CVE-2013-4359 json
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 consump…
published 2013-09-30 13 y ago modified 2026-06-16 4 mo ago also EUVD-2013-4243
- cvss
- 5.0
- version 2.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 3.0%
- EPSS 3.0% chance of exploitation in 30 days, percentile 87%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- proftpd-dfsg Debian 14, Debian 13, Debian 12 1.3.5~rc3-2.1
debian advisories DEBIAN-CVE-2013-4359
- proftpd openSUSE Tumbleweed 1.3.5b-2.5
opensuse advisories openSUSE-SU-2024:10048-1
Vendor advisories
What the vendors themselves say about their products: affected, fixed or not affected, and what to do.
red hat product security vex CVE-2013-4359 updated cvss 2.6
proftpd: mod_sftp/mod_sftp_pam invalid pool allocation during kbdint authentication
-
Red Hat All currently supported Red Hat productsnot affected: vulnerable code not present
Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf
Exploit prediction
2.99% chance of exploitation in the next 30 days, higher than 87% of all scored CVEs (FIRST EPSS, 2026-11-09).
Exploits and checks
- kingcope.wordpress.com http://kingcope.wordpress.com/2013/09/11/proftpd-mod_sftpmod_sftp_pam-invalid-pool-allocation-in-kbdint-authentication/ referenced PoC, tagged "exploit" by a source, unverified
- openwall.com http://www.openwall.com/lists/oss-security/2013/09/17/6 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:N/I:N/A:P |
Classification
- Weakness
-
- CWE-189 Numeric Errors
References
-
bugs.proftpd.org
/show_bug.cgi?id=3973
patch
-
kingcope.wordpress.com
/2013/09/11/proftpd-mod_sftpmod_sftp_pam-invalid-pool-allocation-in-kbdint-authentication/
exploit
-
openwall.com
/lists/oss-security/2013/09/17/6
mailing-list, exploit
-
debian.org
/security/2013/dsa-2767
vendor-advisory
-
lists.opensuse.org
/opensuse-updates/2015-06/msg00020.html
vendor-advisory
-
lists.opensuse.org
/opensuse-updates/2013-10/msg00032.html
vendor-advisory
Sources
- CVE List CVE-2013-4359
- NVD CVE-2013-4359
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.