CVE-2020-9273: In ProFTPD 1.3.7, it is possible to corrupt the memory pool by interrupting the data transfer channel

High severity · published Feb 20, 2020

CVE-2020-9273

In ProFTPD 1.3.7, it is possible to corrupt the memory pool by interrupting the data transfer channel

8.8

CVSS

12.1%

EPSS

On KEV

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.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack vector

Network

Complexity

Low

Privileges

Low

User interaction

None

Confidentiality

High

Integrity

High

Availability

High

Scope

Unchanged

Exploitation

Is it being used?

Exploit prediction (EPSS)12.1% · higher than 96% of CVEs

Exploited in the wildNo evidence yet

CISA KEVNot listed

Ransomware campaign useNot known

Affected products

Which versions

Backports Sle · Opensuse

15.0; 15.0 · source: NVD

Debian Linux · Debian

8.0; 9.0; 10.0 · source: NVD

Fedora · Fedoraproject

30; 31 · source: NVD

Leap · Opensuse

15.1 · source: NVD

Proftpd · Proftpd

1.3.7 · source: NVD

Simatic Net CP 1543-1 Firmware · Siemens

before 3.0 · source: NVD

Simatic Net CP 1545-1 Firmware · Siemens

All versions, or not specified · source: NVD

Affected product

Debian Linux

Debian

All Debian Linux CVEs

References

NVD

https://nvd.nist.gov/vuln/detail/CVE-2020-9273

CVE.org

https://www.cve.org/CVERecord?id=CVE-2020-9273

Mailing List

http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00002.html

Mailing List

http://www.openwall.com/lists/oss-security/2021/08/25/1

Mailing List

http://www.openwall.com/lists/oss-security/2021/09/06/2

Third Party Advisory

https://cert-portal.siemens.com/productcert/pdf/ssa-679335.pdf

Release Notes

https://github.com/proftpd/proftpd/blob/master/RELEASE_NOTES

Third Party Advisory

https://github.com/proftpd/proftpd/issues/903