#VU17717 Resource exhaustion in Django - CVE-2019-6975

Vulnerability identifier: #VU17717

Vulnerability risk: Low

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2019-6975

CWE-ID: CWE-400

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Django
Web applications / CMS

Vendor: Django Software Foundation

Description

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

The vulnerability exists due to improper memory operations that exist when the django.utils.numberformat.format() function receives a decimal with a large number of digits or a large component. A remote attacker can send a request that submits malicious input, consume excessive amounts of memory resources, resulting in a DoS condition.

Mitigation
The vulnerability has been addressed in the versions 2.1.6, 2.0.11, 1.11.19.

Vulnerable software versions

Django: 1.11 - 1.11.18, 2.0.0 - 2.1.5

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External links
https://docs.djangoproject.com/en/dev/releases/security/
https://groups.google.com/forum/#!topic/django-announce/WTwEAprR0IQ
https://www.djangoproject.com/weblog/2019/feb/11/security-releases/
https://www.openwall.com/lists/oss-security/2019/02/11/1

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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.