115
CVE-2021-45116
CVE-2021-45452
CWE-ID CWE-399
CWE-22
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Ubuntu
Operating systems & Components / Operating system

python3-django (Ubuntu package)
Operating systems & Components / Operating system package or component

python-django (Ubuntu package)
Operating systems & Components / Operating system package or component

Vendor Canonical Ltd.

Security Bulletin

This security bulletin contains information about 3 vulnerabilities.

1) Resource management error

EUVDB-ID: #VU59179

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-45115

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 improper management of internal resources in UserAttributeSimilarityValidator when evaluating submitted password that were artificially large in relative to the comparison values. A remote attacker can pass specially crafted password to the application and perform a denial of service (DoS) attack.

Mitigation

Update the affected package python-django to the latest version.

Vulnerable software versions

Ubuntu: 18.04 - 21.10

python3-django (Ubuntu package): before 1:1.11.11-1ubuntu1.15

python-django (Ubuntu package): before 1:1.11.11-1ubuntu1.15

CPE2.3 External links

https://ubuntu.com/security/notices/USN-5204-1


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) Information exposure through externally-generated error message

EUVDB-ID: #VU59180

Risk: Low

CVSSv4.0: 1.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-45116

CWE-ID: N/A

Exploit availability: No

Description

The vulnerability allows a remote user to gain access to potentially sensitive information.

The vulnerability exists due to excessive data output by the application while handling error conditions in the dictsort template filter. A remote user can obtain sensitive information on the system.

Mitigation

Update the affected package python-django to the latest version.

Vulnerable software versions

Ubuntu: 18.04 - 21.10

python3-django (Ubuntu package): before 1:1.11.11-1ubuntu1.15

python-django (Ubuntu package): before 1:1.11.11-1ubuntu1.15

CPE2.3 External links

https://ubuntu.com/security/notices/USN-5204-1


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

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

3) Path traversal

EUVDB-ID: #VU59181

Risk: Low

CVSSv4.0: 0.6 [CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-45452

CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Exploit availability: No

Description

The vulnerability allows a remote user to perform directory traversal attacks.

The vulnerability exists due to input validation error when processing directory traversal sequences in the Storage.save() method. A remote user can pass a specially crafted HTTP filename to the application and write the file outside of the intended directory.

Mitigation

Update the affected package python-django to the latest version.

Vulnerable software versions

Ubuntu: 18.04 - 21.10

python3-django (Ubuntu package): before 1:1.11.11-1ubuntu1.15

python-django (Ubuntu package): before 1:1.11.11-1ubuntu1.15

CPE2.3 External links

https://ubuntu.com/security/notices/USN-5204-1


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user 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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