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Echoping: Buffer Overflow Vulnerabilities

Content:

1.  Gentoo Linux Security Advisory

Version Information

Advisory Reference GLSA 201406-07 / echoping
Release Date June 06, 2014
Latest Revision June 06, 2014: 1
Impact normal
Exploitable remote
Package Vulnerable versions Unaffected versions Architecture(s)
net-analyzer/echoping < 6.0.2_p434 >= 6.0.2_p434 All supported architectures

Related bugreports: #349569

Synopsis

A buffer overflow in Echoping might allow remote attackers to cause a Denial of Service condition.

2.  Impact Information

Background

Echoping is a small program to test performances of a remote host by sending it TCP packets.

Description

A boundary error exists within the “TLS_readline()” function, which can be exploited to overflow a global buffer by sending an overly long encrypted HTTP reply to Echoping. Also, a similar boundary error exists within the “SSL_readline()” function, which can be exploited in the same manner.

Impact

A remote attacker could send a specially crafted HTTP reply, possibly resulting in a Denial of Service condition.

3.  Resolution Information

Workaround

There is no known workaround at this time.

Resolution

All Echoping users should upgrade to the latest version:

Code Listing 3.1: Resolution

  # emerge --sync
  # emerge --ask --oneshot --verbose
  ">=net-analyzer/echoping-6.0.2_p434"

4.  References



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Page updated June 06, 2014

Summary: This is a Gentoo Linux Security Advisory

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