CVE-2013-4359: Integer Overflow
First published: Mon Sep 30 2013(Updated: )
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.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| ProFTPD | =1.3.4-d | |
| ProFTPD | =1.3.5-rc3 |
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Reference 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
Frequently Asked Questions
What is the severity of CVE-2013-4359?
CVE-2013-4359 has a severity rating that indicates it can cause a denial of service due to memory consumption issues.
How do I fix CVE-2013-4359?
To fix CVE-2013-4359, upgrade to ProFTPD version 1.3.5 or later which addresses this integer overflow vulnerability.
What causes the vulnerability CVE-2013-4359?
CVE-2013-4359 is caused by an integer overflow in the kbdint.c file in mod_sftp, triggered by a large response count value during authentication.
Which versions of ProFTPD are affected by CVE-2013-4359?
CVE-2013-4359 affects ProFTPD versions 1.3.4d and 1.3.5r3.
What types of attacks can exploit CVE-2013-4359?
CVE-2013-4359 can be exploited by remote attackers to cause denial of service through excessive memory consumption.
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- vendor/proftpd
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- version/proftpd/1.3.4-d
- version/proftpd/1.3.5-rc3