CVE-2020-9273

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.

Category

8.8
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 52.16% Top 5%
Vendor Advisory debian.org Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org Vendor Advisory opensuse.org Vendor Advisory gentoo.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/proftpd/proftpd/blob/master/RELEASE_NOTES third party advisory release notes
https://github.com/proftpd/proftpd/issues/903 third party advisory
https://lists.debian.org/debian-lts-announce/2020/02/msg00022.html third party advisory mailing list
https://www.debian.org/security/2020/dsa-4635 third party advisory vendor advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XHO3S5WPRRP7VGKIAHLYQVEYW5HRYIJN/ vendor advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VCUPRYSJR7XOM3HQ6H5M4OGDU7OHCHBF/ vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00002.html vendor advisory mailing list third party advisory
https://lists.debian.org/debian-lts-announce/2020/03/msg00002.html third party advisory mailing list
https://security.gentoo.org/glsa/202003-35 third party advisory vendor advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-679335.pdf third party advisory
http://www.openwall.com/lists/oss-security/2021/08/25/1 third party advisory mailing list
http://www.openwall.com/lists/oss-security/2021/09/06/2 third party advisory mailing list

Frequently Asked Questions

What is the severity of CVE-2020-9273?
CVE-2020-9273 has been scored as a high severity vulnerability.
How to fix CVE-2020-9273?
To fix CVE-2020-9273, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-9273 being actively exploited in the wild?
It is possible that CVE-2020-9273 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~52% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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