Resource exhaustion in py-django (Alpine package)

1) Resource exhaustion

EUVDB-ID: #VU17717

Risk: Low

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-6975

CWE-ID: CWE-400 - Resource exhaustion

Exploit availability: No

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

Install update from vendor's website.

Vulnerable software versions

py-django (Alpine package): 1.11-r0 - 1.11.18-r0

py-django (Alpine package):

External links

http://git.alpinelinux.org/aports/commit/?id=c51ae3c04c4501fab96ced4b8ecc6a81e9c51e09
http://git.alpinelinux.org/aports/commit/?id=f545a3e9d547e92bcc100a029a62c393337e7b8c
http://git.alpinelinux.org/aports/commit/?id=0bfe3678686189b1417d11fa9e11880a1ddd85c2
http://git.alpinelinux.org/aports/commit/?id=e75dee2587e0366d31527c0c11983372be4f532b
http://git.alpinelinux.org/aports/commit/?id=ec414afd222af60156b4bae6021647de7b032675
http://git.alpinelinux.org/aports/commit/?id=c9aae3180a276eb466bdc57f9863de93b0ed3f4f
http://git.alpinelinux.org/aports/commit/?id=d955a610fef38bb0404876d8c4122c0931f3ad43

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.