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Debian Security Advisory DSA 2767-1 (proftpd-dfsg - denial of service)
Information
Severity
Severity
Family
Family
CVSSv2 Base
CVSSv2 Base
CVSSv2 Vector
CVSSv2 Vector
Solution Type
Solution Type
Created
Created
Modified
Modified
Summary
Kingcope discovered that the mod_sftp and mod_sftp_pam modules of proftpd, a powerful modular FTP/SFTP/FTPS server, are not properly validating input, before making pool allocations. An attacker can use this flaw to conduct denial of service attacks against the system running proftpd (resource exhaustion).
Affected Software
Affected Software
proftpd-dfsg on Debian Linux
Detection Method
Detection Method
This check tests the installed software version using the apt package manager.
Solution
Solution
For the oldstable distribution (squeeze), this problem has been fixed in version 1.3.3a-6squeeze7. For the stable distribution (wheezy), this problem has been fixed in version 1.3.4a-5+deb7u1. For the testing (jessie) and unstable (sid) distributions, this problem will be fixed soon. We recommend that you upgrade your proftpd-dfsg packages.