CVE-2010-4221

Severity: critical (CVSS 10.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 91.3% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2010-11-09 · updated 2026-06-16
Weakness: CWE-119

Description

Multiple stack-based buffer overflows in the pr_netio_telnet_gets function in netio.c in ProFTPD before 1.3.3c allow remote attackers to execute arbitrary code via vectors involving a TELNET IAC escape character to a (1) FTP or (2) FTPS server.

Affected products

ProFTPD: 1.3.2, 1.3.2-a, 1.3.2-b, 1.3.2-c, 1.3.2-d, 1.3.2-e (+9)

References

http://bugs.proftpd.org/show_bug.cgi?id=3521
http://lists.fedoraproject.org/pipermail/package-announce/2010-November/050687.html
http://lists.fedoraproject.org/pipermail/package-announce/2010-November/050703.html
http://lists.fedoraproject.org/pipermail/package-announce/2010-November/050726.html
http://secunia.com/advisories/42052
http://secunia.com/advisories/42217
http://www.mandriva.com/security/advisories?name=MDVSA-2010:227
http://www.proftpd.org/docs/NEWS-1.3.3c
http://www.securityfocus.com/bid/44562
http://www.vupen.com/english/advisories/2010/2941
http://www.vupen.com/english/advisories/2010/2959
http://www.vupen.com/english/advisories/2010/2962

Get alerted when CVE-2010-4221 or the next vulnerability affects your stack