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.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - 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. (CVE-2020-9274)

Note that Nessus relies on the presence of the package as reported by the vendor.

There are packages installed that are affected by multiple vulnerabilities referenced in the following CVEs:

  - 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. (CVE-2020-9274)

  - An issue was discovered in Pure-FTPd 1.0.49. An out-of-bounds (OOB) read has been detected in the
    pure_strcmp function in utils.c. (CVE-2020-9365)

The remote Ubuntu 16.04 LTS host has packages installed that are affected by a vulnerability as referenced in the USN-4515-1 advisory.

    Antonio Norales discovered that Pure-FTPd incorrectly handled directory aliases. An attacker could     possibly use this issue to access sensitive information. (CVE-2020-9274)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Fix CVE-2020-9365 and CVE-2020-9274

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website.
Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote host is affected by the vulnerability described in GLSA-202003-54 (Pure-FTPd: Multiple vulnerabilities)

    Multiple vulnerabilities have been discovered in Pure-FTPd. Please       review the CVE identifiers referenced below for details.
  Impact :

    A remote attacker could possibly cause a Denial of Service condition or       cause an information disclosure.
  Workaround :

    There is no known workaround at this time.

An uninitialized pointer vulnerability was discovered in pure-ftpd, a secure and efficient FTP server, which could result in an out-of-bounds memory read and potential information disclosure.

For Debian 8 'Jessie', this problem has been fixed in version 1.0.36-3.2+deb8u1.

We recommend that you upgrade your pure-ftpd packages.

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

ID	Name	Product	Family	Severity
256965	Linux Distros Unpatched Vulnerability : CVE-2020-9274	Nessus	Misc.	high
406592	Alpine: multiple pure-ftpd packages: security update to 1.0.49-r1	Tenable Cloud Security	Alpine Linux Local Security Checks	high
406592	Alpine: multiple pure-ftpd packages: security update to 1.0.49-r1	Tenable Self-Hosted Container Security	Alpine Linux Local Security Checks	high
183583	Ubuntu 16.04 LTS : Pure-FTPd vulnerability (USN-4515-1)	Nessus	Ubuntu Local Security Checks	high
400442	Alpine: multiple pure-ftpd packages: security update to 1.0.49-r0 (deprecated)	Tenable Cloud Security	Alpine Linux Local Security Checks	high
400442	Alpine: multiple pure-ftpd packages: security update to 1.0.49-r0 (deprecated)	Tenable Self-Hosted Container Security	Alpine Linux Local Security Checks	high
136634	Fedora 30 : pure-ftpd (2020-fa83ea0492)	Nessus	Fedora Local Security Checks	high
136632	Fedora 31 : pure-ftpd (2020-84fb0920fd)	Nessus	Fedora Local Security Checks	high
134929	GLSA-202003-54 : Pure-FTPd: Multiple vulnerabilities	Nessus	Gentoo Local Security Checks	high
134126	Debian DLA-2123-1 : pure-ftpd security update	Nessus	Debian Local Security Checks	high

Detections

Analytics

CVE-2020-9274

high

Tenable Plugins

high

high

high

high

high

high

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high