What’s Vulnerable › Vulnerabilities

CVE-2013-4359

• Severity: medium (CVSS 5.0 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.0% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2013-09-30 · updated 2026-06-16
• Weakness: CWE-189

Description

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.

Affected products

• ProFTPD: 1.3.4-d, 1.3.5-rc3

References

• 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
• 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

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