CVE-2020-9273

high-risk

Published 2020-02-20

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.

Do I need to act?

68.9% chance of exploitation in next 30 days

EPSS score — higher than 31% of all CVEs

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 8.8/10 High

NETWORK / LOW complexity

Affected Products (11)

Proftpd

Debian Linux

Fedora

Backports Sle

Leap

Simatic Net Cp 1545-1 Firmware

Simatic Net Cp 1543-1 Firmware

Affected Vendors

Debian Siemens Proftpd Fedoraproject Opensuse

References (24)

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

Mailing List https://lists.debian.org/debian-lts-announce/2020/02/msg00022.html

Mailing List https://lists.debian.org/debian-lts-announce/2020/03/msg00002.html

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro...

Third Party Advisory https://security.gentoo.org/glsa/202003-35

Third Party Advisory https://www.debian.org/security/2020/dsa-4635

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

Mailing List https://lists.debian.org/debian-lts-announce/2020/02/msg00022.html

Mailing List https://lists.debian.org/debian-lts-announce/2020/03/msg00002.html

and 4 more references

/ 100

high-risk

Severity 30/34 · Critical

Exploitability 19/34 · Moderate

Exposure 16/34 · Moderate