oftpd: Denial of Service

1. Gentoo Linux Security Advisory

Package	Vulnerable versions	Unaffected versions	Architecture(s)
net-ftp/oftpd	< 0.3.7-r3	>= 0.3.7-r3	All supported architectures

Related bugreports: #159178

An assertion in oftpd could lead to a denial of service vulnerability.

2. Impact Information

oftpd is a small, anonymous only ftp daemon.

By specifying an unsupported address family in the arguments to a LPRT or LPASV command, an assertion in oftpd will cause the daemon to abort.

Remote, unauthenticated attackers may be able to terminate any oftpd process, denying service to legitimate users.

3. Resolution Information

There is no known workaround at this time.

All oftpd users should upgrade to the latest version:

Code Listing 3.1: Resolution

# emerge --sync
# emerge --ask --oneshot --verbose ">=net-ftp/oftpd-0.3.7-r3"

4. References

Page updated January 15, 2007

Summary: This is a Gentoo Linux Security Advisory

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