Access of Uninitialized Pointer in pure-ftpd (Alpine package)



Published: 2020-03-25 | Updated: 2022-06-15
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2020-9274
CWE-ID CWE-824
Exploitation vector Network
Public exploit N/A
Vulnerable software
Subscribe 		pure-ftpd (Alpine package)
Operating systems & Components / Operating system package or component

Vendor Alpine Linux Development Team

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Access of Uninitialized Pointer

EUVDB-ID: #VU25651

Risk: Low

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-9274

CWE-ID: CWE-824 - Access of Uninitialized Pointer

Exploit availability: No

Description

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

The vulnerability exists due to access to an uninitialized pointer in init_aliases() function in diraliases.c when processing liked. A remote user with ability to create aliases can crash the server.

Mitigation

Install update from vendor's website.

Vulnerable software versions

pure-ftpd (Alpine package): 1.0.32-r0 - 1.0.49-r0

External links

http://git.alpinelinux.org/aports/commit/?id=97ddd8c8f2ac991903c3d74848ef54118183c16a


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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