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Debian Security Advisory DSA 2767-1 (proftpd-dfsg - denial of service)

Information

Severity

Severity

Medium

Family

Family

Debian Local Security Checks

CVSSv2 Base

CVSSv2 Base

5.0

CVSSv2 Vector

CVSSv2 Vector

AV:N/AC:L/Au:N/C:N/I:N/A:P

Solution Type

Solution Type

Vendor Patch

Created

Created

10 years ago

Modified

Modified

2 years ago

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.

Common Vulnerabilities and Exposures (CVE)