#VU42524 Input validation error in ProFTPD - CVE-2013-4359
Published: October 1, 2013 / Updated: August 10, 2020
Vulnerability identifier: #VU42524
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2013-4359
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
ProFTPD
ProFTPD
Software vendor:
ProFTPD
ProFTPD
Description
The vulnerability allows a remote non-authenticated attacker to perform service disruption.
Integer overflow in kbdint.c in mod_sftp in ProFTPD 1.3.4d and 1.3.5r3 allows remote attackers to cause a denial of service (memory consumption) via a large response count value in an authentication request, which triggers a large memory allocation.
Remediation
Install update from vendor's website.
External links
- http://bugs.proftpd.org/show_bug.cgi?id=3973
- http://kingcope.wordpress.com/2013/09/11/proftpd-mod_sftpmod_sftp_pam-invalid-pool-allocation-in-kbdint-authentication/
- http://lists.opensuse.org/opensuse-updates/2013-10/msg00032.html
- http://lists.opensuse.org/opensuse-updates/2015-06/msg00020.html
- http://www.debian.org/security/2013/dsa-2767
- http://www.openwall.com/lists/oss-security/2013/09/17/6