CVE-2020-9274

Name: CVE-2020-9274
Creator: NVD / NIST
Published: 2020-02-26T16:15:19.847+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 5.81%

Last modified Jun 17, 2026

CVE-2020-9274 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. An issue was discovered in Pure-FTPd 1.0.49. An uninitialized pointer vulnerability has been detected in the diraliases linked list. EPSS estimates a 5.81% chance of exploitation in the next 30 days.

Description

An issue was discovered in Pure-FTPd 1.0.49. An uninitialized pointer vulnerability has been detected in the diraliases linked list. When the *lookup_alias(const char alias) or print_aliases(void) function is called, they fail to correctly detect the end of the linked list and try to access a non-existent list member. This is related to init_aliases in diraliases.c.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

5.81%

92.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-824

Affected Software

Vendor	Product	Versions
Pureftpd	Pure-Ftpd	< 1.0.50
Debian	Debian Linux	8.0
Fedoraproject	Extra Packages For Enterprise Linux	7.0
Fedoraproject	Extra Packages For Enterprise Linux	8.0
Fedoraproject	Fedora	30
Fedoraproject	Fedora	31
Fedoraproject	Fedora	32
Canonical	Ubuntu Linux	16.04

References

https://github.com/jedisct1/pure-ftpd/commit/8d0d42542e2cb7a56d645fbe4d0ef436e38bcefaPatch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/02/msg00029.htmlMailing List, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/22P44PECZWNDP7CMBL7NRBMNFS73C5Z2/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/B5NSUDWXZVWUCL6R2PTX3KBB42Z62CA5/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/U5DBVHJCXWRSJPNJQCJQCKZF6ZDPZCKA/
https://security.gentoo.org/glsa/202003-54Third Party Advisory
https://usn.ubuntu.com/4515-1/Third Party Advisory
https://www.pureftpd.org/project/pure-ftpd/news/Vendor Advisory
https://github.com/jedisct1/pure-ftpd/commit/8d0d42542e2cb7a56d645fbe4d0ef436e38bcefaPatch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/02/msg00029.htmlMailing List, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/22P44PECZWNDP7CMBL7NRBMNFS73C5Z2/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/B5NSUDWXZVWUCL6R2PTX3KBB42Z62CA5/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/U5DBVHJCXWRSJPNJQCJQCKZF6ZDPZCKA/
https://security.gentoo.org/glsa/202003-54Third Party Advisory
https://usn.ubuntu.com/4515-1/Third Party Advisory
https://www.pureftpd.org/project/pure-ftpd/news/Vendor Advisory

Timeline

Published: Feb 26, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-9274?

How severe is CVE-2020-9274?

CVE-2020-9274 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 5.81% probability of exploitation in the next 30 days.

How do I fix CVE-2020-9274?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-9274?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST