Vulnerability CVE-2020-9273
Published: 2020-02-20

Description:
In ProFTPD 1.3.7, it is possible to corrupt the memory pool by interrupting the data transfer channel. This triggers a use-after-free in alloc_pool in pool.c, and possible remote code execution.

Type:

CWE-416

 (Use After Free)

CVSS2 => (AV:N/AC:L/Au:S/C:C/I:C/A:C)

CVSS Base Score
Impact Subscore
Exploitability Subscore
9/10
10/10
8/10
Exploit range
Attack complexity
Authentication
Remote
Low
Single time
Confidentiality impact
Integrity impact
Availability impact
Complete
Complete
Complete
Affected software
Proftpd -> Proftpd 

 References:
https://github.com/proftpd/proftpd/blob/master/RELEASE_NOTES
https://github.com/proftpd/proftpd/issues/903
https://lists.debian.org/debian-lts-announce/2020/02/msg00022.html
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VCUPRYSJR7XOM3HQ6H5M4OGDU7OHCHBF/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XHO3S5WPRRP7VGKIAHLYQVEYW5HRYIJN/
https://www.debian.org/security/2020/dsa-4635
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